Stopping distance — Nevada Permit Test
Stopping distance on the Nevada permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.
The rules
If you double your speed, say from 30 mph to 60 mph, your braking distance becomes four times as long.
A driver who thinks twice the speed needs twice the room runs out of road and hits the car ahead.
The most important point for any driver to remember is that if you double your speed – say from 30 mph to 60 mph – your braking distance does not become twice as long.
Stopping distances on a wet highway may be more than double those on dry pavement.
Tires slide on a wet road, and a driver who brakes at the usual spot slides into the car ahead.
Stopping distances on a wet highway may be more than double those on dry pavement.
Be especially careful during the first rain of a season, because the mix of oil and water on the pavement is very dangerous.
Oil left by months of dry traffic floats up in the first rain and turns the road slick as ice.
Be especially careful during the first rain of a season because the mixture of oil and water on pavement is very dangerous.
At 30 mph, your stopping distance on ice would be 373 feet, well over the length of a football field.
A driver who brakes on ice at the usual spot slides through the stop sign and into cross traffic.
For example, if you are going 30 mph, your stopping distance on ice would be 373 feet, well over the length of a football field.
Most cars begin to lose traction and hydroplane between 35 and 55 mph in heavy rainfall.
A car riding on a sheet of water cannot steer or brake, and the driver loses control.
Most cars will begin to lose traction and hydroplane between speeds of 35 and 55 mph in heavy rainfall.
On the test
If you double your speed from 30 mph to 60 mph, how does your braking distance change?
It becomes four times as long. A driver who thinks twice the speed needs twice the room runs out of road and hits the car ahead. Nevada Driver Handbook, p.41: “The most important point for any driver to remember is that if you double your speed – say from 30 mph to 60 mph – your braking distance does not become twice as long.”
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.
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.
Where these come from
Every rule here is checked against Nevada Driver Handbook, published by the Nevada Department of Motor Vehicles, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/NV.pdf (Nevada Driver Handbook, DMV 700, March 2024, Nevada Department of Motor Vehicles, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/NV.pages.txt (plain pdftotext, the fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/NV-exam.html (Nevada DMV, Written Knowledge Test page, https://dmv.nv.gov/wtestteens.htm, read 2026-10-04; states both exam figures; sha256 pinned under examSource)
- https://dmv.nv.gov/dlhandbook.htm (read 2026-10-04; links the handbook)