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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 South Carolina CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The SC tanker test covers the following sections of the South Carolina CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this SC tanker practice test now to prepare for the actual test!
1. Letting air out of hot tires:
will have no effect on the tires.
will help relieve the extra pressure.
will cool the tires down.
should not be done, because the pressure will be too low when the tires cool off.
2. One reason parked delivery trucks can present a hazard is:
packages may fall out of the truck.
they are often hard to see.
their drivers are often in a hurry and may suddenly step out of their vehicle.
All of the above.
3. To prevent fatigue during long trips you should:
rely on caffeine.
take a cold shower.
take frequent breaks.
All of the above.
4. When backing, you should:
back and turn toward the right side.
back quickly.
avoid using the mirrors.
use a helper if possible.
5. Hauling liquids in tanks requires special skill because of:
danger of surge.
liquid movement.
the high center of gravity.
All of the above.
6. If the drive wheels begin to spin when accelerating, you should:
brake gently.
take your foot off the accelerator.
set the parking brake.
continue to accelerate.
7. ______ surge results from movement of the cargo in partially filled tanks.
8. When confronted by an aggressive driver, you should:
call the police, if you have a cell phone and can do it safely.
make every attempt to get out of their way.
avoid eye contact.
All of the above.
9. When parked on the side of the road, you should:
use the 4-way emergency flashers.
turn off all lights.
flash your brake lights.
activate the right turn signal.
10. Emergency brakes are:
required on all vehicles.
not required on buses.
not required on doubles.
not required on commercial vehicles with air brakes.
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SC CDL Tanker Test

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