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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 Wyoming CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The WY tanker test covers the following sections of the Wyoming CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this WY tanker practice test now to prepare for the actual test!
1. Hauling liquids in tanks requires special skills because of:
a greater chance of rollover.
liquid movement.
the high center of gravity.
All of the above.
2. When driving tank vehicles, because of the high center of gravity and the surge of the liquid, you must:
stop quickly.
start quickly.
swerve often.
start slowly.
3. To apply the parking brakes:
pull the parking brake control knob out.
push the brake pedal three times.
place the parking brake control knob in Neutral.
push the parking brake control knob in.
4. Liquid surge occurs:
if you are caught in strong winds.
in empty tanks.
in full tanks.
in partially filled tanks.
5. Black ice is:
a thick layer of ice.
ice that makes the road look dry.
a thin layer of black ice.
None of the above.
6. Class 2 hazardous materials include:
Flammable gases
Corrosive materials
Radioactive materials
7. Hazardous materials include all of the following except:
8. Before loading or unloading any flammable liquids, you should:
turn off the engine.
start the engine.
turn on the headlights.
light up a cigarette.
9. If a tire fails while you are driving, you should:
stop on the roadway if possible.
call your supervisor for instructions.
stay off the brake until your vehicle has slowed down.
brake as hard as possible.
10. To prevent rollover, you should:
place the cargo near the front of the trailer.
place the cargo near the rear of the trailer.
keep the cargo as close to the ground as possible.
put the lightest parts of the cargo under the heaviest parts.
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Tanker Test - WY CDL

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