Impaired Driving & Penalties — District of Columbia

District of Columbia DMV practice test: 510 free practice questions (Based on the official driver handbook). Official test format: 25 Q pass 20; GRAD (16-20) 30 Q pass 24. Impaired Driving & Penalties: 35 questions. Updated

Blood alcohol limits, drugs and fatigue, licence suspensions, demerit points and fines.

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Topic / MetricValue
TopicImpaired Driving & Penalties
License testDistrict of Columbia Car learner's permit test
Topic questions35 (7% of 510 total)
Review statusThis topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines.

Official handbook

dmv.dc.gov ✓ Verified from official source

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Questions (35)

1. If you have had several beers, the effects of alcohol will be reduced only by:
  1. Taking a cold shower.
  2. Waiting several hours. ✓
  3. Drinking several cups of coffee.

Answer: B. Waiting several hours.

Official handbook: Official handbook
2. Drinking coffee after drinking alcohol:
  1. Decreases blood alcohol concentration.
  2. Cancels the effect of the alcohol.
  3. Has no effect on blood alcohol concentration. ✓
  4. Increases blood alcohol concentration.

Answer: C. Has no effect on blood alcohol concentration.

Official handbook: Official handbook
3. Driving while being distracted by any activity:
  1. Is never dangerous.
  2. Usually causes the driver to react more slowly to hazards. ✓
  3. Usually causes the driver to drive faster.
  4. Is only dangerous for young drivers.

Answer: B. Usually causes the driver to react more slowly to hazards.

Official handbook: Official handbook
4. If you become drowsy while driving, you should:
  1. Try to fight it.
  2. Take a break. ✓
  3. Take some caffeine pills.

Answer: B. Take a break.

Official handbook: Official handbook
5. What is the only way to reduce your blood alcohol concentration (BAC)?
  1. Drink coffee.
  2. Exercise.
  3. Allow your body time to get rid of the alcohol. ✓
  4. Take a cold shower.

Answer: C. Allow your body time to get rid of the alcohol.

Official handbook: Official handbook
6. What does alcohol do to your driving skills and judgement?
  1. It helps driving skills but harms your judgement.
  2. It harms both driving skills and judgement. ✓
  3. It has no effect on either driving skills or judgement.
  4. It has no effect on judgement but it harms driving skills.

Answer: B. It harms both driving skills and judgement.

Official handbook: Official handbook
7. The amount of alcohol in the blood is referred to as:
  1. Implied consent (IC).
  2. Blood alcohol concentration (BAC). ✓
  3. Rate of alcohol consumption (RAC).

Answer: B. Blood alcohol concentration (BAC).

Official handbook: Official handbook
8. It is illegal for a person 21 years of age or older to drive with a minimum blood alcohol concentration (BAC) of:
  1. 0.05 percent.
  2. 0.08 percent. ✓
  3. 0.02 percent.
  4. 0.1 percent.

Answer: B. 0.08 percent.

Official handbook: Official handbook
9. Any amount of alcohol in the blood may affect a driver's:
  1. Right-of-way privileges.
  2. Judgment and physical coordination. ✓
  3. Knowledge.

Answer: B. Judgment and physical coordination.

Official handbook: Official handbook
10. In which of the following ways can alcoholic beverages affect you?
  1. It slows your reaction time.
  2. It gives you a feeling of false confidence.
  3. It impairs your thinking ability.
  4. All of the above. ✓

Answer: D. All of the above.

Official handbook: Official handbook
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Last checked: 2026-10-17 · Verified from official source

Updated: · Based on the official driver handbook