Impaired Driving & Penalties — Florida
Florida CDL practice test: 411 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 | Florida CDL permit (CLP) knowledge tests |
| Topic questions | 11 (3% of 411 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. It is illegal to operate a CMV with a minimum blood alcohol content (BAC) of:
- 0.01 percent.
- 0.02 percent.
- 0.04 percent. ✓
- 0.08 percent.
Answer: C. 0.04 percent.
It is illegal to operate a CMV with a blood alcohol concentration of 0.04 percent or more. The handbook states plainly that driving a CMV with a BAC of .04% or higher is illegal, and it lists that same level as a serious offense. So for a commercial vehicle the line is drawn at 0.04 percent, not at the higher figure that applies to ordinary drivers. The passages also note that by operating a CMV you agree to alcohol testing, which ties back to how that limit is enforced.
2. 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.
3. In cold weather, an alcohol evaporator should be checked and filled:
- Once a week.
- Every day. ✓
- Every hour.
- Once a month.
Answer: B. Every day.
Check and fill the alcohol evaporator every day during cold weather. The handbook says some air brake systems use an alcohol evaporator to put alcohol into the air system, which helps lower the chance of ice forming in valves and other parts in cold weather. Ice in the system can stop the brakes from working. For that reason, the cold-weather instruction is to check the alcohol container and fill it as needed each day. Daily air tank drainage is still required unless the system has automatic drain valves.
4. It is illegal to operate a CMV with a minimum blood alcohol concentration (BAC) of:
- 0.01 percent.
- 0.04 percent. ✓
- 0.08 percent.
Answer: B. 0.04 percent.
5. 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.
6. Which of the following is not a sign of a person being drowsy?
- Frequent blinking
- Drifting from your lane
- Feeling hungry ✓
- Yawning
Answer: C. Feeling hungry
Feeling hungry is not a sign of drowsiness; the handbook's fatigue warnings include drifting from your lane and feeling restless or irritable. Feeling hungry is not among the fatigue warning signs the Texas CDL Handbook gives. The handbook tells drivers to stop and rest when they notice signs such as drifting from the lane, following too closely, hitting a shoulder rumble strip, trouble remembering the last few miles, missing exits or signs, or feeling restless and irritable. It describes fatigue as physical or mental tiredness that impairs vision and judgment. Hunger is not listed as an alertness warning, while lane drifting is directly named.
7. Texting while driving a CMV is:
- Acceptable if the text is work-related.
- Acceptable if there are fewer than 10 words in the text message.
- Encouraged because it is safer than talking on the phone.
- Prohibited. ✓
Answer: D. Prohibited.
Texting while driving a CMV is prohibited. The handbook says federal rules prohibit CMV drivers from texting while operating in interstate commerce, and motor carriers may not require or allow it. It also treats texting as a serious distraction and says it is riskier than talking on a phone. The passages give only a narrow exception for contacting law enforcement or emergency services. They do not create exceptions for work-related messages or short messages, so the correct choice is that texting is prohibited.
8. Distracted drivers may be:
- Staying within their lanes.
- Traveling at consistent speeds.
- Preoccupied with using their cell phones. ✓
- Not talking to anyone else in their vehicles.
Answer: C. Preoccupied with using their cell phones.
Distracted drivers may be preoccupied with using their cell phones. The handbook tells you to watch for other drivers who are busy with things like maps, food, cigarettes, or a phone. It lists that kind of preoccupation as a sign of a distracted driver, along with drifting and uneven speed. That matches the choice about cell phone use. Recognizing distraction early helps you perceive and react in time to avoid a crash, and you should give that driver room.
9. Which of the following indicates drowsy driving?
- Eyes going out of focus by themselves
- Having trouble keeping your head up
- Drifting from lane to lane
- All of the above ✓
Answer: D. All of the above
10. How can you avoid becoming drowsy on a trip?
- Get about three hours of sleep beforehand.
- Plan ahead, including stopping points. ✓
- Do not build exercise into your daily routine.
- Schedule the trip at night.
Answer: B. Plan ahead, including stopping points.
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Source
Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook