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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 Hawaii CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The HI tanker test covers the following sections of the Hawaii CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this HI tanker practice test now to prepare for the actual test!
1. A full tank of dense liquid (such as some acids) may:
weigh less than a tank filled with other liquids.
exceed legal weight limits.
be subject to travel restrictions.
2. When going down a steep downgrade, you should primarily brake using:
the parking brake.
the braking effect of the engine.
the service brakes.
3. A tank endorsement is required for certain vehicles that transport:
liquids or gases.
solid materials.
4. Engine oil pressure should come up to normal within _________ after the engine is started.
five minutes
two minutes
5. In vehicles with air brakes, the two markings on a front brake limiting valve are:
high and low.
normal and slippery.
left and right.
6. Checking the automatic transmission fluid level may require:
the vehicle to be parked downhill.
the engine to be running.
the 4-way emergency flashers to be activated.
7. Older trailers do not have spring brakes. If the air supply leaks away:
there will be no emergency brakes.
the ABS won't work properly.
the trailer will stop normally.
8. Letting air out of hot tires:
will help relieve the extra pressure.
should not be done, because the pressure will be too low when the tires cool off.
will cool the tires down.
9. Shipping papers should be:
easily seen from the direction they face.
placed on all sides of the vehicle.
easily seen by someone entering the cab.
10. When confronted by an aggressive driver, you should:
call the police, if you have a cell phone and can do it safely.
avoid eye contact.
All of the above.
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HI Tanker CDL Test

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