Impaired Driving & Penalties — Wisconsin
Wisconsin CDL practice test: 443 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: 16 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 | Wisconsin CDL permit (CLP) knowledge tests |
| Topic questions | 16 (4% of 443 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 (16)
1. Which factor does not have an impact on a person’s blood alcohol concentration (BAC)?
- The number of alcoholic drinks consumed
- How quickly the alcoholic drinks were consumed
- The weight of the drinker
- The temperature of the drinks ✓
Answer: D. The temperature of the drinks
The temperature of the drinks does not affect a person's blood alcohol concentration; BAC depends on how much alcohol is consumed, how quickly it is consumed, and the drinker's weight. The handbook says BAC is set by the amount of alcohol you drink, the speed at which you drink it, and your weight. It also notes that what matters is the alcohol itself, not the type of drink it comes in. Drink temperature is not listed among the things that change BAC. That makes the temperature choice the one that does not have an impact.
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. If you identify a distracted driver on the road, you should:
- Follow their vehicle closely.
- Try to get their attention.
- Give them plenty of room. ✓
- Flash your lights at them.
Answer: C. Give them plenty of room.
Give them plenty of room and keep your safe following distance. The handbook's section on watching out for distracted drivers says to give a distracted driver plenty of room and maintain your safe following distance. It also warns you to be very careful when passing, because the distracted driver may not know you are there and may drift in front of you. Keeping space around them means you have time to react if they drift over the lane divider, vary their speed, or move suddenly.
4. An open automobile window in cold weather may indicate that the driver is:
- Driving impaired. ✓
- Inappropriately dressed.
- Using the heat inside their vehicle.
- Enjoying the fresh air.
Answer: A. Driving impaired.
An open window in cold weather may mean the driver is driving impaired. The handbook puts an open window in cold weather in the same short list as speeding up or slowing down suddenly and driving too fast or too slow, right before it tells you to watch for drunk and sleepy drivers late at night. In that section the open window is treated as a clue about the driver's condition, not as a comfort choice, so the handbook answer is that it points to impairment. The passage does not explain the reason behind the clue, only that you should notice it.
5. 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.
6. 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.
7. A fatigued driver:
- Is extra alert.
- Should take over-the-counter remedies to wake them up.
- May make critical decisions too slowly. ✓
- Is usually more conscientious than a typical driver.
Answer: C. May make critical decisions too slowly.
A fatigued driver may make critical decisions too slowly. The handbook describes fatigue as physical or mental tiredness from strain, repetitive tasks, illness, or lack of sleep. It says fatigue impairs your vision and judgment much like alcohol and drugs, and that it affects your ability to make critical decisions. It also slows how quickly you see and react to hazards and makes you more likely to misjudge speed and distance. So a tired driver does not simply feel sleepy; the thinking behind driving choices gets worse.
8. Distracted driving:
- Always comes as a result of physical distraction, not mental distraction.
- Can be elevated by pre-programming radio stations.
- Can be avoided by eating while driving.
- Can be avoided by not engaging in complex conversations while driving. ✓
Answer: D. Can be avoided by not engaging in complex conversations while driving.
You can avoid distracted driving by not engaging in complex conversations while driving. The handbook's driving-safely section lists ways to reduce distraction before and during a trip. It says to pre-program radio stations, review maps, and plan your route before you begin driving. While driving, it says not to read or write, to avoid smoking, eating, and drinking, and not to engage in complex or emotionally intense conversations with other occupants. Choosing not to have complex conversations removes one of the distractions the handbook specifically names, so it is a valid way to help avoid distracted driving.
9. When driving, you should stop and take a break ____ to avoid becoming too tired.
- Every half hour
- Every hour
- Every two hours ✓
- Every six hours
Answer: C. Every two hours
You should stop and take a break about every two hours during a long trip to keep from getting too tired. The handbook's list of ways to stay alert on the road includes taking periodic breaks, and it puts the timing at roughly every 100 miles or 2 hours on long trips. The same section warns that trying to push on while tired is a major cause of fatal accidents, and it tells you to stop driving and rest or nap once you notice signs of fatigue. So the two-hour mark is the book's own break interval, not a guess.
10. Over-the-counter medication:
- Poses no safety risks to a driver.
- Is not referenced by any laws regarding driving under the influence.
- Cannot impair a driver.
- Can affect a person’s ability to drive safely. ✓
Answer: D. Can affect a person’s ability to drive safely.
Over-the-counter medication can affect a person’s ability to drive safely. The handbook lists prescription and over-the-counter drugs, such as cold medicines, among substances that can make a driver unsafe. It says these medicines may make you drowsy or otherwise affect your ability to drive safely. It also tells drivers to pay attention to warning labels and doctor's orders about possible effects. That is why the bank answer treats OTC medication as something that can change how safely you drive, not as a harmless product.
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Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook