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The tanker endorsement applies to drivers who wish to drive a tank in Class A, B, or C CDL. To add this endorsement to your CLP/CDL, you must pass a knowledge test on the problems posed by large volume liquid cargos. The Ohio CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The OH tanker test covers the following sections of the Ohio CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this OH tanker practice test now to prepare for the actual test!
1. To prevent rollover, you should:
go slowly around turns.
keep the cargo as close to the ground as possible.
All of the above.
2. Right after it starts to rain, the road is very slippery. Why?
Because rain is very slippery.
Because black ice may form on the road.
Because the water mixes with oil left on the road by vehicles.
3. What is the main difference between portable tanks and cargo tanks?
The product is loaded or unloaded while the portable tanks are off the vehicle.
Portable tanks are not permanently attached to a vehicle.
All of the above.
4. If coolant has to be added to a system without a recovery tank, you should:
keep the engine running while adding coolant.
wait until the engine has cooled before adding coolant.
turn the radiator cap quickly to the first stop.
5. When checking the lights before driving:
you should check them from inside the vehicle.
you should turn off the engine.
make sure the parking brake is not set.
6. To apply the parking brakes:
push the parking brake control knob in.
pull the parking brake control knob out.
place the parking brake control knob in Neutral.
7. You must know the outage requirement when hauling liquids in bulk. Why?
Some of the heaviest liquids don't need any outage.
Different liquids expand by different amounts as they warm.
You must never leave room for the expanding liquid.
8. How does liquid surge affect the handling of a tank vehicle?
It tends to push the truck in the direction the wave is moving.
It makes the road slippery.
It makes it easier to slow down to a safe speed.
9. When driving trucks with trailers, drivers should:
push the brake pedal to the floor when braking.
make quick lane changes.
avoid making sudden movements with the steering wheel.
10. You are inspecting your vehicle during a trip. What should you do?
Check critical items such as tires, brakes, and lights.
Use your senses to check for problems.
All of the above.
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OH CDL Tanker Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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