New Hampshire Car / Permit practice
New Hampshire Car / Permit: Alcohol & Drugs practice test
Blood alcohol limits, zero-tolerance and implied-consent laws, and how alcohol and drugs — legal or not — affect your driving.
Content reviewed against official driver handbooks · August 12, 2026
14 questions · pass with 11 correct. You get instant feedback and an explanation after every answer.
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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.
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1. Roughly how long does the body need to process one ounce of alcohol?
Correct answer: About an hour
The manual gives a rough rate of about an hour for each ounce of alcohol consumed to work its way through the body.
Source: New Hampshire Driver's Manual — Section 3, Alcohol, Other Drugs and Driving
2. What does the manual advise before taking an over-the-counter medicine and driving?
Correct answer: Read the label's warnings and ask a doctor or pharmacist if unsure
Remedies for colds, allergies or nerves can bring on drowsiness, so a driver should read the warnings on the package and ask a doctor or pharmacist when unsure.
Source: New Hampshire Driver's Manual — Section 3, Alcohol, Other Drugs and Driving
3. At what blood alcohol concentration is a driver aged 21 or older considered legally intoxicated in New Hampshire?
Correct answer: .08 percent
The manual sets the adult threshold at eight hundredths of a percent, with a far lower limit of two hundredths for anyone under twenty-one.
Source: New Hampshire Driver's Manual — Section 2, Loss of Driving Privileges
4. What alcohol concentration puts a nineteen-year-old New Hampshire driver over the legal limit?
Correct answer: .02 or higher
For a driver below the age of twenty-one, an alcohol concentration of two hundredths of a percent or more is already unlawful.
Source: New Hampshire Driver's Manual — Section 3, Alcohol, Other Drugs and Driving
5. What does the manual say about drinking alcohol while taking other drugs?
Correct answer: A driver should never combine them, as the effects can multiply
Mixing them is warned against outright, since the combination can magnify the effects of the alcohol or add fresh effects of its own.
Source: New Hampshire Driver's Manual — Section 3, Alcohol, Other Drugs and Driving
6. A driver has been awake continuously for eighteen hours. What does the manual compare that performance to?
Correct answer: A BAC of about .05 percent
Eighteen hours without sleep produces performance much like a blood alcohol concentration of five hundredths of a percent, and the deficit deepens with more hours awake.
Source: New Hampshire Driver's Manual — Section 3, Fatigue
7. At what blood alcohol level does the manual say a driver's vision is already affected?
Correct answer: .02 BAC
The manual states that vision suffers at two hundredths of a percent for every driver, well below the adult limit for arrest.
Source: New Hampshire Driver's Manual — Section 3, Alcohol, Other Drugs and Driving
8. Which three abilities does the manual single out as damaged by alcohol and other impairing drugs?
Correct answer: Judgment, vision and reaction time
The manual groups the damage under judgment, vision and reaction time, all of which a driver depends on continuously.
Source: New Hampshire Driver's Manual — Section 3, Alcohol, Other Drugs and Driving
9. What does New Hampshire's implied consent rule mean for anyone who drives in the state?
Correct answer: The driver has already agreed to chemical testing following an arrest on an alcohol or drug charge
Driving in New Hampshire counts as agreeing in advance to testing of blood, breath or urine after an arrest for an alcohol or drug offense, and turning the test down can cost driving privileges.
Source: New Hampshire Driver's Manual — Section 2, Loss of Driving Privileges
10. How do pep pills and diet pills affect a driver, according to the manual?
Correct answer: They can cause nervousness, dizziness, poor concentration and vision problems
Stimulants of that kind can leave a driver jittery, dizzy and unable to concentrate, and they can interfere with vision as well.
Source: New Hampshire Driver's Manual — Section 3, Alcohol, Other Drugs and Driving
11. May a twenty-year-old New Hampshire driver carry alcohol in the vehicle?
Correct answer: No, unless a parent, guardian or a spouse of legal age rides along
A driver under twenty-one may not transport liquor or alcoholic beverages anywhere in the vehicle unless a parent, legal guardian or spouse of legal age is riding along.
Source: New Hampshire Driver's Manual — Section 3, Alcohol, Other Drugs and Driving
12. What penalties does a first conviction for driving under the influence carry in New Hampshire?
Correct answer: A fine of no less than five hundred dollars, possible suspension, and a required education program
A first offense is a Class B misdemeanor carrying a fine of at least five hundred dollars, a possible loss of driving privileges from nine months up to two years, and a required impaired driver education program before restoration.
Source: New Hampshire Driver's Manual — Section 3, Alcohol, Other Drugs and Driving
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Every New Hampshire question is written from the official New Hampshire 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