Impaired Driving & Penalties — Idaho

Idaho DMV practice test: 556 free practice questions (Based on the official driver handbook). Official test format: Class D: 40 Q, pass 34. Impaired Driving & Penalties: 40 questions. Updated

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

This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines.

Topic / MetricValue
TopicImpaired Driving & Penalties
License testIdaho Car learner's permit test (Class D)
Topic questions40 (7% of 556 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

itd.idaho.gov ✓ Verified from official source

Advertisement

Questions (40)

1. Alcohol:
  1. Slows reflexes and reaction time. ✓
  2. Puts you to sleep.
  3. Wakes you up.
  4. Improves your judgment.

Answer: A. Slows reflexes and reaction time.

Official handbook: Official handbook
2. You may avoid the risks of alcohol-related crashes by:
  1. Deciding before you start drinking that you are not going to drive.
  2. Simply saying, "No thanks, I'm driving," if someone offers you a drink.
  3. Calling a taxi.
  4. Doing any of the above. ✓

Answer: D. Doing any of the above.

Official handbook: Official handbook
3. Which of the following does not happen after drinking?
  1. Your reflexes and reaction time slow down.
  2. Your judgement of speed and distance is distorted.
  3. You are less alert.
  4. You calm down and can concentrate better. ✓

Answer: D. You calm down and can concentrate better.

Official handbook: Official handbook
4. As alcohol builds up in your blood, it:
  1. Slows down your reactions. ✓
  2. Makes you feel less confident.
  3. Begins to metabolize itself more quickly.
  4. Decreases the number of driving errors.

Answer: A. Slows down your reactions.

Official handbook: Official handbook
5. 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
6. If you begin to feel tired while driving, the best thing to do is to:
  1. Get some coffee.
  2. Open your window.
  3. Stop driving. ✓
  4. Turn on the radio.

Answer: C. Stop driving.

Official handbook: Official handbook
7. Taking drugs along with alcohol:
  1. Increases the risk of causing a crash. ✓
  2. Is no more dangerous than consuming alcohol by itself.
  3. Lessens the effect of alcohol on your ability to drive.
  4. Has no effect on your general driving ability.

Answer: A. Increases the risk of causing a crash.

Official handbook: Official handbook
8. 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
9. 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
10. If you are driving a car and are 21 years of age or older, you are considered to be driving under the influence if your blood alcohol concentration (BAC) is:
  1. 0.02 percent or higher.
  2. 0.04 percent or higher.
  3. 0.06 percent or higher.
  4. 0.08 percent or higher. ✓

Answer: D. 0.08 percent or higher.

Official handbook: Official handbook
Practice this topicTake mock exam
Advertisement

Source

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

Updated: · Based on the official driver handbook