South Dakota Permit Practice Test — DPS Written Test, Free to Start
Free 10-question South Dakota permit practice test, then 40-question practice tests, each question cited to the South Dakota Driver License Manual.
The exam
This practice test is 40 questions, and 32 correct is a pass. Everything on it comes out of South Dakota Driver License Manual. Officially it is the knowledge test; most people call it the written test, or the permit test.
South Dakota does not publish how many questions its knowledge test asks. This practice test asks 40, and passes at the 80% set by South Dakota’s own rules (the Department of Public Safety’s Driver License Testing Information, at sd.gov).
How this works
Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.
You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.
Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.
Ask a question about South Dakota road law
Easier than searching the manual: ask in your own words — how far from a fire hydrant you may park, when you must stop for a school bus — and the answer comes from South Dakota Driver License Manual or South Dakota’s code, with the page or the section it is in. When neither says, the answer says so rather than guess. Or tick Nationwide and compare every state on one question.
What it costs
- One payment, once — not a subscription. Nothing renews and there is nothing to cancel, for an exam you sit one time.
- Free to start: a 10-question test and the first section of cards. No sign-up and no account.
- Paying opens the rest of the cards, unlimited full-length practice tests, and retests built from exactly the questions you got wrong.
- Every level up to Prepared — 3 tests passed in a row.
- Do the work, fail the real exam, and we refund you.
What South Dakota tests
215 concepts, 723 separate rules. Each one is a page of its own.
- Emergency red lights stop — 2 laws
- Amber yellow blue move over — 4 laws
- Move over law penalties — 2 laws
- Driver license basics — 5 laws
- License eligibility — 8 laws
- Selective service application — 1 law
- Instruction permit requirements — 2 laws
- Instruction permit holding period — 3 laws
- Instruction permit supervision — 3 laws
- Instruction permit practice hours — 2 laws
- Permit wireless device ban — 2 laws
- Restricted minors permit requirements — 2 laws
- Restricted minors permit hours — 3 laws
- Restricted minors permit period — 2 laws
- Operators license — 3 laws
- Duplicate license — 2 laws
- Under 21 license expiry — 1 law
- Drive test cooperation — 2 laws
- License transfer and exam — 2 laws
- Vision test requirements — 2 laws
- Knowledge and drive test — 3 laws
- Unsuccessful exam retest — 2 laws
- License restrictions — 1 law
- License renewal — 6 laws
- Loss of driving privileges — 6 laws
- Revocation and suspension tests — 2 laws
- Minor permit suspension — 3 laws
- Vehicle registration and title — 5 laws
- Financial responsibility filing — 3 laws
- Vehicle insurance required — 5 laws
- No insurance penalty — 4 laws
- Point system rules — 6 laws
- Point suspension periods — 3 laws
- Point schedule — 10 laws
- Vision test standard — 2 laws
- Vision aspects — 3 laws
- Corrective lenses — 3 laws
- Hearing — 3 laws
- Fatigue — 7 laws
- Texting law — 1 law
- Driver distractions — 3 laws
- Aggressive driving — 2 laws
- Alcohol and driving — 4 laws
- Under 21 alcohol — 4 laws
- Blood alcohol limits — 4 laws
- Alcohol effects — 3 laws
- Drunk driving penalties — 5 laws
- Implied consent — 4 laws
- Hidden drunkenness — 1 law
- Think sign program — 2 laws
- Over the counter drugs — 3 laws
- Prescription and illegal drugs — 3 laws
- Emotions — 4 laws
- Health conditions — 5 laws
- Tire pressure check — 3 laws
- Tire tread penny test — 1 law
- Vehicle maintenance — 8 laws
- Exhaust safety — 2 laws
- Window tint — 3 laws
- Clear view windows — 5 laws
- Seat adjustment — 5 laws
- Mirror adjustment — 4 laws
- Seat belt use — 4 laws
- Front seat belt law — 3 laws
- Air bags — 1 law
- Child seating position — 4 laws
- Infant car carrier — 6 laws
- Child restraint law — 3 laws
- Teen driver seat belt — 3 laws
- Car seat guide — 4 laws
- Car seat misuse — 1 law
- Seat belt myths — 4 laws
- Secure your load — 3 laws
- Trip planning — 1 law
- Starting the engine — 3 laws
- Moving the vehicle — 2 laws
- Stopping the vehicle — 3 laws
- Steering technique — 2 laws
- Hand position — 6 laws
- Controlling speed — 2 laws
- Backing up — 5 laws
- Yielding right of way — 6 laws
- Funeral processions — 2 laws
- Traffic control devices — 1 law
- Pedestrian hybrid beacon — 3 laws
- Traffic signal lights — 1 law
- Red traffic signals — 5 laws
- Yellow traffic signals — 5 laws
- Green traffic signals — 2 laws
- Signal out of operation — 2 laws
- Warning signs — 2 laws
- Warning sign pictures — 15 laws
- Railroad sign pictures — 2 laws
- Railroad crossings — 5 laws
- Railroad emergency notification sign — 2 laws
- Work zones — 5 laws
- Work zone sign pictures — 2 laws
- Regulatory signs — 2 laws
- Regulatory sign pictures — 10 laws
- Speed limit signs — 2 laws
- Stop sign rules — 1 law
- One way street rules — 1 law
- Slow moving vehicle — 2 laws
- Guide signs — 3 laws
- Guide sign pictures — 1 law
- Pavement markings — 4 laws
- Crosswalks and stop lines — 3 laws
- Shared center lane — 2 laws
- Turning steps — 4 laws
- Right turn position — 2 laws
- Left turn position — 1 law
- Multiple lane turns — 1 law
- Two point turnabout — 5 laws
- Three point turnabout — 4 laws
- U turn limits — 4 laws
- Intersection caution — 5 laws
- Roundabout flow — 2 laws
- Truck apron — 2 laws
- Roundabout steps — 4 laws
- Roundabout emergency vehicles — 2 laws
- Multilane roundabout — 3 laws
- Cloverleaf interchange — 2 laws
- Diverging diamond interchange — 4 laws
- Interstate driving technique — 3 laws
- School bus stop — 3 laws
- Parking responsibility — 1 law
- No parking zones — 8 laws
- Hill parking — 4 laws
- Perpendicular angle parking — 3 laws
- Parallel parking — 5 laws
- Lane change steps — 1 law
- Blind spots lane — 2 laws
- Keep pace with traffic — 5 laws
- Entering traffic merge — 3 laws
- Leaving traffic exit — 2 laws
- Slow vehicles on grades — 1 law
- Trouble spots slow down — 5 laws
- Multilane passing basics — 4 laws
- Enforcement stop conduct — 7 laws
- Visual search pattern — 1 law
- Look ahead distance — 4 laws
- Look to sides intersections — 7 laws
- Look to rear — 3 laws
- Turn signal distance — 3 laws
- Check traffic quickly — 1 law
- Backing tips — 2 laws
- Deer collisions — 5 laws
- Curves speed — 2 laws
- Slippery roads speed — 1 law
- Hydroplaning — 2 laws
- Stopping distance — 4 laws
- Space cushion — 1 law
- Following distance count — 3 laws
- Increase following distance — 9 laws
- Space to side — 6 laws
- Space behind — 6 laws
- Passing space — 4 laws
- Passing hills curves — 6 laws
- Space dangerous situations — 5 laws
- Separate risks — 1 law
- Compromise space — 1 law
- Headlights visibility — 5 laws
- High beams — 7 laws
- Using the horn — 5 laws
- Breakdown visibility — 3 laws
- Avoid blind spots — 2 laws
- Signaling movements — 5 laws
- Hand signals — 4 laws
- Crash avoidance options — 1 law
- Anti lock braking — 4 laws
- Emergency swerve steering — 3 laws
- Emergency accelerating — 1 law
- Skid recovery — 3 laws
- Surface drop offs — 1 law
- Preventing malfunctions — 1 law
- Brake failure — 3 laws
- Tire blowout — 5 laws
- Engine power failure — 3 laws
- Stuck accelerator — 2 laws
- Vehicle breakdown warnings — 3 laws
- Headlight failure — 2 laws
- Passing a crash scene — 2 laws
- Duty to stop after crash — 4 laws
- Vehicle emergency kit — 1 law
- Protect yourself in collisions — 3 laws
- At the accident scene — 5 laws
- Helping the injured — 6 laws
- Reporting the accident — 6 laws
- Damaging unattended vehicles — 3 laws
- Pedestrian yielding — 4 laws
- Pedestrian hidden areas — 5 laws
- Bicycles are vehicles — 2 laws
- Bicycle yielding and lanes — 4 laws
- Bicyclist driver care — 7 laws
- Bicycle passing distance — 6 laws
- Motorcycle space — 3 laws
- Motorcycle visibility — 4 laws
- Large vehicle limits — 2 laws
- No zone definition — 1 law
- Truck side no zone — 3 laws
- Truck front no zone — 1 law
- Truck rear no zone — 3 laws
- Truck turning — 5 laws
- Truck merging — 2 laws
- Runaway truck ramps — 2 laws
- Bus hazards — 4 laws
- Emergency vehicle yield — 2 laws
- Police traffic stops — 3 laws
- Farm machinery and horses — 4 laws
- Night driving vision — 5 laws
- Work zone driving tips — 5 laws
- Winter driving tips — 5 laws
- Snowplow distance — 2 laws
- Closed roads — 1 law
- Rural road hazards — 6 laws
Questions from the South Dakota test
You approach a stopped emergency vehicle that is showing red lights. What must you do?
Stop completely before you reach it. Officers and medics work on foot beside a stopped emergency vehicle, and a car rolling past can hit them. South Dakota Driver License Manual, p.2: “South Dakota law requires all motorists from any direction approaching an authorized emergency vehicle making use of red visual signals, to come to a complete stop before reaching the stopped emergency vehicle and may, unless otherwise directed, proceed with caution only after making sure it is safe to do so.”
On a four-lane highway you come up on a stopped vehicle flashing amber lights. What must you do?
Merge to the lane farthest from it. Tow drivers and road crews stand inches from the lane, and a car passing close at speed can kill them. South Dakota Driver License Manual, p.2: “When motorists are travelling on South Dakota interstates or highways with two or more lanes travelling in the same direction as the authorized emergency vehicle, merge into the lane farthest from the vehicle at least three hundred feet before the vehicle and proceed with caution, unless otherwise directed.”
What class of offense is failing to stop or move over for a stopped emergency vehicle?
A class 2 misdemeanor. Drivers who think the rule is only advice keep speeding past crash scenes, and the people working there pay for it. South Dakota Driver License Manual, p.2: “A violation of this law is a class 2 misdemeanor which is punishable by a fine and/or time in county jail.”
Who must have a driver license in South Dakota?
Anyone driving on public roadways. A driver who never passed any test may not know the rules, and the first lesson can be a crash. South Dakota Driver License Manual, p.5: “Anyone who operates a motor vehicle or a motor-driven cycle on public roadways in South Dakota is required to have a driver license.”
What is the youngest age at which you may get a South Dakota driver license or permit?
14 years old. A child too young to judge speed and distance can freeze or panic when a car or deer appears. South Dakota Driver License Manual, p.5: “Are at least 14 years of age”
What must a male applicant aged 18 to 25 state on his license application?
That he is registered or allows registration. A young man who never registers can lose student aid and government jobs without knowing why. South Dakota Driver License Manual, p.7: “Any male applicant aged 18 to 25 must submit on his application that he has registered with the Selective Service, or that he is authorizing the Department of Public Safety to forward to the Selective Service the personal information necessary to register.”
Which tests must you pass to get an instruction permit?
The vision and knowledge tests. A new driver who cannot read signs or see far enough is a danger even with an adult beside them. South Dakota Driver License Manual, p.8: “To obtain an Instruction Permit, you must be at least 14 years of age and pass the vision and knowledge tests.”
Without driver education, how long must a minor hold an instruction permit before upgrading?
275 days. New drivers crash most in their first months, so the long wait keeps an adult in the seat while mistakes are common. South Dakota Driver License Manual, p.8: “Minors at least 14 years of age, but less than 18 years of age, must hold the valid permit continuously for 275 days (180 days if successful completion [score of 80% or better on both written and driving portions of driver education] of an approved Department of Education driver education course) prior to upgrading the permit to a Restricted Minor’s Permit or Operator’s License.”
Who may supervise an instruction permit holder under 18?
A parent or adult licensed 1 year or more. A helper who barely knows how to drive cannot warn a beginner about the truck or the ice ahead. South Dakota Driver License Manual, p.8: “The adult must be a parent/legal guardian or other adult with a valid driver’s license and at least one year of driving experience.”
How many hours of adult-supervised driving must a minor log on an instruction permit?
50 hours. Skills like judging gaps and braking smoothly only come with hours, and a teen without them panics in real traffic. South Dakota Driver License Manual, p.8: “The driver must complete 50 hours of adult supervised driving on an Instruction Permit (must include 10 hours in inclement weather and 10 hours after dark).”
May an instruction or restricted minor's permit holder talk on a cell phone while driving?
No, they may not use a wireless device. A new driver already struggles to watch the road, and one glance at a phone can mean missing a stopped car. South Dakota Driver License Manual, p.8: “Instruction Permit holders may not use any type of wireless communication device while operating a motor vehicle upon public roadways.”
To get a restricted minor's permit, how long must you have gone without a traffic conviction?
The 6 months before you apply. A teen who keeps getting tickets is showing they are not ready to drive without an adult beside them. South Dakota Driver License Manual, p.8: “To obtain a Restricted Minor’s Permit, you must be at least 14 years of age, complete the requirements of the Instruction Permit, pass the driving test, and not have been convicted of a traffic violation during the six months prior to application for the Restricted Minor’s Permit.”
During which hours may a restricted minor's permit holder drive with a parent's permission but no adult in the car?
6 a.m. to 10 p.m.. Late-night roads hold more tired and drunk drivers, and a new driver has the least skill to dodge them. South Dakota Driver License Manual, p.8: “Restrictions: Entitles the holder, while having the permit in their immediate physical possession, to operate a motor vehicle during the hours of 6 a.m. to 10 p.m. if the motor vehicle is being operated with the permission of the minor’s parent/legal guardian.”
How long must you drive on a restricted minor's permit before upgrading?
At least 6 months. Driving alone is new and hard, and the first months are when a teen is most likely to crash. South Dakota Driver License Manual, p.8: “The Restricted Permit holder must drive on the Restricted Permit for a minimum of 6 months and no passengers are allowed except for immediate family or members of household for first 6 months on the Restricted Permit.”
What is the minimum age for a South Dakota operator's license?
16 years old. Younger drivers have the least judgment on the road, so full freedom waits until they have shown their skills. South Dakota Driver License Manual, p.8: “To obtain an Operator’s License, you must be at least 16 years of age and must have passed the vision, knowledge and driving tests.”
When you get a duplicate license, what expiration date does it carry?
The original license's expiration date. A driver who thinks a duplicate gives a fresh term can drive past the real expiration date without knowing it. South Dakota Driver License Manual, p.9: “When a duplicate license is obtained, your license will retain the original license expiration date.”
A license issued to someone under 21, with 5 years or less until their 21st birthday, expires when?
30 days after their 21st birthday. A young driver who misses this date keeps driving on an expired license and can be cited at the next stop. South Dakota Driver License Manual, p.9: “Note to all applicants: Any driver license or non-driver ID issued to any individual under 21 years of age with five years or less remaining until the applicant’s 21st birthday will expire 30 days after the individual’s 21st birthday.”
Who provides the vehicle for the on-the-road skill test?
The applicant brings their own safe vehicle. A car with bad brakes or lights could crash with the examiner inside, so the applicant must bring one that works. South Dakota Driver License Manual, p.10: “License applicants must furnish their own safe vehicle for the on-the-road skill test.”
You hold a valid license from another state with no hazardous materials endorsement. What testing is needed to transfer it?
No testing is required. Retesting every licensed newcomer would jam the exam stations while adding nothing their old state did not check. South Dakota Driver License Manual, p.10: “If you are currently holding a valid out-of-state driver license, no testing will be required for the transfer of that license unless you have a hazardous materials endorsement.”
You wear glasses to take the vision test. What follows?
You must wear them whenever you drive. A driver who passed with glasses but drives without them may not see a stop sign or a child in time. South Dakota Driver License Manual, p.10: “If you wear glasses or contact lenses while taking the vision test, you will be required to wear them whenever driving.”
Someone is caught cheating on the knowledge test. How soon may they test again?
After at least 2 weeks. A driver who cheats past the test hits the road not knowing the rules that keep others alive. South Dakota Driver License Manual, p.10: “If someone is caught cheating you will not be allowed to re-test the following day, you will be required to wait a minimum of two weeks before being allowed to test again.”
You fail a license test today. When is the earliest you may retest?
The next working day. Retaking a test minutes later rewards guessing, and a driver who guessed through still does not know the rules. South Dakota Driver License Manual, p.10: “If you fail any of the tests, you may not re-test before the next working day.”
A driver who cannot see clearly with their right eye may be restricted to what?
A left outside rearview mirror. A driver weak on one side cannot see cars coming up there, and a mirror on the other side helps fill the gap. South Dakota Driver License Manual, p.11: “For example, a person who cannot see clearly with their right eye will be restricted to driving a vehicle with a left outside rearview mirror.”
How long is a South Dakota driver license valid?
5 years. A driver who loses track of the date ends up driving on an expired license and can be cited at any stop. South Dakota Driver License Manual, p.12: “Your driver license is valid for 5 years and will expire on your birthday or 30 days after your birthday if you are turning 21.”
Which of these can cost you your driver license?
Using someone else's license as your own. A borrowed license lets a driver with a bad record hide it, and the officer cannot stop a dangerous driver. South Dakota Driver License Manual, p.12: “attempting to alter the information on your license or using someone else’s license”
After a license revocation, what testing is needed to get a license again?
Vision and knowledge tests, at least. A driver who lost the license for serious offenses has been off the road and may have forgotten the rules. South Dakota Driver License Manual, p.12: “Vision and knowledge tests will be required following a revocation.”
A permit holder under 16 is convicted of a first traffic violation. How long is the suspension?
30 days. A young driver who breaks the rules early and keeps driving is likely to break them again, harder. South Dakota Driver License Manual, p.13: “If the Department receives record of a conviction for a traffic violation or a violation of the Instruction Permit, Restricted Permit or Driver License for a minor under 16 years of age, the driving privileges shall be suspended for a period of thirty days or as otherwise required by law.”
You bring a vehicle into South Dakota from another state. How long do you have to register it?
90 days. Driving on an old state's plates past the deadline can get the car stopped and ticketed. South Dakota Driver License Manual, p.13: “You have 90 days to register a vehicle brought in from another state.”
After which of these must a driver file proof of financial responsibility before driving again?
A license revocation for DWI. A driver who has already caused harm could hurt someone again with no money to pay for the damage. South Dakota Driver License Manual, p.13: “Any operator who has had their driver license revoked or suspended following a JUDGMENT (resulting from an uninsured auto accident), a conviction for NO INSURANCE, VEHICULAR HOMICIDE, DWI, or two convictions of RECKLESS DRIVING (within a one-year period) must establish proof of financial responsibility for the future before they may drive or reregister any vehicle in this state.”
Which of these meets South Dakota's financial responsibility law for a vehicle owner?
An owner's liability insurance policy. A driver with no insurance who causes a crash leaves the injured family to pay the hospital bills themselves. South Dakota Driver License Manual, p.13: “South Dakota state law SDCL 32-35-113 requires the owner of any motor vehicle that is required to be registered, maintain in force one of the following forms of financial responsibility:”
What fine can follow a conviction for failing to maintain proof of insurance?
$100. A driver who skips insurance to save money can end up with a criminal record and a jail stay. South Dakota Driver License Manual, p.14: “Penalty - A conviction for failure to maintain proof of financial responsibility is a Class 2 Misdemeanor (30 days imprisonment in a county jail, $100 fine or both), driver license suspension for a period of not less than 30 days or more than one year and filing proof of insurance (SR22) with the State of South Dakota for 3 years from the date of eligibility.”
How many points in any 12 consecutive months make you subject to suspension?
15 points. A driver piling up tickets is heading for a crash, and the point limit takes them off the road first. South Dakota Driver License Manual, p.14: “Any operator who accumulates 15 points in any 12 consecutive months, or 22 points in any 24 consecutive months, is subject to a driver license suspension.”
How long is a first point-system suspension?
60 days. Even a first suspension takes away school and work trips for weeks, so the points are worth avoiding. South Dakota Driver License Manual, p.14: “First Suspension 60 days”
How many points does a DWI conviction carry?
10 points. A drunk driver cannot judge speed or react in time, and that is how families are killed on the road. South Dakota Driver License Manual, p.14: “Driving While Intoxicated (DWI/DUI) 10*”
What vision score with both eyes do you need for a South Dakota license without restrictions?
20/40 or better. A driver who cannot read the road clearly sees a stopped car or a child far too late to stop. South Dakota Driver License Manual, p.18: “To qualify for a driver license without restrictions, an applicant must score 20/40 or better with both eyes, but no worse than 20/50 in either eye.”
Because you cannot focus on things off to your side, what else does the manual tell you to do?
Use your side mirrors and glance to the side. A car drifting up beside you is a blur at the edge of your eye until it is already in your lane. South Dakota Driver License Manual, p.18: “Because you cannot focus on things to the side, you also must use your side mirrors and glance to the side if necessary.”
Your license says you must wear corrective lenses. What happens if you are stopped while not wearing them?
You could get a ticket. Without the glasses your eyes were tested in, signs and brake lights blur and you react too late. South Dakota Driver License Manual, p.18: “If your driver license says you must wear corrective lenses and you are not wearing them, you could get a ticket if stopped.”
Why does the manual say hearing can help you drive safely?
Horns, sirens and screeching tires warn of danger. A siren you never hear means an ambulance arrives at the intersection at the same moment you do. South Dakota Driver License Manual, p.18: “The sound of horns, sirens, or screeching tires can warn you of danger.”
How does fatigue affect a driver?
It can affect vision and slow decisions. A tired driver takes an extra second to see brake lights and to decide to stop, and rear-ends the car ahead. South Dakota Driver License Manual, p.18: “Fatigue can affect vision and increase the time to make decisions.”
Under South Dakota law, which of these is prohibited while driving?
Reading texts on a phone. Eyes on a phone for a few seconds at highway speed cross a whole football field blind. South Dakota Driver License Manual, p.19: “Texting, reading texts, and social networking is prohibited by state law.”
How does the manual compare mental distractions with taking your eyes off the road?
They are just as dangerous. A driver lost in thought looks right at a red light and drives through it. South Dakota Driver License Manual, p.19: “Mental activities that take your mind away from driving are just as dangerous.”
How does the manual define aggressive driving?
Intentionally doing something that endangers others. A driver who means to bully others on the road soon forces someone into a crash. South Dakota Driver License Manual, p.19: “Aggressive driving occurs when an individual intentionally commits an action that endangers other persons or property.”
What does the manual say about drinking and driving for experienced drivers?
No one can drink and drive safely. An experienced driver who has had a few drinks still reacts late and misjudges the curve. South Dakota Driver License Manual, p.19: “No one can drink alcohol and drive safely, even if you have been driving for many years.”
If you are under 21 in South Dakota, which is illegal?
Buying, possessing or drinking alcohol. A teen with alcohol in the car has broken the law before the engine is even started. South Dakota Driver License Manual, p.19: “If under the age of 21, it is illegal to purchase, possess, or drink alcoholic beverages.”
For a driver 21 or older, what BAC is evidence of driving under the influence?
0.08% or more. At that level your eyes, hands and judgment are slowed enough to miss a stopped car. South Dakota Driver License Manual, p.20: “A Blood Alcohol Concentration of 0.08% (0.02% if under 21 years of age) or more is evidence that you were driving under the influence of alcohol.”
Which group of abilities does the manual say alcohol and impairing drugs reduce?
Judgment, vision, color distinction, reaction time. A driver who cannot tell a red light from a yellow one or react in time drives into the cross traffic. South Dakota Driver License Manual, p.20: “Color distinction: This reduces the ability to distinguish colors.”
With a BAC of 0.08% or more, for at least how long may your license be revoked?
30 days. Losing the license for a month means no way to get to work, school or practice. South Dakota Driver License Manual, p.20: “If you have a BAC of 0.08% or more, your driver’s license and/or driving privileges may be revoked for a minimum of 30 days, and you may be subject to criminal penalties.”
Under South Dakota’s implied consent law, when have you agreed to a chemical test?
Whenever you drive on a public highway. Without the test a drunk driver could simply say no and keep driving the next day. South Dakota Driver License Manual, p.20: “You give your consent for a chemical test whenever you drive on a public highway.”
People who show no outward signs of drunkenness raise their crash chances at what BAC or higher?
0.05%. A drinker who walks straight and talks clearly still brakes late and wanders out of the lane. South Dakota Driver License Manual, p.21: “Even though they compensate and cover up their drunkenness, they increase their chances of being in a crash if they drive with a BAC of 0.05% or higher.”
What does each THINK sign along a South Dakota state highway mark?
One person killed in a crash there. Seeing a row of those signs at a curve tells you people died there, so slow down and pay attention. South Dakota Driver License Manual, p.21: “One sign is erected on the state highway for each person killed in the crash, with each sign mounted on a separate post near the edge of the right-of-way.”
What can over-the-counter cold and allergy drugs do to a driver?
Make you drowsy and affect driving. A cold pill taken before work can leave you half asleep at the wheel by the first stoplight. South Dakota Driver License Manual, p.21: “Over-the-counter drugs taken for headaches, colds, hay fever, or other allergies or those to calm nerves can make you drowsy and affect your driving.”
Which prescription drugs does the manual name as affecting safe driving?
Antidepressants, pain reducers, sleep aids. A sleep aid still working in the morning slows you like a drink and you miss the car braking ahead. South Dakota Driver License Manual, p.22: “Prescription drugs, such as antidepressants, pain reducers, sleep aids, and sedatives, have an impact on driving safely.”
According to the manual, how can strong emotions affect driving?
They interfere with thinking and attention. An angry driver stops watching the road and starts chasing the car that cut them off. South Dakota Driver License Manual, p.22: “They can increase the risk by interfering with your ability to think, creating a lack of attention and interrupting your ability to process information.”
What does the manual say about small problems like a stiff neck or sore leg?
They can affect your driving. A stiff neck stops you turning to check the blind spot, and you merge into a car. South Dakota Driver License Manual, p.22: “Even little problems like a stiff neck, a cough, or a sore leg can affect your driving.”
How often does the manual say to check tire pressure with a gauge?
Once a month. An underinflated tire heats up, wears fast and can blow out at highway speed. South Dakota Driver License Manual, p.23: “Remove the cap from the valve stem and use the pressure gauge to check the tire pressure (make sure you check when they are cold).”
In the penny test, what tells you a tire is too worn to drive on?
You can see all of Lincoln’s head. Bald tires cannot push water away, so the car slides on a wet road and will not stop. South Dakota Driver License Manual, p.23: “If yes, your tires are too worn—do not drive on them, and make sure to get them replaced.”
Whose duty is it to make sure a vehicle is safe to operate?
The driver of the vehicle. A car with bad brakes or bald tires can turn an easy stop into a crash. South Dakota Driver License Manual, p.23: “It is the duty of drivers to make certain that the vehicles they drive are safe to operate.”
What does the manual say never to do because of exhaust gases?
Run the motor in a closed garage. Exhaust gas has no smell you can trust, and people die asleep in a car running in a garage. South Dakota Driver License Manual, p.24: “Gases from a leaky exhaust can cause death inside of a vehicle in a very short time.”
What is the lowest light transmittance allowed for the windows beside the driver?
At least 35%. Dark front windows hide a pedestrian at night and keep the driver from seeing cross traffic. South Dakota Driver License Manual, p.24: “Windshields, side wings or side windows forward of, either side of, or adjacent to the operator’s seat, may not be covered with one-way glass, adhesive film, or other application that reduces the light transmittance to a level below 35%.”
Before driving on a frosty morning, what does the manual say to clear?
All windows: front, sides and back. A peephole scraped in the frost leaves the car beside you or the walker behind you unseen. South Dakota Driver License Manual, p.24: “Clear snow, ice, or frost from all windows before driving.”
Why does the manual warn against slouching in the driver seat?
It weakens the restraint system. A slouched body slides under the belt in a crash and hits the dashboard. South Dakota Driver License Manual, p.25: “Improper seating positions, such as slouching, can result in reduced effectiveness of the vehicle’s restraint system.”
How should you adjust the inside rearview mirror?
So it frames the rear window. A rearview mirror aimed at the headliner hides the car closing fast behind you. South Dakota Driver License Manual, p.25: “Adjust the rearview mirror so that it frames the rear window.”
Under the front-seat rule, who in the vehicle must wear a seat belt?
The driver and front-seat passengers. An unbelted body keeps flying forward in a crash until the windshield or dashboard stops it. South Dakota Driver License Manual, p.25: “In South Dakota, it is illegal to drive or to be a front-seat passenger without wearing seatbelts.”
Besides drivers and front-seat passengers, who must wear safety restraints under South Dakota law?
Children under the age of 18. A teen in the back seat without a belt becomes a missile that hits the people in front. South Dakota Driver License Manual, p.26: “The law requires that all operators, front seat passengers and children under the age of 18 wear appropriate safety restraints while the vehicle is in motion.”
How are air bags designed to work best?
Together with seat belts. An unbelted body thrown forward meets the air bag too early and too close, and is hurt by it. South Dakota Driver License Manual, p.26: “Air bags are supplemental restraints and are designed to work best in combination with seatbelts.”
Up to what age should children sit in the rear seat to avoid air bag injury?
12 and younger. An air bag bursts open with enough force to break a small child’s neck. South Dakota Driver License Manual, p.26: “Children age 12 and younger should sit in the rear seat of the vehicle to avoid injury from an air bag in the event of a crash.”
Which way does a baby ride in an infant car carrier?
Facing backwards. A baby facing forward in a crash has its fragile neck snapped by the sudden stop. South Dakota Driver License Manual, p.26: “The child rides facing backwards with its entire head and body cushioned by impact-absorbing materials.”
Under SDCL 32-37-1, how must an operator secure a child under 5?
In a child passenger restraint system. A small child held only by an adult belt slides out of it and is thrown in a crash. South Dakota Driver License Manual, p.27: “Any operator of any passenger vehicle transporting a child under five years of age on the streets and highways of this state shall properly secure the child in a child passenger restraint system according to its manufacturer's instructions.”
Under SDCL 32-37-1.2, when must a driver aged 14 to under 18 wear a seat belt?
Always when the vehicle is in motion. New teen drivers crash most often, and a belt is what keeps them in the seat when they do. South Dakota Driver License Manual, p.27: “Any operator of any passenger vehicle operated on a public street or highway in this state, who is at least fourteen years of age and under eighteen years of age, shall wear a properly adjusted and fastened safety seatbelt system, required to be installed in the passenger vehicle if manufactured pursuant to Federal Motor Vehicle Safety Standard Number 208 (49 C.F.R. 571.208) in effect January 1, 1989, always when the vehicle is in motion.”
According to the car seat guide, infant seats are for children up to what weight?
20 pounds. A tiny baby facing forward has its head thrown forward with force its neck cannot take. South Dakota Driver License Manual, p.27: “For children up to 20 pounds”
Which of these makes a car seat used incorrectly?
A top tether strap is present but not used. A seat that is not belted to the car flies loose in a crash with the child strapped in it. South Dakota Driver License Manual, p.28: “A top tether strap is present but not used”
How does the manual answer the belief that seat belts can trap you in a car?
A belt takes less than a second to undo. A driver knocked out by hitting the windshield cannot climb out of a burning car. South Dakota Driver License Manual, p.28: “It takes less than a second to undo a seatbelt.”
When is a load considered secure?
When nothing can slide, shift, fall or fly off. A loose mattress or ladder flying off a pickup lands in front of the car behind. South Dakota Driver License Manual, p.28: “A load must be securely fastened and is only considered secure when nothing can slide, shift, fall, or sift onto the roadway or become airborne.”
What does the manual call the best way to prolong your car’s life and save fuel?
Use it as little as possible. Each extra trip adds miles and time in traffic, where most fender-benders happen. South Dakota Driver License Manual, p.28: “The best way to prolong the life of your car and save on fuel is to use it as little as possible.”
What should you do just before you turn the key to start the engine?
Put your right foot on the brake and check for park. A car started in gear can lurch forward into a wall, a parked car, or a child walking past. South Dakota Driver License Manual, p.29: “To start the engine, place your right foot on the brake pedal and check the gear selector lever for park.”
How should you place your foot when you accelerate from a stop?
Top of the foot on the pedal, heel on the floor. Stamping on the gas makes the car leap ahead before you have time to steer or react. South Dakota Driver License Manual, p.29: “Accelerate gradually and smoothly with the top of your foot on the pedal and the heel of your foot on the floor.”
What is the first step the manual gives for stopping the vehicle?
Check your mirrors for traffic behind you. A driver who brakes without looking back may be hit from behind by a car that was following too close. South Dakota Driver License Manual, p.29: “Check your mirrors for traffic to the rear of the vehicle.”
Which way do you turn the steering wheel when backing up?
Toward the direction you want the vehicle to move. Turning the wheel the wrong way while backing sends the rear of the car into the thing you meant to miss. South Dakota Driver License Manual, p.29: “The steering wheel is always turned in the direction you want the vehicle to move, whether moving forward or in reverse.”
Where should your hands be on the steering wheel?
At the 3 and 9 o’clock positions. Hands bunched together at the top give you little leverage when you must swerve suddenly. South Dakota Driver License Manual, p.29: “Both hands should be placed on the outside of the steering wheel on opposite sides, at the 3 and 9 o’clock positions, to maintain control of the vehicle.”
According to the manual, what is the best way not to speed?
Know how fast you are going by checking often. A driver who goes by feel can be well over the limit without knowing it when a child steps out. South Dakota Driver License Manual, p.29: “The best way not to speed is to know how fast you are going.”
When should you first check behind the vehicle before backing up?
Before you get into the vehicle. A small child behind a car is out of sight from the seat and can be run over in a driveway. South Dakota Driver License Manual, p.30: “Check behind the vehicle before you get in.”
What does the manual say about having the right-of-way?
No driver should assume it is theirs automatically. A driver who goes because it is his turn can still be hit by someone who never saw him. South Dakota Driver License Manual, p.31: “Although yielding right-of-way rules provide a guide to determine who should yield the right-of-way, no one should assume he or she automatically has the right-of-way.”
In a funeral procession, which vehicle must obey traffic signs and signals?
The first vehicle. Breaking up a procession at a light separates mourners from the hearse on roads they may not know. South Dakota Driver License Manual, p.31: “Only the first vehicle in a funeral procession must obey traffic signs and signals.”
Which of these counts as a traffic control device under the manual?
Directions from a school crossing guard. A driver who ignores a crossing guard because the light is green can drive into a line of children. South Dakota Driver License Manual, p.31: “Traffic control devices include traffic signals, signs, pavement markings, and directions provided by law enforcement, highway personnel, and school crossing guards.”
How are the lenses arranged on a pedestrian hybrid beacon?
Two red lenses above a single yellow lens. A driver who does not know this signal may not stop for the walker who just pushed the button. South Dakota Driver License Manual, p.31: “The beacon head consists of two red lenses above a single yellow lens.”
On a horizontal traffic light, where is the red light?
On the left. A driver blinded by sun glare can still read a light by where the lit lamp sits. South Dakota Driver License Manual, p.32: “In some metropolitan areas, traffic lights are horizontal, instead of vertical, and the red light is on the left, the yellow light is in the middle, and the green light is on the right.”
At a steady red light, when may you go straight ahead?
After it turns green and crossing traffic is clear. Creeping on red into the crossing puts you in front of traffic that has the green. South Dakota Driver License Manual, p.32: “A steady RED traffic light means come to a complete stop.”
What must you do when a steady yellow light comes on as you approach?
Stop if it is safe to do so. Speeding up to beat a yellow is how drivers end up in the middle of the crossing on red. South Dakota Driver License Manual, p.32: “A steady YELLOW traffic light means the traffic light is about to change to red.”
You are stopped and the light turns green. What must you do first?
Let crossing traffic clear the intersection. Jumping the green catches the car that ran the end of the yellow from the side. South Dakota Driver License Manual, p.32: “If you are stopped and then the light turns green, you must allow crossing traffic to clear the intersection before you proceed.”
The traffic signal ahead is completely dark. What must you do?
Stop as you would at a stop sign. Rolling through a dark signal at speed meets cross traffic that also thinks it has the road. South Dakota Driver License Manual, p.32: “Red or completely unlighted traffic signal shall stop in the same manner as if the vehicle were at a stop sign.”
What do warning signs usually look like?
Yellow with black symbols, diamond shaped. Missing a warning sign means meeting the sharp curve or hidden crossing at full speed. South Dakota Driver License Manual, p.33: “These signs are usually yellow with black lettering or symbols and are diamond shaped.”
What does this sign tell you is ahead?
A road that crosses yours. A car can shoot out of the side road into your path before you can stop. South Dakota Driver License Manual, p.33: “Cross Road Ahead Side Road Ahead T-Intersection Y-Intersection Curvy Road”
What does this sign tell you to do?
Slow down, look and listen for a train. A train cannot stop or swerve, and a car caught on the tracks loses every time. South Dakota Driver License Manual, p.33: “The sign cautions to slow down, look, and listen for a train or railroad vehicle, and to be prepared to stop if a train is approaching.”
Why check for more than one train at every railroad crossing?
Not every multi-track crossing posts a tracks sign. A driver who waits for one train to pass and then goes can be hit by a second train on the next track. South Dakota Driver License Manual, p.34: “Not all highway-railroad grade crossings with more than one train track will have these signs though, so it is important to check for more than one track, train, or railroad vehicle at each highway-railroad grade crossing.”
What is the number on the Emergency Notification System sign for?
Reporting problems at the crossing to the railroad. A car stalled on the tracks can be reported so the railroad warns the train before it arrives. South Dakota Driver License Manual, p.34: “Every crossing has an emergency dispatch phone number for contacting the railroad to report problems with the crossing, tracks or train.”
What do work zone signs usually look like?
Orange with black letters or symbols. Missing a work zone sign means meeting a worker or a lane closure at full highway speed. South Dakota Driver License Manual, p.34: “These are generally diamond or rectangular shaped and orange with black letters or symbols.”
Who may be on or near the road past this sign?
People working on the road. A worker beside a fast lane can be struck by a driver who never slowed down. South Dakota Driver License Manual, p.34: “Flagger Ahead Workers Ahead Road Construction One Lane Road Detour”
What do regulatory signs tell you?
Specific laws you must obey. A driver who treats these signs as advice can turn into one-way traffic or park where it is banned. South Dakota Driver License Manual, p.35: “These signs talk about specific laws that you must obey, such as rules for traffic direction, lane use, turning, speed, parking, and other special situations.”
Which move does this sign forbid?
Turning left. Turning against this sign can put you across oncoming lanes with no gap for you. South Dakota Driver License Manual, p.35: “No Left Turn No Right Turn No U-Turn Straight Left Turn Only”
If the minimum posted speed on a road is too fast for you, what should you do?
Use another road. A car crawling on a fast highway gets rear-ended by drivers who come up on it too quickly. South Dakota Driver License Manual, p.35: “If the minimum posted speed is too fast for you, you should use another road.”
After stopping at a stop sign, what must you do before going?
Look all ways and yield the right-of-way. A driver who stops but then pulls out without looking both ways is hit from the side. South Dakota Driver License Manual, p.35: “Look for crossing vehicles and pedestrians in all directions and yield the right-of-way.”
What does the manual say about driving on a one-way street?
Never drive the wrong way on it. A car going the wrong way on a one-way street meets traffic head-on that never expected it. South Dakota Driver License Manual, p.35: “Never drive the wrong way on a one-way street.”
A vehicle ahead has a reflective orange triangle on its rear. How fast is it going?
Less than 25 mph. Coming over a hill at highway speed onto a tractor doing 15 mph leaves very little room to stop. South Dakota Driver License Manual, p.36: “A reflective orange triangle on the rear of a vehicle means it is travelling less than 25 mph.”
What colors are guide signs?
Green, brown, or blue. Missing a guide sign on an unfamiliar road can send you miles the wrong way at night. South Dakota Driver License Manual, p.36: “These signs are square or rectangular and are green, brown, or blue.”
What does this sign show you?
The way to a place you may be going. A driver who misreads a destination sign may brake or swerve late for an exit or turn. South Dakota Driver License Manual, p.36: “They show directions and distance to various locations such as cities, airports, state lines, or to special areas such as national parks, historical areas or museums.”
Which of these is a job of pavement markings?
Showing where you must stop. A driver who ignores the lines can drift into a turn lane or stop past the place meant for stopping. South Dakota Driver License Manual, p.36: “They are used to divide lanes, tell you when you may pass other vehicles or change lanes, tell you which lanes to use for turns, define pedestrian walkways, and show where you must stop for signs or traffic signals.”
A pedestrian has just stepped into a crosswalk in front of you. What must you do?
Yield to the pedestrian. A person on foot in a crosswalk has no shield at all if a car keeps going. South Dakota Driver License Manual, p.37: “You must yield to pedestrians entering or in a crosswalk.”
What is a shared center lane for?
Left turns by traffic from either direction. Using the center lane to pass can meet a car coming the other way to turn into the same spot. South Dakota Driver License Manual, p.37: “Shared center lanes are reserved for making left turns (or U-turns when they are permitted) by vehicles traveling in either direction.”
What should you search for at the corners before you make a turn?
Traffic controls, pedestrians, and other vehicles. A walker stepping off the far corner is easy to miss if you only watch the car in front of you. South Dakota Driver License Manual, p.38: “Search all corners for traffic controls, pedestrians, other vehicles, and signal your intentions.”
From what part of your lane should you make a right turn?
The right-most portion of the lane. Turning from the middle of the lane leaves a gap a bike or car can slip into beside your right door. South Dakota Driver License Manual, p.38: “Always turn right from the right-most portion of the lane.”
From what part of your lane should you make a left turn?
The left-most portion of the lane. Turning from the right edge of the lane cuts across the car that is going straight beside you. South Dakota Driver License Manual, p.38: “Always turn left from the left-most portion of the lane.”
When two or more lanes turn at once, what must you do during the turn?
Stay in your lane until the turn is complete. Two cars turning side by side touch when one drifts into the other lane halfway through the corner. South Dakota Driver License Manual, p.38: “Stay in that lane until the turn is completed.”
When is a two-point turnabout used?
When you cannot drive around the block. Turning around in the open road blocks both lanes at once while cars come from each way. South Dakota Driver License Manual, p.38: “In this type of turn, a street, alley, or driveway is used to reverse the direction you are traveling when it is not practical or possible to drive around a block.”
When should you use a three-point turnabout (Y-turn)?
When the road is too narrow for a U-turn. A three-point turn stops across both lanes, so doing it when you could go around the block blocks traffic for nothing. South Dakota Driver License Manual, p.38: “Use this type of turnabout only when the road or street is too narrow to make a U-turn and it’s not possible to go around the block.”
When may you make a U-turn where a police officer is directing traffic?
Only when the officer tells you to make one. An officer waving cars through does not expect a car to swing around in the middle of them. South Dakota Driver License Manual, p.39: “At any intersection where a police officer is controlling traffic unless the officer instructs you to make a U-turn.”
What should you do at every intersection, even with the right-of-way?
Reduce speed and search for hazards. A driver running the red light still hits you, even though the green was yours. South Dakota Driver License Manual, p.39: “Do not rely on other road users to obey traffic control signal devices or signs.”
Which way does traffic move in a roundabout?
One way, counterclockwise. Entering against the flow puts you nose to nose with every car coming around the circle. South Dakota Driver License Manual, p.39: “By keeping traffic moving one-way in a counterclockwise direction, there are fewer conflict points and traffic flows more smoothly.”
What is the truck apron in a roundabout for?
The rear wheels of large trucks as they turn. Big trucks swing their back wheels inside their front ones, and without room they would roll over the curb. South Dakota Driver License Manual, p.39: “A truck apron is a paved area on the inside of the roundabout for the rear wheels of large trucks to use when turning, sometimes referred to as off-tracking.”
As you enter a roundabout, which traffic must you yield to?
Traffic on your left already in the circle. A car already circling cannot stop for you, and pulling out in front of it causes a side crash. South Dakota Driver License Manual, p.40: “Yield to traffic on your left already in the roundabout”
An emergency vehicle comes up before you have entered a roundabout. What do you do?
Pull over and let it pass. Entering in front of a fire truck puts you in its way inside a circle where it cannot go around you. South Dakota Driver License Manual, p.40: “If you have not entered the roundabout, pull over and allow emergency vehicles to pass”
In a multi-lane roundabout, when should you choose your lane?
Before you enter, from the signs and arrows. Choosing a lane after you are inside forces you to cut across a car beside you to reach your exit. South Dakota Driver License Manual, p.40: “As you get closer to the roundabout entrance, it is very important to observe the signs and arrows to determine which lane to use before entering a roundabout.”
What makes the weaving area of a cloverleaf interchange risky?
Cars enter at the same time others exit. Two cars swapping places on a short stretch of road can sideswipe each other if neither is watching. South Dakota Driver License Manual, p.41: “Here traffic is trying to enter the interstate lanes at the same time that other traffic is trying to exit.”
In a diverging diamond interchange, how do left turns onto the freeway work?
They are free flow, with no stop. A driver who stops at the left-turn ramp expecting a light gets hit by the car behind that does not. South Dakota Driver License Manual, p.42: “All left turns onto the freeway are free flow, meaning vehicles do not stop to access the ramp.”
What does South Dakota say about crossing an interstate median?
You must not cross it. Turning across the median puts you sideways in front of traffic coming at highway speed. South Dakota Driver License Manual, p.42: “You must not cross the median of an interstate highway.”
When must you stop for a school bus?
When its red lights flash or its stop arm is out. Children getting off the bus often cross in front of it, out of sight of passing cars. South Dakota Driver License Manual, p.43: “You must always stop for a school bus that has its red lights flashing or its stop arm extended at all times unless the roadway is separated by a physical barrier.”
Parking along a road with a curb, where should your vehicle be?
As close to the curb as possible. A car left sticking out into the lane gets clipped by the next driver who does not see it in time. South Dakota Driver License Manual, p.43: “When parking along the roadway, park the vehicle as far away from the flow of traffic as possible.”
Besides staying clear of travel lanes, what must be true of where you park?
Drivers from both directions can see your car. A car parked just past a blind curve is found by the next driver only when it is too late to steer around. South Dakota Driver License Manual, p.43: “Whenever you park, be sure it is in a place far enough from any travel lane to avoid interfering with traffic and that the vehicle is visible to others approaching from either direction.”
Parking facing uphill next to a curb, which way do you turn your wheels?
Sharply to the left. If the car starts to roll, the back of the front tire catches the curb and stops it. South Dakota Driver License Manual, p.43: “Turn the wheels sharply to the left if there is a curb and facing uphill.”
Pulling into an angle parking space, how far do you go before centering the car?
Until the vehicle reaches the middle of the space. Turning in too early drags your side along the car parked next to the space. South Dakota Driver License Manual, p.44: “Move forward slowly, turning the steering wheel left or right as appropriate, until the vehicle reaches the middle of the space”
To begin parallel parking, where do you stop?
Even with the car ahead, about 2 feet away. Stopping too far out leaves you backing in at a wide angle that ends up far from the curb. South Dakota Driver License Manual, p.44: “Stop even with the vehicle in the parking space ahead and about 2 feet away from it.”
After you signal a lane change, what should you do before steering over?
Look again toward the lane you are moving into. A car can move into the gap while you were looking at your mirror, so a last look catches it. South Dakota Driver License Manual, p.45: “Identify a gap in traffic, signal, and then look again in the direction of the lane change.”
What sets where your vehicle's blind spots are?
The vehicle's design and where its roof pillars are. A car beside your back corner can vanish from every mirror, and changing lanes on it means a side crash. South Dakota Driver License Manual, p.45: “The design of the vehicle and the position of the “pillars” that support the roof will determine the location of the blind spots.”
On a multi-lane road, what is the safest speed choice?
Keep pace with the other traffic. Every car you pass is one more chance that it drifts into you or that you misjudge the gap. South Dakota Driver License Manual, p.45: “On a roadway with multiple lanes going in the same direction, crashes involving two or more vehicles often happen when drivers go faster or slower than other vehicles.”
What is the acceleration lane on an entrance ramp for?
To reach the speed of traffic before merging. Merging well below traffic speed makes the cars in the lane brake hard or swerve around you. South Dakota Driver License Manual, p.45: “Use the lane to reach the speed of other vehicles before merging into traffic.”
Leaving a highway by an exit ramp, when should you start to slow down?
Once you are on the exit ramp. Braking in the travel lane before the ramp catches the driver behind you at full speed. South Dakota Driver License Manual, p.45: “If the road on which you are traveling has exit ramps, do not slow down until you move onto the exit ramp.”
Where should you watch for large trucks and small cars losing speed?
On steep grades and when they enter traffic. Coming over a rise to find a loaded truck crawling uphill leaves you braking hard with cars behind. South Dakota Driver License Manual, p.45: “Watch for large trucks and small cars on steep grades or when they are entering traffic.”
Why should you slow down where people gather or traffic is heavy?
Room to move is limited, so you need time to react. In a crowded lot a car can back out or a child can step out with only a moment's warning. South Dakota Driver License Manual, p.46: “Wherever people gather or traffic is heavy, room to move is limited.”
On a multi-lane road, which lane is meant for passing slower vehicles?
The left-most lane. Drivers expect faster cars on their left, so a pass from another lane comes as a surprise. South Dakota Driver License Manual, p.46: “On multi-lane roads, the left-most lane is intended to be used for passing slower vehicles.”
An officer signals you to stop. How do you show you have seen them?
Turn on your right turn signal. An officer who sees no sign that you noticed may think you are trying to get away or are impaired. South Dakota Driver License Manual, p.46: “Acknowledge the officer’s presence by turning on your right turn signal.”
What does the manual tell you to do with your eyes while driving?
Keep them moving and searching. A driver who stares at one spot misses the child stepping off the curb until it is too late to brake. South Dakota Driver License Manual, p.48: “Avoid staring and keep your eyes moving and searching for possible problems.”
Ideally, how far ahead of the car should you try to look?
20 to 30 seconds. Looking only at the bumper ahead leaves no time to see a stalled truck before you must slam the brakes. South Dakota Driver License Manual, p.48: “Ideally, you should try to look at what is occurring 20 to 30 seconds in front of the car.”
Which of these does the manual count as an intersection?
A shopping center or parking lot entrance. A driver who thinks only big crossroads count rolls past a driveway just as a car backs out. South Dakota Driver License Manual, p.48: “Intersections are any place where traffic merges or crosses.”
When does the manual say you need to check traffic behind you more often?
When traffic is heavy. In thick traffic a car can close in behind you fast, and you will not know until it hits you. South Dakota Driver License Manual, p.49: “You will need to check more often when traffic is heavy.”
How far before an intersection must you signal a turn?
At least 100 feet. A driver who flicks the signal at the corner gives the car behind no time to slow, and it rear-ends you. South Dakota Driver License Manual, p.49: “At least 100 feet from an intersection.”
How long may you take your eyes off the road ahead to check traffic?
No more than an instant. While you stare into the mirror, the car ahead can stop short and you plow into it. South Dakota Driver License Manual, p.49: “Do not take your eyes off the road ahead for more than an instant.”
In a shopping center, what kind of parking space does the manual suggest?
One you can drive through to leave forward. Backing out of a busy lot is when small children behind the car go unseen and get hit. South Dakota Driver License Manual, p.49: “In a shopping center, try to find a parking space you can drive through, so you can drive forward when you leave.”
In which months should South Dakota drivers be most alert for deer?
October and November. In the fall deer cross roads far more often, and a deer through the windshield can kill. South Dakota Driver License Manual, p.50: “Be especially alert for deer in October and November, the months with the highest number of car/deer crashes.”
When should you slow down for a curve?
Before you enter the curve. Braking hard halfway through a bend can make the tires slide, and the car runs off the outside edge. South Dakota Driver License Manual, p.50: “Always reduce speed before entering the curve to a safe speed (a speed that allows you to apply slight and constant acceleration through the curve).”
When should you reduce speed for rain, snow, sleet, or ice?
At the first sign of it. The first minutes of rain lift oil off the road, and a car at full speed slides through the stop sign. South Dakota Driver License Manual, p.50: “Reduce speed at the first sign of rain, snow, sleet, or ice.”
What is the best way to avoid hydroplaning?
Slow down on wet roads. Riding on water, the front tires stop steering, and the car keeps going where it was pointed. South Dakota Driver License Manual, p.50: “The best way to avoid traction loss from hydroplaning is to slow down in the rain or when the road is wet with pooled water or water puddles.”
Total stopping distance is measured from when to when?
From when you realize you must stop until the car stops. A driver who thinks the car stops the moment they see trouble leaves too little room and hits the car ahead. South Dakota Driver License Manual, p.50: “Total stopping distance is the distance the vehicle travels, in ideal conditions, from the time you realize you must stop until the vehicle stops.”
What does a bigger space cushion give you?
More time to react to others. With no room around the car, a sudden stop or swerve by someone else leaves you nowhere to go. South Dakota Driver License Manual, p.51: “The more space you allow between your vehicle and other roadway users, the more time you must react.”
What minimum following distance does South Dakota tell you to keep?
4 seconds. Following closer leaves no time to react, and you crash into the car ahead when it brakes. South Dakota Driver License Manual, p.51: “Always try to keep a minimum following distance of 4 seconds between your car and the vehicle in front.”
Why must you leave more space ahead on slippery roads?
You need more distance to stop. On ice the car ahead stops in its distance, but yours slides on and on into its trunk. South Dakota Driver License Manual, p.51: “Because you need more distance to stop the vehicle on slippery roads, you must leave more space in front of you.”
Where should you keep as much space as possible?
Between you and oncoming traffic. Hugging the center line leaves an oncoming car that drifts a foot no way to miss you head-on. South Dakota Driver License Manual, p.52: “Try to keep as much space as possible between you and oncoming traffic.”
How can you help the driver behind you keep a safe distance?
Keep a steady speed and signal early. Sudden speed changes catch the driver behind off guard and cause rear-end crashes. South Dakota Driver License Manual, p.52: “However, you can help a driver behind maintain a safe distance by keeping a steady speed and signaling in advance when you must slow down or turn.”
As a rule, how many vehicles should you pass at one time?
One vehicle, on the left side. Trying to pass a line of cars keeps you in the oncoming lane until a car appears ahead. South Dakota Driver License Manual, p.53: “As a rule, pass only one vehicle at a time and pass on the left side.”
How close to a hill or curve may you start to pass?
Not within one-third of a mile. A car hidden beyond the crest meets you head-on in its own lane. South Dakota Driver License Manual, p.53: “This means you should not start to pass if you are within one-third of a mile of a hill or curve.”
Which of these is someone who may not be able to see you?
A driver with steamed-up windows. A driver peering through a frosty windshield pulls out right in front of you without knowing you are there. South Dakota Driver License Manual, p.53: “Drivers whose windows are covered with snow/ice or are steamed-up”
Joggers are on the road edge and a truck is coming. How do you separate the risks?
Adjust speed to meet them one at a time. Meeting a truck and joggers at the same spot leaves no room if either one moves toward you. South Dakota Driver License Manual, p.54: “To separate risks, decide to speed up or slowdown in order to pass the joggers before or after the truck.”
Oncoming cars are on your left and a child on a bike is on your right. Which gets more room?
The child on the bike. Giving equal room to a wobbling child and steady cars leaves too little for the child. South Dakota Driver License Manual, p.54: “When you cannot separate risks and must deal with two or more at the same time, compromise by giving the most room to the worst danger.”
When should you turn on your headlights to help others see you?
Whenever you have trouble seeing others. If you can barely see other cars, they can barely see you, and they pull out into your path. South Dakota Driver License Manual, p.54: “Remember to turn on the headlights whenever you have trouble seeing others.”
Within what distance of an oncoming vehicle must you dim your high beams?
500 feet. High beams in an oncoming driver's eyes can blind them, and they drift across the line into you. South Dakota Driver License Manual, p.55: “Dim the high beams whenever you come within 500 feet (about a one block distance) of an oncoming vehicle.”
Pedestrians are crossing at an intersection in front of you. What should you do?
Yield to them and do not honk. Honking at a walker who has the right to cross can startle them into stepping back into your path. South Dakota Driver License Manual, p.55: “Do not use the horn in these instances but do yield the right-of-way.”
Your car is in trouble and cannot get fully off the road. Where should you stop?
Where others have a clear view of it. A car stalled just past a crest is hit by drivers who top the hill with no time to stop. South Dakota Driver License Manual, p.55: “Try to stop where other drivers have a clear view of the vehicle if you cannot get completely off the road.”
You are beside and slightly behind another car. What should you do?
Speed up or drop back. Sitting off another car's rear corner, you vanish from its mirrors just as it changes lanes into you. South Dakota Driver License Manual, p.56: “Either speed up or drop back so the other driver can see your vehicle more easily.”
Should you signal when you do not see anyone else around?
Yes, someone may be there unseen. The driver you did not see, in a blind spot or a driveway, is the one who pulls into your path. South Dakota Driver License Manual, p.56: “Signal even when you do not see anyone else around.”
An antique vehicle that may lack turn signals is one made before what date?
July 1, 1958. In bright sun your flashing signal can go unseen, and the driver behind is surprised by your turn. South Dakota Driver License Manual, p.56: “An example would be when bright sunlight can make it hard for other drivers to see flashing turn signals, or when driving an antique vehicle (one manufactured before July 1, 1958) that may not be equipped with turn signals.”
What three options does the manual give for avoiding a crash or reducing its impact?
Braking, steering, or accelerating. A driver who only knows how to stomp the brake can slide straight into the car that a quick swerve would have missed. South Dakota Driver License Manual, p.57: “There are three options to avoid a crash or to reduce its impact. These options are braking, steering, or accelerating.”
What does an anti-lock braking system (ABS) let you do in a hard stop?
Stop without skidding and keep steering control. Wheels that lock up stop turning, so the car slides where it was headed and the steering wheel stops working. South Dakota Driver License Manual, p.57: “The ABS will allow you to stop the vehicle without skidding and keep steering control.”
How should you hold the steering wheel when you must swerve around a problem?
A good grip with both hands on it. One hand on the wheel cannot turn it fast or far enough, and the car can spin out mid-swerve. South Dakota Driver License Manual, p.57: “Make sure to have a good grip with both hands on the steering wheel.”
When does the manual say accelerating may be the way to avoid a crash?
When a vehicle is about to hit you from behind. Braking when a car is bearing down on your rear bumper only makes the hit harder; moving ahead can take you out of its path. South Dakota Driver License Manual, p.57: “This may happen when another vehicle is about to hit you from behind or on the side.”
Your vehicle begins to skid. What should you do with the pedals?
Release pressure from the brake or gas. Holding the brake down in a skid keeps the tires sliding, and the driver cannot steer out of it. South Dakota Driver License Manual, p.57: “Release pressure from the brake or accelerator.”
Your right wheels drop off the edge of the pavement. What should you do?
Slow down gradually, then turn back on. Yanking the wheel at speed to climb back over a drop-off can throw the car across the lane into oncoming traffic. South Dakota Driver License Manual, p.57: “If the vehicle leaves the paved road surface, slow down gradually, when safe to do so, and turn back onto the pavement.”
What does the manual say greatly reduces the chance of a vehicle problem while driving?
Following the maintenance schedule in the owner's manual. Worn brakes and bald tires give little warning before they fail, often at highway speed. South Dakota Driver License Manual, p.58: “You should follow the recommended maintenance schedule listed in the vehicle owner’s manual.”
The brake warning light comes on before you leave. What should you do?
Do not drive the vehicle. Setting out with brakes the car itself says are failing can leave you rolling through a stop sign with nothing to stop you. South Dakota Driver License Manual, p.58: “A brake warning light will tell you the brakes are not working properly.”
What happens when a front tire blows out?
The car pulls sharply toward the blowout. A driver not ready for the hard tug can be pulled off the road or into the next lane in a second. South Dakota Driver License Manual, p.58: “If a front tire blows out, the vehicle will pull sharply in the direction of the blowout.”
The engine shuts off while you are driving. What is true of the steering?
It may be hard, but you can still turn it. A driver who thinks the wheel has locked may freeze and let the car drift into traffic. South Dakota Driver License Manual, p.58: “Keep a strong grip on the steering wheel. Be aware that the steering wheel may be difficult to turn, but you can still turn it.”
Which gear should you shift to when the accelerator is stuck?
Neutral. In gear, the stuck engine keeps pushing the wheels; in neutral it can race without moving the car. South Dakota Driver License Manual, p.58: “If the vehicle is accelerating out of control:”
How far behind a broken-down vehicle should you place emergency flares?
200 to 300 feet. Without a warning far enough back, a fast driver comes over a rise and has no time to change lanes. South Dakota Driver License Manual, p.58: “Place emergency flares about 200 to 300 feet behind the vehicle, giving other drivers some time to change lanes if necessary.”
Your headlights suddenly go out at night. What should you try first?
Try the headlight switch a few times. A switch that only bumped loose can bring the lights back in a second, before you are driving blind. South Dakota Driver License Manual, p.58: “Try the headlight switch a few times.”
You drive past a crash you were not part of, and rescue crews are already there. What should you do?
Keep moving and watch for people. Cars stopping to look at a wreck cause new crashes behind them and slow down the help that is coming. South Dakota Driver License Manual, p.59: “Do not stop at an accident unless you are involved or if emergency help has not yet arrived.”
What must you do if you are involved in an accident?
Stop at the scene of the accident. A driver who keeps going leaves hurt people without help and breaks the law at the same time. South Dakota Driver License Manual, p.59: “If you are involved in an accident, you must stop.”
What does a basic vehicle emergency kit contain, according to the manual?
Flares, first aid supplies, and basic tools. A driver stranded at night with nothing to warn traffic or treat a cut is stuck waiting in danger. South Dakota Driver License Manual, p.59: “These kits have emergency flares, first aid supplies, and basic tools.”
What is the most important thing you can do to lessen injuries in a crash you cannot avoid?
Use the lap and shoulder belts. Without a belt your body keeps moving at full speed into the wheel, the glass, or the road. South Dakota Driver License Manual, p.59: “The most important thing you can do is to use the lap and shoulder belts.”
After a crash, your car can still move. Where should it go?
Off the road so it does not block traffic. Wrecked cars left in the lane get hit again by drivers who come around the bend too fast. South Dakota Driver License Manual, p.59: “If the vehicle can move, get it off the road so that it does not block traffic or cause another crash.”
Someone is hurt in a crash and there is a fire. What should you tell the police when they are called?
That there is a fire. Everyone at a crash may think someone else already called, and help never comes. South Dakota Driver License Manual, p.59: “Make sure the police and emergency medical or rescue squad have been called. If there is a fire, tell this to the police when they are called.”
Whose names and addresses should you get after an accident?
Everyone involved and any witnesses. Without names, nobody can later say who saw what, and an honest driver can end up blamed. South Dakota Driver License Manual, p.60: “Get the names and addresses of all people involved in the accident, and any witnesses, including injured persons.”
You damage a fence and cannot find its owner. Who should you contact?
The nearest law enforcement agency. Driving off after denting a car, even with no one watching, is leaving the scene and can bring charges. South Dakota Driver License Manual, p.60: “If you damage an unattended vehicle or other property and you cannot locate the owner, contact the nearest law enforcement agency, and leave the following information on a piece of paper where the owner can find it.”
A pedestrian guided by a dog or carrying a white cane is crossing the street. What must you do?
Come to a complete stop. A person who cannot see your car cannot step out of its way, so only your stop keeps them safe. South Dakota Driver License Manual, p.61: “When a pedestrian is crossing a street guided by a dog or carrying a white cane, come to a complete stop.”
You are next to a stopped vehicle, and you cannot see past it. What should you do?
Slow down and wait until no one is crossing in front. A stopped car can hide a person walking out in front of it, and you would reach them with no time to stop. South Dakota Driver License Manual, p.61: “When driving next to parked or stopped vehicles, pedestrians can walk out between these vehicles.”
How does the manual treat a bicycle on the roadway?
As a vehicle that follows the rules of the road. Drivers who treat a bike as a toy crowd it, cut it off, and hit the rider. South Dakota Driver License Manual, p.61: “Bicycles are considered vehicles when on roadways.”
When may you drive in a designated bicycle lane?
When entering or leaving an alley or driveway. A car in the bike lane forces riders out into fast traffic, where they get hit from behind. South Dakota Driver License Manual, p.61: “Do not stop, park, or drive on a designated bicycle path or lane unless entering or leaving an alley or driveway, performing official duties, directed by a police officer, or an emergency exists.”
Why should you avoid stopping quickly with a bicyclist behind you?
Your brakes are stronger, so the bike may hit you. A rider behind a car that stops hard cannot stop as fast and runs into its back. South Dakota Driver License Manual, p.61: “A motor vehicle’s brakes are more powerful than a bicycle’s and you could cause a crash.”
On a road posted at 35 mph or less, how much space must you leave when passing a bicyclist?
At least 3 feet. A car brushing past a rider can clip the handlebars or push the bike over with its wind. South Dakota Driver License Manual, p.62: “The driver of any motor vehicle overtaking a bicycle proceeding in the same direction shall allow a minimum of a three foot separation between the right side of the driver's vehicle, including any mirror or other projection, and the left side of the bicycle if the posted limit is thirty-five miles per hour or less and shall allow a minimum of six feet separation if the posted limit is greater than thirty-five miles per hour.”
How much of the lane should you give a motorcyclist?
A full lane width. A rider needs the whole lane to dodge potholes and cars, and a car alongside leaves no room to move. South Dakota Driver License Manual, p.62: “Allow a motorcyclist a full lane width.”
An oncoming motorcycle has its turn signal flashing. What should you do?
Wait to be sure the rider will turn. A driver who pulls out because a bike is signaling gets hit when the rider goes straight. South Dakota Driver License Manual, p.62: “Do not assume a motorcycle is turning when you see its turn signal flashing.”
What is the minimum distance a bus may need to come to a complete stop?
300 feet. A car that cuts in front of a bus leaves it a fraction of the road it needs to stop. South Dakota Driver License Manual, p.62: “Buses may require a minimum of 300 feet to come to a complete stop.”
What is a No-Zone?
A blind spot around a truck or bus. A car in a truck's No-Zone can be pushed off the road by a driver who never knew it was there. South Dakota Driver License Manual, p.62: “Trucks and buses have blind spots called No-Zones.”
On which side does a truck have its larger blind spot?
The right side, behind the cab. A truck moving right into what looks like an empty lane crushes the car hidden along its side. South Dakota Driver License Manual, p.63: “Trucks have a larger blind spot on their right side starting behind the cab and extending up to the length of the truck.”
How far in front of a truck's cab can a car disappear from the driver's view?
Up to 20 feet. A car tucked close in front of a truck is below the driver's view, and the truck rolls into it. South Dakota Driver License Manual, p.56: “A car can disappear from their view while it is up to 20 feet in front of the cab, on either side of the truck (especially alongside the cab), and up to 200 feet behind!”
How far behind a large truck can its rear blind spot reach?
Up to 200 feet. If the truck stops hard while you follow close, you cannot see it coming and run into its back. South Dakota Driver License Manual, p.63: “Unlike cars, large vehicles have huge blind spots directly behind them that extend up to 200 feet.”
A truck ahead swings left before turning right. What should you do?
Wait until it has finished its turn. A car that slips into the gap on the right gets crushed between the trailer and the curb. South Dakota Driver License Manual, p.63: “When a truck or bus needs to make a right turn, the driver will sometimes swing the vehicle wide to the left to safely turn right and clear the corner of a curb or other obstruction.”
Why must you not merge in front of a truck and then slow down?
Trucks cannot slow down as quickly as cars. A car that merges and brakes in front of a loaded truck gets hit from behind. South Dakota Driver License Manual, p.63: “Do not merge in front of a truck or bus and then slow down.”
What does the manual say about parking at a runaway truck ramp?
Never park on it or in its entrance. A truck with no brakes heading for the ramp has nowhere else to go if a car is parked in it. South Dakota Driver License Manual, p.64: “Never park on the ramp or even in the entrance.”
About how far can the rear of an articulated bus swing out into traffic?
About 3 feet. A car tight beside a bending bus gets swept by the rear section as the bus turns. South Dakota Driver License Manual, p.64: “The swing on articulated buses is approximately 3 feet.”
An emergency vehicle comes up behind you with its siren and flashing lights on. What must you do?
Pull over to the edge of the road. An ambulance blocked by traffic loses minutes that the patient inside may not have. South Dakota Driver License Manual, p.64: “As a driver you must yield right-of-way to an emergency vehicle when the flashing lights and sirens are on by pulling over to the edge of the road so the emergency vehicle(s) may pass.”
You are pulled over at night. What should you turn on to help the officer?
Hazard flashers and interior lights. In a dark car the officer cannot see what you are doing, which makes the stop tense for both of you. South Dakota Driver License Manual, p.64: “Turn on the hazard flashers and, if at night, the interior lights to help the officer see that everything is in order inside the vehicle.”
Why must you take care when passing farm machinery?
The operator cannot hear vehicles coming. A tractor driver who cannot hear you may turn across the road just as you pull out to pass. South Dakota Driver License Manual, p.65: “Pass with caution and remember that the operator of the farm machinery cannot hear approaching vehicles.”
When does the manual say not to wear sunglasses while driving?
At night or on an overcast day. In low light, dark lenses hide a person or deer at the road's edge until it is too late. South Dakota Driver License Manual, p.66: “Do not wear sunglasses or colored lenses when driving at night or on an overcast day.”
Should you slow down in a work zone when no workers are present?
Yes, slow down even with no workers there. Narrow lanes and broken pavement stay after the crew leaves, and a car at full speed loses control on them. South Dakota Driver License Manual, p.66: “Always reduce your speed in a work zone, even if there are no workers present.”
What does the manual say about cruise control on slippery roads?
Never use it on slippery roads. Cruise control keeps the wheels pushing when one slips on ice, and the car spins out. South Dakota Driver License Manual, p.67: “Never use cruise control on slippery roads.”
On a road posted at 35 mph or more, how far behind a snowplow with its lights on must you stay?
At least 200 feet. A plow throws up clouds of snow and stops or turns often, and a car close behind runs into the blade. South Dakota Driver License Manual, p.67: “On roads with a posted speed limit of 35 mph or more, the law requires drivers to stay at least 200 feet behind a snowplow when its red or amber lights are on.”
You drive on a closed road and get stuck. What could happen besides a long wait for help?
A ticket and the costs of your rescue. A car stuck on a closed road in a storm may wait hours for help, with the cold setting in. South Dakota Driver License Manual, p.67: “Not only will they have a hard time getting to you, but you could also be given a ticket and be held accountable for any costs related to rescuing yourself, any passengers, or the vehicle.”
At a single-lane bridge, who generally has the right-of-way?
The first driver to reach the bridge. Two cars that both start onto a one-lane bridge meet head on in the middle with nowhere to go. South Dakota Driver License Manual, p.67: “Generally, the first driver to the bridge has the right-of-way.”
Where these come from
Every rule here is checked against South Dakota Driver License Manual, published by the South Dakota Department of Public Safety, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/SD.pdf (South Dakota Driver License Manual, Revised 11/2024, South Dakota Department of Public Safety, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SD.pages.txt (pdftotext -layout, the fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SD-exam.html (South Dakota Department of Public Safety, South Dakota Driver License Testing Information, KB0043731, read 2026-10-04; states the 80% rate; sha256 pinned under examSource)
- https://www.sd.gov/dps?id=cs_kb_article_view&sysparm_article=KB0043733 (read 2026-10-04; links the manual)