General Driving Knowledge — 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. General Driving Knowledge: 138 questions.
Questions that do not fit a single topic: lane use, turning, signalling and other rules of the road.
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 | General Driving Knowledge |
| License test | Ohio CDL permit (CLP) knowledge tests |
| Topic questions | 138 (36% 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 (138)
1. If there is a fire in your vehicle, you should not:
- Park in an area away from buildings, trees, brush, and other vehicles.
- Pull into a service station. ✓
- Notify emergency services of your problem and your location.
Answer: B. Pull into a service station.
If your vehicle is on fire, you should not pull into a service station. The handbook's fire section tells you to park in an open area, away from buildings, trees, brush, other vehicles, and anything else that could catch fire. Right after that instruction it adds a direct warning not to pull into a service station. The same passage also says to call emergency services with your problem and location. So among these choices, driving into a service station is the one action the handbook rules out, while parking in the open and calling for help are both steps it tells you to take.
2. To obtain a hazardous materials endorsement, a person must be:
- A U.S. citizen or permanent resident. ✓
- Perform their own background check.
- New to the United States.
Answer: A. A U.S. citizen or permanent resident.
To obtain a hazardous materials endorsement, you must be a U.S. citizen or lawful permanent resident. The handbook says a hazardous materials endorsement can be denied or lost if you are not a lawful permanent resident of the United States or if you renounce your U.S. citizenship. It also says you must submit fingerprints and undergo a background check. So the endorsement requires citizenship or lawful permanent resident status, along with the required screening.
3. What is road rage?
- Operating a motor vehicle with the intent of doing harm to others ✓
- Operating a motor vehicle that is deemed unsafe
- Operating a motor vehicle that has not been inspected
Answer: A. Operating a motor vehicle with the intent of doing harm to others
Road rage is operating a motor vehicle with the intent of doing harm to others, such as assaulting a driver or their vehicle. The handbook passage separates aggressive driving from road rage. Aggressive driving is described as selfish, bold, or pushy driving without regard for other people's rights or safety, such as abrupt lane changes. Road rage goes further: it is operating a vehicle with the intent to do harm to others or to physically assault a driver or their vehicle. So the key element in the definition is the intent to cause harm, not the condition of the vehicle.
4. Keeping cargo centered on a rig can:
- Help you drive faster.
- Prevent a rollover. ✓
- Make turns more dangerous.
Answer: B. Prevent a rollover.
Keeping cargo centered on a rig helps prevent a rollover. The handbook's rollover-risk section says a load that sits off to one side can make a trailer lean, and that lean makes a rollover more likely. It lists keeping the cargo centered and spread out as one of the things that helps prevent rollover, along with keeping the load close to the ground and driving slowly around turns. So centering the load is a stability measure, not a speed measure.
5. If a bus has stopped at an intermediate stop or its final destination, passengers should be told:
- The location. ✓
- The bus company’s name.
- The name of the driver.
Answer: A. The location.
6. When traveling long distances, you should:
- Take rest breaks. ✓
- Drive as fast as possible.
- Drive through the night.
Answer: A. Take rest breaks.
When traveling long distances, you should take rest breaks. The handbook lists driving long distances without proper rest breaks as a cause of fatigue. To maintain alertness on long trips, it says to take periodic breaks about every 100 miles or two hours. It also says to stop driving and get rest or take a nap when needed. That makes planned rest breaks the supported choice for staying alert on a long drive.
7. A driver should ensure that:
- The shipping paper matches the markings and labels on packages. ✓
- The shipping paper is written in code.
- All packages are labeled as poison.
Answer: A. The shipping paper matches the markings and labels on packages.
A driver should ensure the shipping paper matches the markings and labels on packages. The handbook tells drivers to compare the shipping paper with the markings and labels on the packages. It also says the shipper must show the correct basic description on the paper and verify that the packages carry the proper labels. Package markings also need to use the same hazardous material name as the shipping paper. That makes the paperwork and the package agree, so the driver can check that the shipment is described and labeled consistently.
8. If a vehicle is carrying hazardous cargo, placards must be placed:
- Only on the front of the vehicle.
- On the front, rear, and sides of the vehicle. ✓
- Only on the driver’s side of the vehicle.
Answer: B. On the front, rear, and sides of the vehicle.
Placards must be placed on the front, rear, and both sides of the vehicle when it carries hazardous cargo. The handbook says a placarded vehicle must carry at least four identical placards. It places them on the front, the rear, and both sides so they can be read from all four directions. That layout is what the correct choice describes. The point of placards is to warn others about the hazard class of the cargo, so the signs need to face outward on each side and each end.
9. When loading containers of hazardous materials, you should not use:
- Dollies.
- Hooks. ✓
- Straps.
Answer: B. Hooks.
You should not use hooks when loading containers of hazardous materials. The handbook's loading and unloading rules say to protect hazardous materials containers and to avoid any tool that could damage them, and it names hooks specifically as a tool not to use. Damaged packaging is the danger the rule guards against, and the same section tells you not to transport leaking packages. So hooks are the tool you keep away from these containers, while nothing in the passages forbids dollies or straps.
10. During a trip, the ____ should be open.
- Rear service line shut-off valve
- Rear supply line shut-off valve
- Inner shut-off valves ✓
Answer: C. Inner shut-off valves
During a trip, the inner shut-off valves should be open. The handbook says shut-off valves control air in the service and supply lines at the back of trailers. Check that all shut-off valves are open except the ones at the back of the last trailer, which must be closed. For doubles and triples, the valves at the rear of the front trailers are open, and the rear of the last trailer is closed. Inner shut-off valves sit between the units, so they must stay open to let air pass through the combination.
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Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook