Connecticut 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.
Content reviewed against official driver handbooks · 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. Under Connecticut's zero-tolerance law, a driver under 21 can be penalized for a blood alcohol level of at least what amount?
Correct answer: .02 percent
For drivers under 21, any measurable amount defined as .02 percent or more triggers penalties on both public roads and private property.
Source: CT Driver's Manual — Alcohol and the Law
2. What is the only thing that actually reduces the alcohol level in your body?
Correct answer: The passage of time
There is no way to sober up quickly. Coffee, fresh air, exercise, and cold showers do not work — only the passage of time does.
Source: CT Driver's Manual — Alcohol and You
3. Why are new drivers more affected by alcohol than experienced ones?
Correct answer: They are still developing driving skills
New drivers are still learning to drive, so alcohol impairs them even more. No one can drink and drive safely, regardless of experience.
Source: CT Driver's Manual — Drinking and Driving
4. How can prescription and over-the-counter medications affect your driving?
Correct answer: They may impair reflexes and alertness like alcohol
Drugs for colds, allergies, headaches, or nerves can cause drowsiness and impair reflexes, vision, and judgment much like alcohol. Check the label or ask your doctor.
Source: CT Driver's Manual — Drugs and Driving
5. What happens if you refuse to take a chemical test when arrested for DUI?
Correct answer: License suspended at least 45 days plus an interlock device
Regardless of age, refusing the test suspends your license for at least 45 days, and an ignition interlock device is required for at least one year as a condition of reinstatement.
Source: CT Driver's Manual — Alcohol and the Law
6. Alcohol is a factor in roughly what share of Connecticut's fatal traffic crashes?
Correct answer: More than 40 percent
The manual notes that alcohol is involved in more than 40 percent of crashes in which someone is killed.
Source: CT Driver's Manual — Drinking and Driving
7. Which driving ability does alcohol impair, making it hard to know you have had too much?
Correct answer: Your judgment
Alcohol reaches the brain areas that control judgment and skill. Impaired judgment means you may not realize you are affected until it is too late.
Source: CT Driver's Manual — Why is Drinking and Driving So Dangerous?
8. How can a group planning to drink socially arrange to get home safely?
Correct answer: Choose a designated driver who will not drink
Agree in advance which member will stay sober as the designated driver, or use public transportation or a cab. You can rotate who abstains among trips.
Source: CT Driver's Manual — Alcohol and You
9. According to the manual, which of these counts as one standard alcoholic drink?
Correct answer: A 12-ounce beer
One drink equals 1.5 oz of 80-proof liquor, a 12 oz beer, or a 5 oz glass of wine. Specialty drinks can equal several normal drinks.
Source: CT Driver's Manual — Alcohol and You
10. After a DUI test failure or refusal, what device must be installed to have your license reinstated?
Correct answer: An ignition interlock device
An ignition interlock device (IID) is required as a condition of reinstatement, with the length depending on prior offenses.
Source: CT Driver's Manual — Alcohol and the Law
11. If you fail a chemical test after a DUI arrest, for at least how long will your license be suspended?
Correct answer: At least 45 days
Failing the blood, breath, or urine test results in a license suspension of at least 45 days, plus an ignition interlock device as a condition of reinstatement.
Source: CT Driver's Manual — Alcohol and the Law
12. Why is it dangerous to drink alcohol while taking other medications?
Correct answer: The combination can multiply the effects
Combining alcohol with other drugs can multiply alcohol's effects or add new ones, reducing your driving ability and even causing serious health problems.
Source: CT Driver's Manual — Drugs and Driving
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Every Connecticut question is written from the official Connecticut 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