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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. Forward-and-back surge is strongest in:
baffled tanks.
empty tanks.
bulkhead tanks.
unbaffled tanks.
2. _________ are sometimes called "smooth bore" tanks.
Unbaffled liquid tankers
Liquid tankers with baffles
Tanks made of aluminum
None of the above.
3. Which of the following will NOT help you prevent rollover?
Driving slowly around turns.
Using the controlled braking method.
Keeping the cargo as close to the ground as possible.
All of the above.
4. Which of the following statements about tankers is true?
Unbaffled liquid tankers have nothing inside to slow down the flow of the liquid.
A high center of gravity makes a vehicle more prone to rollover accidents.
When loading and unloading smaller tanks, do not put too much weight on the front or rear of the vehicle.
All of the above.
5. When checking the engine compartment:
you should put the gearshift in neutral.
the engine should be running.
wheels should not be chocked.
the parking brake should be on.
6. The manifest for transporting hazardous wastes must be:
uploaded to the cloud.
attached to the appropriate placard.
signed by hand.
appear on both sides and ends of the vehicle.
7. When transporting chlorine in cargo tanks, you must have _______ in the vehicle.
5 reflective triangles
approved goggles
an approved cell phone
an approved gas mask
8. To obtain the HazMat endorsement, you must pass a ________ background check.
Local Department of Security
Transportation Security Administration
Federal Bureau of Investigation
Law Enfrocement Agency
9. To prevent rollover, you should:
keep the cargo as close to the ground as possible.
go slowly around turns.
drive slowly around on ramps and off ramps.
All of the above.
10. Hauling liquids in tanks requires special skill because of:
danger of surge.
liquid movement.
the high center of gravity.
All of the above.
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DE CDL Tanker Endorsement

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