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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. The amount of liquid to load into a tank depends on:
the amount the liquid will expand in transit.
the weight of the liquid.
legal weight limits.
All of the above.
2. Which of the following will NOT help you prevent rollover?
Keeping the cargo as close to the ground as possible.
Driving slowly around turns.
Using the controlled braking method.
All of the above.
3. Before entering a curve, you should:
increase your speed.
reduce your speed.
maintain your speed.
come to a complete stop.
4. Class 2 hazardous materials include:
Corrosive materials
Radioactive materials
Flammable gases
5. Never drive a tank vehicle:
with closed valves or manhole covers.
with open valves or manhole covers.
with valves or manhole covers.
None of the above.
6. On a tractor-trailer equipped with a trailer brake hand valve, the hand valve can be used to:
keep from rolling back.
hold compressed air.
reduce the chance of the front wheels skidding.
prevent movement of cargo.
7. After starting the engine, the ABS light stays on. This means:
the ABS is not working properly.
the ABS is in Neutral.
the ABS oil level is not adequate.
the ABS is working properly.
8. If a drawbridge does not have a signal light or traffic control attendant, you should:
drive through the drawbridge with caution.
stop at least 5 feet before the draw of the bridge.
get through the drawbridge as quickly as possible.
stop and look to make sure the draw is completely closed before crossing.
9. Placards must be placed:
on the rear only.
on the front only.
on the front, rear and both sides of the vehicle.
on the driver's side of the vehicle.
10. Which of the following is NOT true? The person watching the loading or unloading of a tank must:
know the hazards of the materials involved.
be alert.
know the procedures to follow in an emergency.
wear a HazMat suit.
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WY CDL Tanker Test

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