Impaired Driving & Penalties — Michigan
Michigan CDL practice test: 371 free practice questions (Based on the official driver handbook). The official format is not yet verified; check the official site before your test. Impaired Driving & Penalties: 11 questions.
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 / Metric | Value |
|---|---|
| Topic | Impaired Driving & Penalties |
| License test | Michigan CDL permit (CLP) knowledge tests |
| Topic questions | 11 (3% of 371 total) |
| Review status | This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines. |
Official handbook
Not yet verified
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Questions (11)
1. Which of the following is not a sign of a driver becoming tired?
- Frequent blinking
- Drifting from their lane
- Feeling hungry ✓
Answer: C. Feeling hungry
Feeling hungry is not a sign of a driver becoming tired. The handbook's list of fatigue warning signs includes drifting from your lane, following too closely, hitting a shoulder rumble strip, feeling restless and irritable, and trouble remembering the last few miles. Hunger does not appear on that list. The handbook tells you to treat these warning signs seriously: if you notice any signs of fatigue, stop driving and sleep for the night or take a 15 to 20 minute nap. Feeling hungry is a normal body signal about food, not a fatigue warning.
2. If you are transporting a drunk passenger, you should:
- Force them to immediately exit the bus.
- Wait until you are at an appropriate area, such as a stop or well-lit area, to have them exit the bus. ✓
- Give them coffee to help them sober up.
Answer: B. Wait until you are at an appropriate area, such as a stop or well-lit area, to have them exit the bus.
Wait until you reach an appropriate place, such as a scheduled stop or a well-lit area with other people, before having a drunk passenger exit the bus. The handbook says that if you have a drunk or disruptive rider, you must protect that rider's safety and everyone else's. It specifically warns not to put such a rider off the bus where that would be unsafe. It adds that a scheduled stop or a lit place where people are present may be safer. That is why the correct action is to hold off until you get to a suitable place, rather than making the person leave right away.
3. The more alcohol in the body:
- The quicker the liver will digest the alcohol.
- The less effect the alcohol will have on the individual.
- The longer it will take to remove the alcohol from the body. ✓
Answer: C. The longer it will take to remove the alcohol from the body.
The more alcohol in the body, the longer it will take to remove it, so choose the answer saying removal takes longer. The handbook explains that the liver handles alcohol at a fixed rate — only about one-third of an ounce per hour, which is less than what a standard drink contains. Because that rate does not speed up, drinking faster than the body can clear alcohol means more of it builds up in your blood. The handbook states plainly that only time, not black coffee or a cold shower, sobers you up. So a larger amount of alcohol in the body simply means a longer wait before it is gone.
4. A distracted driver:
- Usually follows the rules of the road.
- Usually has slowed perception. ✓
- Is a good person to follow.
Answer: B. Usually has slowed perception.
A distracted driver usually has slowed perception. The handbook lists slowed perception as one effect of distracted driving. It explains that this can make a driver late to notice, or miss entirely, something important happening in traffic. The same section also mentions delayed decisions and wrong inputs to steering, accelerator, or brakes. Because the manual ties distraction to slowed perception, the statement about slowed perception fits.
5. Which of the following is not a sign of fatigue?
- Difficulty focusing, with frequent blinking
- Yawning repeatedly or rubbing eyes
- Staying in your lane ✓
Answer: C. Staying in your lane
Staying in your lane is not a sign of fatigue — drifting out of your lane is. The handbook lists the warning signs of tired driving, and among them is drifting from your lane, along with trouble remembering the last few miles, missing exits or signs, following too closely, or hitting a shoulder rumble strip. It also mentions feeling restless and irritable. Holding a steady position in your lane is normal driving, not a fatigue signal. The handbook adds that pushing on while tired is more dangerous than most drivers think and is a major cause of fatal crashes, so any sign of fatigue means you should stop and sleep or take a short nap.
6. Which of the following is not a type of distraction?
- Physical
- Mental
- Obtuse ✓
Answer: C. Obtuse
Obtuse is not a type of distraction. The handbook says a distraction is anything that takes your attention away from driving, and it gives examples such as talking to passengers, adjusting controls, eating or drinking, texting, and daydreaming or being occupied with other mental distractions. Those examples include physical actions and mental attention. The handbook never lists obtuse as a distraction category, and nothing in the passage ties that word to something that pulls your attention from driving.
7. A fatigued driver:
- Is usually extra alert.
- Is usually more conscientious than a typical driver.
- May be slower to make critical decisions than a typical driver. ✓
Answer: C. May be slower to make critical decisions than a typical driver.
A fatigued driver may be slower to make critical decisions than a typical driver. The handbook says fatigue is physical or mental tiredness that impairs vision and judgment. It also says fatigue causes errors related to speed and distance, makes it harder to see and react to hazards quickly, and affects the ability to make critical decisions. That directly supports the idea that a tired driver may take longer to make important driving decisions than a typical driver.
8. Drowsy driving is most common during:
- The night. ✓
- The early morning.
- The mid-afternoon.
Answer: A. The night.
Drowsy driving is most common at night, so the correct choice is the one naming the night. The handbook says drowsy-driving crashes tend to happen when sleepiness is strongest, and it names the night and the mid-afternoon as those times. It then explains that most people are less alert at night, particularly after midnight, and that drivers who drive at night are much more likely to have fall-asleep crashes. That reasoning points to night as the time when drowsy driving is most common, which is what the question asks for.
9. If approaching a vehicle with a distracted driver, you should:
- Quickly pass the vehicle.
- Maintain a safe distance from the vehicle. ✓
- Closely follow the vehicle.
Answer: B. Maintain a safe distance from the vehicle.
When you approach a vehicle whose driver seems distracted, keep a safe distance back from it. The handbook tells you to give a distracted driver plenty of room and hold your normal safe following distance. It also warns that these drivers drift over lane lines or within their lane and run at inconsistent speeds, so staying back gives you room to see and react. The handbook adds that passing such a driver calls for extra care, because they may not notice you and may drift in front of you. Space is the protection it recommends, so holding a safe distance is the right choice.
10. Alcohol can be removed from your system:
- By exercising.
- By drinking coffee.
- By waiting. ✓
Answer: C. By waiting.
Alcohol can be removed from your system only by waiting. The handbook explains that alcohol enters the bloodstream and is processed by the liver at a fixed rate. It says the liver handles only a small amount per hour, so the process cannot be rushed. The passage specifically says that time, not black coffee or a cold shower, will sober you up. That makes waiting the only listed way for alcohol to leave your system. The handbook does not mention exercise as a way to remove alcohol, and it directly rules out coffee as a sober-up method.
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Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook