Blood alcohol concentration — Wyoming Permit Test
Blood alcohol concentration on the Wyoming permit test — 8 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Three factors influence a person's BAC: the amount of alcohol consumed, the time over which it was consumed, and the person's body weight.
Knowing what raises BAC helps a driver see that two people can drink the same and not be equally impaired.
The amount or concentration of alcohol in the blood is known as Blood Alcohol Concentration or BAC. Three factors influence a person’s BAC:
12 ounces of beer, 3 to 5 ounces of wine and 1.5 ounces of 86 proof hard liquor each have about one-half ounce of alcohol.
A can of beer is not a lighter choice than a shot; counting drinks the same way stops that mistake.
Therefore, 12 ounces of beer, three to five ounces of wine, and one and one-half ounces of 86 proof hard liquor each have about one-half ounce of alcohol.
It takes 30 to 40 minutes to totally absorb the alcohol contained in a single drink, so its effects increase with time.
A driver who feels fine right after a drink may be more impaired half an hour later, out on the road.
The effects will increase with the passage of time since it takes 30 to 40 minutes to totally absorb the alcohol contained in a single drink.
Food or milk slows absorption, but two hours later it won't matter whether you drank on a full stomach.
Eating before drinking does not keep you sober; it only delays when the alcohol hits.
While food or milk in the stomach does slow absorption, two hours later it won’t matter if you had been drinking on a full stomach or not.
Time is the only significant factor in reducing BAC; showering, drinking coffee or exercising to sober up are useless.
Coffee can make a drunk person feel awake, but they are just as impaired behind the wheel.
TIME IS THE ONLY SIGNIFICANT FACTOR IN REDUCING BAC LEVELS.
The liver eliminates alcohol at a constant rate of about one drink per hour, about the same for all persons.
Knowing the slow rate shows why a few drinks keep a person unsafe to drive for hours.
It is eliminated at a constant rate and this rate is about the same for all persons, about one drink per hour.
If a heavy person and a light person drink the same amount of alcohol, the heavy person will likely have a lower BAC.
A smaller person can be over the limit on drinks a bigger friend handles, so matching drinks is a trap.
Therefore if a heavy person and a light person drink the same amount of alcohol, the heavy person will likely have a lower BAC.
A BAC of 0.08 percent is high, and people at this level are impaired mentally and physically whether or not they show it.
Many drinkers look and feel normal, which is why they wrongly decide they are fine to drive.
On the other hand, a BAC of 0.08 percent is considered to be high, and people at this level are impaired mentally and physically whether or not they show it.
On the test
Which of these is one of the three factors that influence a person's BAC?
The person's body weight. Knowing what raises BAC helps a driver see that two people can drink the same and not be equally impaired. Wyoming Rules of the Road Driver License Manual, p.33: “The amount or concentration of alcohol in the blood is known as Blood Alcohol Concentration or BAC. Three factors influence a person’s BAC:”
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 Wyoming Rules of the Road Driver License Manual, published by the Wyoming Department of Transportation, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/WY.pdf (Wyoming Rules of the Road Driver License Manual, August 2021, Wyoming Department of Transportation, Driver Services Program, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/WY.pages.txt (the plain pdftotext fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/WY-exam.html (045-1 Wyo. Code R. 1-11, WYDOT Rules Chapter 1 Section 11, as reproduced by the Legal Information Institute, retrieved 2026-10-04; sha256 pinned in SOURCES.json under examSource)
- https://wyoleg.gov/arules/2012/rules/ARR24-032.pdf (the department's 2024 filing of Chapter 1; Section 11(b)(ii): "A minimum grade of 80 percent shall be required to pass the knowledge test.")
- https://www.dot.state.wy.us/home/driver_license_records/driver-license/testing.html (read 2026-10-04; describes the written test, states no count or mark)
- https://www.dot.state.wy.us/home/driver_license_records/formsapplications/driver-manuals.html (read 2026-10-04; links the manual)