NH CDL PRACTICE TEST - GENERAL KNOWLEDGE
31.
HAZMAT placards are:
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speed signs
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optional signs
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warning signs
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regulatory signs
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32.
With the controlled braking method:
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you use the parking brake to lock the wheels.
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you lightly tap the brakes.
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you apply your brakes as hard as possible without locking the wheels.
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you apply your brakes all the way and release the brakes when the wheels lock up.
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33.
_____ is a thin layer of ice that forms on road surfaces.
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Black ice
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Blue ice
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White ice
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Grey ice
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34.
If you hear a loud loud "bang" and the steering feels "heavy", you should:
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check your rearview mirrors to see if you have a flat tire.
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pump the brakes until the vehicle has slowed down.
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hold the steering wheel firmly and stay off the brake.
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brake hard and pull off the road.
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35.
The weight of a truck:
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is not as important as the vehicle's center of gravity in determining stopping distance.
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has no effect on stopping distance.
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has an impact on stopping distance.
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None of the above.
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36.
Loose engine belts will:
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improve fuel efficiency.
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should not be tightened.
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not turn the water pump and/or fan properly, which will result in overheating.
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will make it easier to stop quickly.
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37.
What is a pull up when referring to truck driving?
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When a driver stops and pulls forward to get a better position.
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A specific maneuver used to decelerate smoothly in the exit lane.
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A driving maneuver used to pull your vehicle over to the side of the road and stop.
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Using the speedometer to know when to shift up.
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38.
ABS:
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gives you more control over the vehicle during braking.
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is not required on newer trucks.
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increases your normal braking capability.
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is not available for doubles and triples.
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39.
Two of the most common causes of tire fires are:
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Driver smoking and bleeding tar.
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Duals that touch and under-inflated tires.
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Over-inflated tires and duals that touch.
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Loose lug nuts and duals that touch.
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40.
The trailer hand valve should be used:
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only on slippery surfaces.
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only to test the trailer brakes.
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only when applying the brakes hard.
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only in an emergency.
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