Impaired Driving & Penalties — Ohio
Ohio CDL practice test: 388 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 | Ohio CDL permit (CLP) knowledge tests |
| Topic questions | 11 (3% of 388 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. When experiencing cold weather, be sure to check your vehicle's alcohol evaporator:
- Every three hours.
- Every day. ✓
- Every other week.
Answer: B. Every day.
2. The only way to sober up after consuming alcohol is to:
- Take a cold shower.
- Exercise.
- Wait. ✓
Answer: C. Wait.
The only way to sober up is to wait — time is what clears alcohol from your body. The handbook explains that alcohol travels through the bloodstream to the brain and then to the liver, and the liver burns it off at a fixed rate of one-third of an ounce per hour. Because that rate cannot be sped up, the passage says plainly that only time will sober you up, and it names black coffee and a cold shower as things that will not. So sitting still and letting your body do its work is the only real option.
3. Which of the following determines your blood alcohol concentration (BAC)?
- How much you drink ✓
- How frequently you drink
- The temperature of the drink
Answer: A. How much you drink
The amount you drink determines your blood alcohol concentration (BAC). Your blood alcohol concentration goes up with the amount of alcohol you drink. The handbook lists the amount consumed, how fast you drink, and your weight as the things that set BAC, with more alcohol producing a higher BAC. It also says the source of the alcohol does not matter, so whether it comes from beer, wine, or liquor, what counts is the alcohol itself. Nothing in the passages says the temperature of a drink changes BAC. That is why the amount you drink is the listed factor among these choices.
4. When driving, you should stop every ____ to take a break to avoid becoming too tired.
- Half hour
- Two hours ✓
- Six hours
Answer: B. Two hours
You should stop about every two hours during a long trip to take a break. The handbook's list of ways to stay alert behind the wheel includes taking periodic breaks, roughly every 100 miles or 2 hours on long trips. It also warns that pushing on while tired is more dangerous than most drivers realize. A two-hour break interval fits that guidance directly, while the other intervals listed in the choices do not appear anywhere in the handbook's fatigue advice.
5. 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.
6. 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.
7. 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.
8. If you are feeling tired and yawning a lot while you are driving, you should:
- Pull over and take a nap. ✓
- Get some coffee.
- Drive faster.
Answer: A. Pull over and take a nap.
You should pull over and take a nap. Yawning a lot is a sign of fatigue, and the handbook says to stop driving when you notice any sign of fatigue. It tells tired drivers to sleep for the night or take a short nap of about 15 to 20 minutes. The handbook also says forcing yourself to continue when tired is more dangerous than many people realize and is a major cause of deadly crashes. So the safe action is to get off the road and rest, not to keep driving.
9. While still below the legal limit, a driver operating a CMV with a detectable amount of alcohol in their system will:
- Result in an out-of-service order for two hours.
- Result in an out-of-service order for 10 hours.
- Result in an out-of-service order for 24 hours. ✓
Answer: C. Result in an out-of-service order for 24 hours.
Any detectable amount of alcohol under .04% puts you out of service for 24 hours. The handbook states that a CMV driver with any detectable amount of alcohol under .04% is placed out of service for 24 hours. That covers the situation in the question: you are still under the legal limit, but alcohol shows up. The rule ties the length of the out-of-service period to the presence of any alcohol at all, not to how far below the limit you are, so the 24-hour figure is the one that applies.
10. If asked by a law enforcement officer to take a test to determine your blood alcohol concentration (BAC):
- You can refuse to take the test without a penalty.
- You can refuse taking the test but will be required to pay a $50 fine.
- You will lose your CDL if you refuse to take the test. ✓
Answer: C. You will lose your CDL if you refuse to take the test.
If an officer asks you to take a BAC test, refusing will cost you your CDL. The handbook explains that driving a commercial motor vehicle in the state means you have already agreed to submit to a chemical test of breath, blood, or urine to measure BAC or detect drugs. Because that consent is implied by the act of driving, saying no to the test is treated as a serious matter: the handbook states plainly that refusing a BAC test while operating a CMV results in losing your CDL for a period set by law. The length of that loss is not given here, only that it happens.
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Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook