Impaired Driving & Penalties — Minnesota
Minnesota CDL practice test: 458 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: 24 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 | Minnesota CDL permit (CLP) knowledge tests |
| Topic questions | 24 (5% of 458 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 (24)
1. Which of the following is not a sign of fatigue?
- Ability to focus ✓
- Daydreaming
- Yawning repeatedly
- Drifting from your lane
Answer: A. Ability to focus
The one that is not a sign of fatigue is the ability to focus. The handbook's fatigue section lists drifting from your lane and trouble recalling recent miles as warning signs, and it says pushing on while tired is a major cause of fatal crashes. Being able to focus is the opposite of the reduced attention those signs point to. The handbook does not list focus as a fatigue warning; it tells you to stop when warning signs appear.
2. Alcohol begins to affect the body:
- After only one drink. ✓
- After several drinks have been consumed.
- At the legal limit.
Answer: A. After only one drink.
Alcohol begins to affect the body after only one drink. The handbook explains that alcohol enters the bloodstream and reaches the brain, and it lists mild effects such as a mellow feeling and slight body warmth among the early BAC effects. It also says the liver handles only about one drink per hour, so alcohol from a single drink is present and can affect you before it clears. The effects are tied to rising BAC, not to reaching the legal limit or to having several drinks first.
3. Compared to talking on a cell phone while driving, texting while driving is:
- Much safer.
- Just as safe.
- More dangerous. ✓
Answer: C. More dangerous.
Texting while driving is more dangerous than talking on a cell phone. The handbook states that text messaging is even riskier than a phone conversation. It explains that texting pulls your eyes to a small screen and ties up your hands on the keypad, and it distracts you physically and mentally at the same time. That combination is why the handbook treats texting as the most alarming distraction. Talking on a phone can also distract you, but the passage puts texting in a higher-risk category, so the correct choice is the one saying it is more dangerous.
4. Frequent blinking may be a sign of fatigue.
- True ✓
- False
Answer: A. True
True — frequent blinking is listed among the warning signs of drowsiness and fatigue. The handbook lists fatigue warning signs under drowsiness prevention, and frequent blinking appears right alongside heavy eyelids and trouble focusing. Those are things a driver can notice in themselves before a crash happens. The same section says pushing on while tired is far more dangerous than most drivers think, and it tells you to stop and sleep for the night or take a 15–20 minute nap once you notice any sign of fatigue. So blinking is treated as a real warning sign, not a harmless habit.
5. Distracted driving:
- Is caused only by physical distractions.
- Will be increased by pre-programming radio stations.
- Can be prevented by avoiding conversation with others. ✓
Answer: C. Can be prevented by avoiding conversation with others.
Distracted driving can be prevented by avoiding conversation with others while you are driving. The handbook tells drivers not to engage in complex or emotionally intense conversations with other occupants, and to get passengers to help reduce distractions. For bus drivers it is even more direct: don't talk with riders or do anything else distracting while driving. So keeping conversation out of the driver's seat is a real prevention step. The handbook also points out that a driver busy talking with passengers is one of the distracted drivers you should watch for, which shows talk itself pulls attention away from the road.
6. 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.
7. Distracted driving:
- Is not a concern.
- Only happens when drivers are physically doing something, like using a cell phone.
- Can occur due to mental activities, such as daydreaming. ✓
- Is encouraged on uncrowded roads.
Answer: C. Can occur due to mental activities, such as daydreaming.
Distracted driving can occur because of mental activities, including daydreaming. The handbook lists daydreaming and being occupied with other mental distractions among the activities inside a vehicle that can distract your attention. It also separates mental distraction, which takes your mind off the road, from physical distraction, which takes your hands or eyes away. That makes clear that distracted driving is not limited to handling a phone; thinking about something else while driving counts. The handbook says distracted driving can cause collisions and the resulting injury, death, or property damage.
8. There is no penalty for refusing to undergo blood alcohol testing.
- True
- False ✓
Answer: B. False
False — refusing a blood alcohol test does carry a penalty: you lose your CDL for a period set by law. The handbook explains that driving a CMV in the state means you have already given implied consent to chemical testing of breath, blood, or urine. Because that consent is built into the act of driving, saying no to the test is treated as a violation, not a free pass. The handbook states plainly that refusing a BAC test while operating a CMV results in losing your CDL for a duration mandated by law, and it lists refusing blood alcohol testing among the disqualifying offenses.
9. To prevent fatigue while driving, you should:
- Keep the cab warm.
- Keep the cab cool. ✓
- Keep the cab poorly ventilated.
- Close the vents.
Answer: B. Keep the cab cool.
Keep the cab cool — the handbook's alertness list says to keep cool by opening a window or running the air conditioner. The fatigue section of the handbook gives a short list of things you can do to stay alert behind the wheel, and one of those items is to keep cool by opening the window or using the air conditioner. That cooling advice sits right alongside other alertness habits such as wearing sunglasses against glare and eyestrain, taking periodic breaks, and stopping to rest or nap. Since the handbook names keeping cool as the way to help maintain alertness, keeping the cab cool is the choice that matches it.
10. A distracted driver:
- Usually reacts well to hazards.
- Usually has slowed perception. ✓
- Is usually aware of what is happening around them.
- Is a good person to follow.
Answer: B. Usually has slowed perception.
A distracted driver usually has slowed perception, so they may notice hazards late or miss them entirely. The handbook lists slowed perception as an effect of distracted driving. It says this can delay you in perceiving an important traffic event or make you fail to perceive it at all. The same section also mentions delayed decision making and improper action, which means distraction affects how you take in and respond to what is happening. Because the handbook ties distracted driving to slowed perception and increased risk, the answer that says perception is usually slowed fits directly.
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Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook