Impaired Driving & Penalties — Louisiana

Louisiana DMV practice test: 617 free practice questions (Based on the official driver handbook). Official test format: Class E: 40 Q, pass 32. Impaired Driving & Penalties: 43 questions. Updated

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

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Topic / MetricValue
TopicImpaired Driving & Penalties
License testLouisiana Car learner's permit test (Class E)
Topic questions43 (7% of 617 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

expresslane.la.gov ✓ Verified from official source

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Questions (43)

1. The effect that lack of sleep has on your safe driving ability is the same as:
  1. The effect that alcohol has. ✓
  2. The effect that amphetamines have.
  3. The effect that anger has.
  4. The effect that driving with teenagers has.

Answer: A. The effect that alcohol has.

Official handbook: Official handbook
2. A telltale sign of a drunk driver is:
  1. They are weaving between lanes.
  2. They are driving more slowly than the normal traffic flow.
  3. They are making quick and sudden stops.
  4. All of the above. ✓

Answer: D. All of the above.

Official handbook: Official handbook
3. Blood alcohol content (BAC) depends on each of the following, except:
  1. Your body weight.
  2. How much you drink.
  3. How much time passes between drinks.
  4. How physically fit you are. ✓

Answer: D. How physically fit you are.

Official handbook: Official handbook
4. What might happen when alcohol is combined with another drug?
  1. The effects of the alcohol and the drug may both be increased. ✓
  2. Nothing will happen.
  3. The effects of the alcohol and the drug may both be reduced.
  4. The effects of only the alcohol may be reduced.

Answer: A. The effects of the alcohol and the drug may both be increased.

Official handbook: Official handbook
5. Distracted driving may be caused by:
  1. Eating, drinking, or smoking.
  2. Talking or texting on a cellular phone.
  3. Changing a radio station or CD.
  4. All of the above. ✓

Answer: D. All of the above.

Official handbook: Official handbook
6. To help relieve fatigue on a long trip, it is a good idea to:
  1. Stop and rest every two hours. ✓
  2. Do arm exercises every hour.
  3. Drive with one eye open at a time.
  4. Change feet on the gas pedal.

Answer: A. Stop and rest every two hours.

Official handbook: Official handbook
7. Which medications could have negative side effects that affect driving ability?
  1. Any medication ✓
  2. Only headache medicine
  3. Only diet pills
  4. Only prescription medication

Answer: A. Any medication

Official handbook: Official handbook
8. 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
9. The consumption of alcohol while taking drugs can:
  1. Decrease the effects of the drugs and alcohol.
  2. Increase the effects of both the drugs and alcohol. ✓
  3. Help cure your illness.
  4. Improve your driving ability.

Answer: B. Increase the effects of both the drugs and alcohol.

Official handbook: Official handbook
10. If you drink alcohol socially, what helps ensure safe driving?
  1. Drink coffee before driving.
  2. Ride home with a friend who has not been drinking. ✓
  3. Take a cold shower before driving.
  4. Stop drinking one half hour before driving.

Answer: B. Ride home with a friend who has not been drinking.

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

Updated: · Based on the official driver handbook