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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 Tennessee CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The TN tanker test covers the following sections of the Tennessee CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this TN tanker practice test now to prepare for the actual test!
1. Service brakes should:
be checked before each trip.
always be checked before applying the brakes.
only be checked by a mechanic.
All of the above.
2. Unbaffled tanks usually transport:
milk and other food products.
3. If driving a heavy vehicle, you should:
stay in the right lane.
avoid braking.
try to pass other vehicles going uphill.
stay in the left lane.
4. At a rest area, you discover your hazardous materials shipments is leaking. There is no phone around. You should:
never park your vehicle.
keep driving slowly until you reach a truck stop.
send someone else for help and give that person all of the necessary information.
continue driving in order to find a phone.
5. Skids caused by acceleration can usually be stopped by:
taking your foot off the accelerator.
swerving to the left.
swerving to the right.
applying the brakes firmly.
6. If there is a fire in your vehicle, do NOT:
park away from buildings and other vehicles.
park in an open area.
pull into a service station.
notify emergency services.
7. What is the most important reason to inspect your vehicle?
Vehicle inspection is required by federal and state laws.
Saving money by preventing costly repairs.
Your safety and that of other road users.
Achieving the best gas mileage.
8. If your brakes fail on a steep mountain downgrade, you should:
stay on the road and keep looking for the next available escape ramp.
slow down until your vehicle comes to a complete stop.
decide what to do as soon as you know your brakes do not work.
set the parking brake and park in an open area.
9. The regulations require that HazMat employees be trained and tested at least once every:
10 years.
5 years.
3 years.
10. What results from movement of the liquid in partially filled tanks?
Liquid waves
Liquid flow through
Liquid splashes
Liquid surge
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TN CDL Tanker Endorsement

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