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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 New Hampshire CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The NH tanker test covers the following sections of the New Hampshire CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this NH tanker practice test now to prepare for the actual test!
1. Letting air out of hot tires:
will cool the tires down.
will have no effect on the tires.
should not be done, because the pressure will be too low when the tires cool off.
will help relieve the extra pressure.
2. Which of the following will NOT help you prevent rollover?
Keeping the cargo as close to the ground as possible.
Using the controlled braking method.
Driving slowly around turns.
All of the above.
3. When the wheels of a trailer lock up:
the trailer will tend to swing around.
the vehicle will gradually come to a complete stop.
ABS will increase stopping power.
All of the above.
4. The amount of liquid to load into a tank depends on:
legal weight limits.
the amount the liquid will expand in transit.
the weight of the liquid.
All of the above.
5. Hazardous materials include all of the following except:
6. The two ways of knowing when to shift are:
engine speed and road speed.
weather and road conditions.
oil pressure and road conditions.
following distance and traffic speed.
7. When approaching a vehicle as part of a pre-trip inspection, which of the following could be a sign of trouble?
Fresh oil under the vehicle
All of the above.
Inflated tires
None of the above.
8. When driving a 60-foot truck at 50 mph, your minimum following distance should be:
3 seconds
7 seconds
6 seconds
5 seconds
9. In vehicles with air brakes, the two markings on a front brake limiting valve are:
high and low.
normal and slippery.
wet and dry.
left and right.
10. Which of the following statements about retarders is NOT correct?
Retarders help slow a vehicle, reducing the need for using brakes.
RetardersĀ help you avoid skids.
Retarders reduceĀ reduce brake wear.
You should turn the retarder off whenever the road is wet, icy, or snow covered.
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NH CDL 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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