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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. When traveling with Division 1.1, 1.2, or 1.3 explosives, do not park within _____ of a building.
300 feet
50 feet
150 feet
2. When you see you will need to slow down, you can warn drivers behind you by:
slamming on the brakes.
turning on the right turn signal.
tapping the brakes a few times.
3. If your placarded trailer has dual tires, you should check the tires:
once every 3 months.
at the beginning of each trip and each time the vehicle is parked.
once every 500 miles.
4. Which of the following will NOT help you prevent rollover?
Keeping the cargo as close to the ground as possible.
Using the controlled braking method.
Driving slowly around turns.
5. Which of the following statements about backing heavy vehicles is true?
Always back as quickly as possible.
You should avoid backing whenever you can.
Back to the right side so that you can see better.
6. Hazardous materials are labelled with a __________ label.
7. If a tire fails while you are driving, you should:
stop on the roadway if possible.
stay off the brake until your vehicle has slowed down.
call your supervisor for instructions.
8. If the letter "G" appears in Column 1 of the Hazardous Materials Table, the description must also include:
the technical name of the HazMat.
the source of the HazMat.
the hazard class or division.
9. Unbaffled tanks usually transport:
milk and other food products.
10. Brake lag is:
the amount of air pressure required to stop the vehicle.
the distance your vehicle will travel, in ideal conditions, while you are braking.
the time required for the air brakes to work after the brake pedal is pushed.
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OH Tanker Test

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