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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. To make sure you know how to inspect your tank vehicle, you should:
use a helper whenever possible.
check the vehicle's operator manual.
phone the manufacturer before the inspection.
2. If you are being tailgated, you should do all of the following except:
Increase your following distance
Reduce your speed gradually
Turn on your taillights
3. Right after it starts to rain, the road is very slippery. Why?
Because black ice may form on the road.
Because the water mixes with oil left on the road by vehicles.
Because rain is very slippery.
4. To prevent rollover, you should:
put the lightest parts of the cargo under the heaviest parts.
place the cargo near the rear of the trailer.
keep the cargo as close to the ground as possible.
5. What shape are placards used for transporting hazardous materials?
6. If corrosive materials leak during transportation, the parts of the vehicle exposed to corrosives must:
be washed with water.
be left to air dry.
be washed with oil.
7. 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:
the tracks are not clear.
you can drive completely through the crossing without stopping.
there is oncoming traffic.
8. To know if your vehicle is equipped with ABS, look for:
the ABS logo on the steering wheel.
a yellow ABS malfunction lamps on the instrument panel.
an ABS placard.
9. Placards must be placed:
on the rear only.
on the front only.
on the front, rear and both sides of the vehicle.
10. You must know the outage requirement when hauling liquids in bulk. Why?
Some of the heaviest liquids don't need any outage.
You must never leave room for the expanding liquid.
Different liquids expand by different amounts as they warm.
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HI CDL Tanker Endorsement

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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