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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 Dakota CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The SD tanker test covers the following sections of the South Dakota CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this SD tanker practice test now to prepare for the actual test!
1. Retarders:
reduce the danger of slipping.
improve gas mileage.
reduce braking distance.
help slow a vehicle, reducing the need for using brakes.
2. Exhaust system parts should NOT:
rub against fuel system parts.
be loose.
rub against tires.
All of the above.
3. If your trailer starts to skid, you should:
lock the brakes.
release the brakes.
steer in the opposite direction.
pump the brakes.
4. Which of the following is a clue suggesting a shipment of HazMat?
Tanks with diamond labels or placards on the premises.
Type of package is being shipped.
The type of business is the shipper is in.
All of the above.
5. If your brakes fail while you are driving on a downgrade, you should:
take the least hazardous escape route you can.
use an escape ramp if it's available.
immediately start looking outside your vehicle for something to stop it.
All of the above.
6. Which of the following statements about tank vehicles is true?
Un-baffled liquid tankers have bulkheads in them with holes that let the liquid flow through.
Baffled liquid tanks have nothing inside to slow down the flow of the liquid.
Baffled liquid tanks have bulkheads in them with holes that let the liquid flow through.
Hauling liquids in tanks requires special skills because of the low center of gravity.
7. If you experience a loss of hydraulic pressure, you should do all of the following except:
Put the transmission in Neutral
Pump the brakes
Use the parking brake
8. Baffled liquid tanks:
have bulkheads with holes that let the liquid flow through.
have nothing inside to slow down the flow of the liquid.
have bulkheads in them to allow the liquid to move freely.
are usually those that transport food products.
9. When the wheels of a trailer lock up:
ABS will increase stopping power.
the trailer will tend to swing around.
the vehicle will gradually come to a complete stop.
All of the above.
10. Shippers must warn drivers and others about the material's hazards:
by putting hazard warning labels on packages.
by placing a red triangle with an orange center on the vehicle.
by placing the transmission in Neutral.
by making a written report each day on the condition of the material.
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SD CDL Tanker Endorsement

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