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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. When driving a tanker vehicle, the best way to take a curve is to slow to a safe speed before entering the curve and then _______ as you go through the curve.
downshift to the right gear
brake lightly
speed up slightly
2. If you are being tailgated, you should:
increase your speed very gradually.
open up room in front of you.
make quick changes.
3. The service line is also called:
brake line.
cable line.
control line.
4. To avoid a crash:
stopping is not always the best thing to do.
swerving is always the worst thing to do.
stopping is always the safest thing to do.
5. Front-end header boards:
protect drivers from cargo in case of an accident or emergency stop.
should never be used.
protect drivers from spilled cargo.
6. A liquid tank is divided into several smaller tanks by bulkheads. After filling the smaller tanks, most of the weight should be in the:
front of the vehicle.
rear of the vehicle.
middle of the vehicle.
7. Before loading or unloading any flammable liquids, you should:
start the engine.
turn off the engine.
turn on the headlights.
8. Vehicles with ABS have ______ ABS malfunction lamps on the instrument panel.
9. With a dual air brake system:
each system shares air tanks.
each system has its own air tanks, hoses and lines.
each system shares the same lines and hoses.
10. How should you apply the brakes when going down a steep downgrade?
Apply the brakes as hard as you can without locking the wheels.
Apply the brakes whenever you reach your safe speed, until your speed has been reduced to 5 mph below your safe speed.
Apply the brakes when you reach the bottom of the downgrade.
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HI Tanker 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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