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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. When approaching a vehicle as part of a pre-trip inspection, which of the following could be a sign of trouble?
Parking brake is on
Fresh oil under the vehicle
Inflated tires
All of the above
2. You should always adjust your speed to be able to stop within:
the length of your vehicle.
30 feet.
50 feet.
the distance you can see ahead.
3. You had to drive onto the right shoulder to avoid a crash. You are now driving at 40 mph on the shoulder. How should you move back onto the pavement?
Keep moving at the present speed and steer very gently back onto the pavement.
If the shoulder is clear, stay on it until your vehicle has come to a stop, then move back onto the pavement when it is safe.
Brake hard to slow the vehicle, then steer sharply onto the pavement.
None of the above.
4. Texting while operating a commercial motor vehicle is:
only allowed at night.
acceptable if you are contacting your dispacther.
acceptable if you are contacting your supervisor.
5. Forward-and-back surge is strongest in:
bulkhead tanks.
baffled tanks.
empty tanks.
unbaffled tanks.
6. If you discover a cargo leak, you should call for help and:
use shipping papers to identify the leaking material.
try to identify the material by smell.
continue driving in order to find a truck stop.
touch the leaking HazMat to identify the material.
7. Warnings on low bridges or underpasses:
are often posted, but sometimes they are not.
are always posted.
must be posted.
None of the above.
8. Liquid surge occurs:
in full tanks.
if you are caught in strong winds.
in empty tanks.
in partially filled tanks.
9. ________ is responsible for identifying the hazard class of the material when shipping.
The shipper
The supply chain manager
The driver
The motor carrier
10. When approaching a stopped school bus, drivers must be aware that:
the bus may suddenly start up and drive into your way.
students may start to get out of the bus.
passengers may cross in front of or behind the bus.
All of the above.
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SD CDL Tanker Test

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