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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. Tank vehicles have a high center of gravity, which means:
they are very stable.
they are less likely to roll over.
they have more traction.
they are more likely to roll over.
2. When driving a 60-foot truck at 50 mph, your minimum following distance should be:
5 seconds
6 seconds
3 seconds
7 seconds
3. Emergency brakes must be held on by:
mechanical force.
dynamic pressure.
air pressure.
hydraulic pressure.
4. The service line is also called:
brake line.
power line.
control line.
cable line.
5. The hazardous materials regulations require vehicles transporting certain types or quantities of HazMat to display warning signs called:
HazMat warnings.
reflective triangles.
advance warning signs.
6. If there is a fire in your vehicle, do NOT:
park in an open area.
pull into a service station.
park away from buildings and other vehicles.
notify emergency services.
7. Strong winds can make it difficult to stay in your lane, especially when:
going into tunnels.
driving at speeds below 40 mph.
driving alongside other vehicles.
coming out of tunnels.
8. Baffled liquid tanks:
help control the forward and backward liquid surge.
make tank vehicles seem heavier than they really are.
handle the same way as tankers without baffles.
help control side to side liquid surge.
9. When parked on the side of the road, you should:
activate the right turn signal.
use the 4-way emergency flashers.
flash your brake lights.
turn off all lights.
10. If the vehicle ahead of you is smaller than yours:
it will take the same amount of time to stop.
it will usually take longer to stop.
it can probably stop faster than you can.
All of the above.
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WY Tanker Test

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