Alcohol, Drugs & DUI
Understand how alcohol and drugs destroy driving judgment and what follows.
Impairment questions are less about memorizing numbers and more about understanding what alcohol and drugs actually remove: judgment first, then reaction time, then coordination. Study how impairment builds, why self-assessment fails, and what consequences follow a violation, so the exam's scenario questions become predictable, because the impaired choice is always the one that felt fine at the time.
Read this in the handbook
Start with the handbook sections that match this module, then come back for sample questions and drills.
Practice alcohol, drugs & dui questions
'Drugged driving' refers to:
- A. Driving while carrying illegal drugs in the vehicle
- B. Only driving after using illegal narcotics, not legal medications or alcohol
- C. Operating a vehicle while impaired by any substance, including prescription or over-the-counter drugs
- D. Driving after taking more than the prescribed dose of medication
Show answer
C. Operating a vehicle while impaired by any substance, including prescription or over-the-counter drugs — Drugged driving means operating a vehicle while impaired by any substance — legal or illegal — that affects your ability to drive safely. This includes marijuana, opioids, sedatives, and even some antihistamines.
What is a first-offense DUI conviction's typical consequence?
- A. License suspension, fines, possible jail time, alcohol education requirements, and potential SR-22 insurance requirement
- B. A small fine and no further penalties when applicable to your jurisdiction
- C. Only a mandatory 10 hours of community service
- D. Just a traffic citation with no court appearance
Show answer
A. License suspension, fines, possible jail time, alcohol education requirements, and potential SR-22 insurance requirement — A first DUI conviction typically results in: license suspension, significant fines, possible jail time, mandatory alcohol education, and SR-22 insurance requirement. Many states also require ignition interlock devices.
If you see a driver you suspect is impaired, you should:
- A. Keep a safe distance and report to law enforcement
- B. Follow them closely to confirm
- C. Try to pass them immediately
- D. Flash your lights at them
Show answer
A. Keep a safe distance and report to law enforcement — Keep a safe distance from suspected impaired drivers and report them to law enforcement when safe to do so.
An ignition interlock device (IID) requires:
- A. The driver to breathe into a device that tests BAC before the vehicle will start — and periodically during the drive
- B. The driver to wait 5 seconds before starting, with no breath test involved
- C. The vehicle to be inspected annually by a DMV officer
- D. The driver to complete a driving test after a DUI conviction
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A. The driver to breathe into a device that tests BAC before the vehicle will start — and periodically during the drive — An IID is a breathalyzer device wired to the ignition. The driver must provide a breath sample below a set BAC threshold to start the vehicle. Random re-tests during driving prevent having someone else blow. Required after DUI in most states.
For drivers under 21, the legal BAC limit is:
- A. 0.00% or 0.02% depending on state
- B. 0.05%
- C. 0.08%
- D. Same as adult drivers
Show answer
A. 0.00% or 0.02% depending on state — Most states have zero-tolerance laws for underage drivers, with BAC limits of 0.00% or 0.02%.
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