Massachusetts Car / Permit practice
Alcohol & Drugs
Blood alcohol limits, zero-tolerance and implied-consent laws, and how alcohol and drugs — legal or not — affect your driving.
Questions reviewed against the official Massachusetts driver handbook · July 7, 2026
13 questions · pass with 10 correct. You get instant feedback and an explanation after every answer.
Study questions with answers
12 sample Alcohol & Drugs questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.
1. A driver 21 or older is legally over the limit at what blood alcohol content (BAC)?
Correct answer: 0.08
A driver 21 or older is operating above the legal limit at a BAC of 0.08 or higher.
2. Under the Implied Consent Law, by driving in Massachusetts you agree to what?
Correct answer: Submit to a breath or blood test when lawfully requested
Every licensed driver agrees to submit to a breath or blood test when a police officer lawfully requests one during an OUI investigation.
3. What does the open container law prohibit?
Correct answer: Having an open alcoholic drink in the vehicle, even if a passenger holds it
You are not allowed to keep an opened alcoholic drink in the car, even when a passenger holds it; a conviction brings a fine.
4. Why does alcohol impair your ability to drive?
Correct answer: It is a depressant that slows reactions and judgment
Because alcohol is a depressant, it dulls reflexes, stretches reaction time, and clouds vision and judgment.
5. If you refuse a breath or blood test after an OUI arrest, what must the officer do?
Correct answer: Take your license and suspend it immediately
If you refuse the test, or your BAC is over the limit, the officer must take your license and give you a notice of suspension that is effective immediately.
6. How long is your license suspended for a first OUI conviction?
Correct answer: One year
A first OUI conviction carries a one-year license suspension, though a court may allow an alcohol education program to shorten the period.
Source: Massachusetts Driver's Manual — Penalties for Operating Under the Influence
7. Although some marijuana possession is decriminalized, driving while impaired by it is treated how?
Correct answer: As a criminal offense
Driving while impaired by marijuana remains a criminal offense, and the OUI penalty chart applies to it just like alcohol.
8. Combining alcohol with marijuana raises your crash risk by about how much?
Correct answer: About 12 times
Alcohol alone makes a crash about five times more likely, but alcohol combined with marijuana makes it about twelve times more likely.
9. When can you be charged with operating under the influence (OUI)?
Correct answer: Even when impaired by legal prescription or over-the-counter medicine
You can be charged with OUI even when the impairment comes from legal prescription or over-the-counter medicine, not just alcohol or illegal drugs.
Source: Massachusetts Driver's Manual — Illegal Drugs, Medicine, and Other Controlled Substances
10. Which of these contains roughly the same amount of alcohol?
Correct answer: A 12 oz beer, a 5 oz glass of wine, and a 1.5 oz shot of 80-proof liquor
A 12-ounce beer, a 5-ounce glass of wine, and a 1.5-ounce shot of 80-proof liquor each hold about the same amount of alcohol and can raise BAC about 0.02.
Source: Massachusetts Driver's Manual — Blood Alcohol Content
11. What actually reduces the amount of alcohol in your body?
Correct answer: The passage of time
Only time lets your body process alcohol. Coffee, a cold shower, or food may make you feel more alert but do not lower your BAC.
Source: Massachusetts Driver's Manual — Blood Alcohol Content
12. Under the state's zero-tolerance law, a driver under 21 can face penalties at a BAC as low as what?
Correct answer: 0.02
Massachusetts has a zero-tolerance law: a driver under 21 will lose their license for a BAC of 0.02 or higher.
Source: Massachusetts Driver's Manual — Under-21 Alcohol Offenses
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Every Massachusetts question is written from the official Massachusetts driver handbook and checked against its current edition. DMV Test Free is a free, independent study resource — not affiliated with any DMV or government agency. About DMV Test Free