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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 Alabama CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The AL tanker test covers the following sections of the Alabama CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this AL tanker practice test now to prepare for the actual test!
1. A tank endorsement is required for certain vehicles that transport:
solid materials.
liquids or gases.
None of the above.
2. In baffled tanks, the baffles help to control:
the top-to-bottom liquid surge.
control the brakes.
the forward and backward liquid surge.
the side-to-side liquid surge.
3. While crossing railroad tracks, you should:
not shift gears.
shift down.
shift up.
stop, then look and listen for the train.
4. It may not be safe to operate at legal maximum weights:
on two-way streets.
in hot weather.
during bad weather or in mountains.
on highways.
5. The steering wheel should:
be held firmly with the left hand.
be held with one hand at a time.
be held firmly with both hands.
be held firmly with the right hand.
6. Which of the following statements about tankers is true?
Unbaffled liquid tankers have nothing inside to slow down the flow of the liquid.
When loading and unloading smaller tanks, do not put too much weight on the front or rear of the vehicle.
A high center of gravity makes a vehicle more prone to rollover accidents.
All of the above.
7. When checking the engine compartment:
the parking brake should be on.
wheels should not be chocked.
the engine should be running.
you should put the gearshift in neutral.
8. Which of the following statements about backing heavy vehicles is true?
Always back as quickly as possible.
You should avoid backing whenever you can.
The helper should stand where you cannot see the helper.
Back to the right side so that you can see better.
9. Column 2 in the Hazardous Material Table contains:
the identification numbers.
the HazMat description and shipping name.
the hazard class or division.
the label codes.
10. Texting while operating a commercial motor vehicle is:
acceptable if you are contacting your supervisor.
acceptable if you are contacting your dispacther.
only allowed at night.
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AL Tanker CDL Test

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