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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 Delaware CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The DE tanker test covers the following sections of the Delaware CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this DE tanker practice test now to prepare for the actual test!
1. How does liquid surge affect the handling of a tank vehicle?
It makes the road slippery.
It's very important for safe handling.
It tends to push the truck in the direction the wave is moving.
It makes it easier to slow down to a safe speed.
2. Excessive use of the service brakes results in overheating. Too much heat can:
cause the brakes apply unevenly.
cause the brakes to grab.
make the brakes stop working.
cause the brakes to squeak.
3. If driving a heavy vehicle, you should:
avoid braking.
try to pass other vehicles going uphill.
stay in the right lane.
stay in the left lane.
4. In vehicles with air brakes, water and compressor oil in the bottom of the air tank:
should be added regularly.
should be drained completely.
should not be removed.
None of the above.
5. In the Hazardous Material Table, what is in Column 3?
The special provisions of the material
The HazMat shipping name
The HazMat description
The hazard class or division
6. Placards must be:
readable from all 4 directions.
turned upright on a point.
in a diamond shape.
All of the above.
7. Rims with welding repairs:
are acceptable only when carrying a heavy load.
can be used for tires in the front of the vehicle.
are not safe.
can be used for tires in the rear of the vehicle.
8. Dual tires:
should always come in contact with each other.
should not come in contact with each other.
should come in contact with each other whenever possible.
are dangerous.
9. You are driving on a steep downgrade in the proper low gear. Your "safe" speed is 40 mph. When your speed reaches 40 mph, you should:
apply the brakes to gradually reduce your speed to 35 mph, and then release the brakes.
maintain your current speed, and apply the brakes when you reach 50 mph to gradually reduce your speed to 40 mph.
increase your speed to approximately 45 mph, and then apply release the brakes.
apply the brakes to quickly reduce your speed to 25 mph, and then release the brakes.
10. To warn drivers behind you when you see you'll need to slow down, you should:
use your headlights.
flash the brake lights.
turn off your lights.
sound your horn.
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Tanker Test - DE CDL

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