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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 Delaware CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The DE tanker test covers the following sections of the Delaware CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this DE tanker practice test now to prepare for the actual test!
1. You must know the outage requirement when hauling liquids in bulk. Why?
Different liquids expand by different amounts as they warm.
Some of the heaviest liquids don't need any outage.
You must never leave room for the expanding liquid.
All of the above.
2. If your placarded trailer has dual tires, you should check the tires:
once every 500 miles.
at the beginning of each trip and each time the vehicle is parked.
once a week.
once every 3 months.
3. When approaching a vehicle as part of a pre-trip inspection, which of the following could be a sign of trouble?
Inflated tires
Fresh oil under the vehicle
Parking brake is on
All of the above
4. Liquid surge occurs in:
overfilled tanks.
empty tanks.
partially filed tanks.
All of the above.
5. Checking the automatic transmission fluid level may require:
the engine to be running.
the 4-way emergency flashers to be activated.
you to pump the brake.
the vehicle to be parked downhill.
6. If you must stop on a one-way or divided highway, you should place warning devices _______ toward the approaching traffic.
5, 25 and 50 feet
3, 15 and 45 feet
10, 100 and 200 feet
5, 50 and 500 feet
7. In a convex mirror everything appears:
8. The hazardous materials regulations require vehicles transporting certain types or quantities of HazMat to display warning signs called:
reflective triangles.
advance warning signs.
HazMat warnings.
9. If a drawbridge does not have a signal light or traffic control attendant, you should:
get through the drawbridge as quickly as possible.
stop and look to make sure the draw is completely closed before crossing.
stop at least 5 feet before the draw of the bridge.
drive through the drawbridge with caution.
10. Even if you are not required to always stop at railroad crossings and you are sure no train is approaching, you must stop before reaching the crossing if:
there is oncoming traffic.
you can drive completely through the crossing without stopping.
the tracks are not clear.
there is no oncoming traffic.
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DE CDL Tanker Test

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