Montana permit test: alcohol, drugs and driving
Why drinking and driving is dangerous, how long alcohol lasts, BAC and the law, open containers, other drugs. 18 questions, 10 at a time, starting with ones you haven't seen.
Rules to remember10 key alcohol, drugs and driving rulesShow the rules
- The average body processes about one drink per hour, and only time sobers you up. (p. 81)
- Alcohol affects judgment, the very thing that tells you when to stop drinking. (p. 81)
- Alcohol is absorbed through the stomach wall and can reach your brain within a minute, affecting judgment and skill. (p. 81)
- A first alcohol conviction suspends your license for six months, in addition to fines and possible jail. (p. 82)
- Drivers under 21 may not legally buy or drink alcohol, and their BAC limit for driving is 0.02. (p. 82)
- Drivers 21 and older can be arrested with a BAC of 0.08% or more, or for driving under the influence at a lower level. (p. 82)
- Call local law enforcement or the Montana Highway Patrol with a description of the vehicle and its direction. (p. 82)
- If an officer asks you to take a BAC test, you must. (p. 82)
- A container with its seal unbroken and none of its contents removed is not an open container under Montana law. (p. 82)
- Never drink alcohol while taking other drugs. (p. 83)
Taken from the explanations to checked practice questions; page numbers link to the official handbook.
Sample alcohol, drugs and driving questions
1.You are taking a prescription drug. What does the handbook say about drinking alcohol?
- ADo not drink while taking other drugs
- BIt is safe if you wait 30 minutes
- COne drink is safe with any prescription
- DIt is safe if the label has no warning
Show the answer
✓ A. Do not drink while taking other drugs
Never drink alcohol while taking other drugs. Drugs can multiply alcohol's effects or add their own, harming your driving and even your health.
Source: Montana Driver Manual (25-0100M) (Cover: 'Revised April 2024'), page 83
2.What BAC limit applies to a driver under 21 in Montana?
- A0.08
- B0.05
- C0.02
- D0.04
Show the answer
✓ C. 0.02
Drivers under 21 may not legally buy or drink alcohol, and their BAC limit for driving is 0.02.
Source: Montana Driver Manual (25-0100M) (Cover: 'Revised April 2024'), page 82
3.What jail time can a first alcohol driving conviction bring in Montana?
- A6 months to 1 year
- BNone for a first offense
- C1 to 60 days
- DUp to 10 days only
Show the answer
✓ C. 1 to 60 days
Even a first alcohol conviction can mean 1 to 60 days in jail, along with a fine and a six-month license suspension.
Source: Montana Driver Manual (25-0100M) (Cover: 'Revised April 2024'), page 82
4.How can medical marijuana affect your driving, according to the handbook?
- AIt only makes passengers drowsy
- BIt speeds up your reaction time
- CIt has no effect if it is prescribed
- DIt can slow reflexes like alcohol
Show the answer
✓ D. It can slow reflexes like alcohol
Prescription drugs, including medical marijuana, can affect your reflexes, judgment, vision and alertness much like alcohol.
Source: Montana Driver Manual (25-0100M) (Cover: 'Revised April 2024'), page 83