NH CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST
31.
You must have at least ________ tread depth in every major groove on front tires.
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1/16 inch
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1/2 inch
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4/32 inch
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2/32 inch
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32.
If your drive wheels begin to spin, you should:
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pump the brake pedal three times.
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use the parking brake.
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use the Anti-lock Braking System.
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take your foot off the accelerator.
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33.
Whether or not you load and secure your load yourself, you are responsible for:
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recognizing overloads and poorly balanced weight.
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knowing your cargo is properly secured.
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inspecting your cargo.
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All of the above.
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34.
If you are driving a 30 foot vehicle at 35 mph, you should leave at least _______ between your vehicle and the vehicle in front of you.
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4 seconds
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3 seconds
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2 seconds
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1 seconds
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35.
Broken suspension parts:
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should not be a concern unless you are driving on steep grades.
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can be extremely dangerous.
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hold up the vehicle and its load and keep the axles in place.
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All of the above.
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36.
Which of the following may have reduced the clearances since the heights were posted at bridges and overpasses?
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Traffic
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Repaving of the road
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Rain
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The weight of a cargo
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37.
Retarders:
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apply their
braking power whenever
you push on the accelerator.
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help slow a vehicle and reduce brake wear.
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help prevent accidents by applying extra braking power to the non-drive wheels.
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All of the above.
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38.
When driving at night, you should dim your lights within ______ of an oncoming vehicle.
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250 feet.
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400 feet.
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500 feet.
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300 feet.
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39.
When should you be particularly careful about high winds?
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When driving in winter
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When emerging from a tunnel
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When driving at night
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When going downhill
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40.
During a pre-trip inspection, to check your lights you should:
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with the engine running, put the vehicle in a forward gear and turn on the headlights.
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check the yellow malfunction lamps on the instrument panel.
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with the engine running, turn on the headlights and 4-way emergency flashers, and get out of the vehicle.
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turn off the engine, turn on the headlights and 4-way emergency flashers, and get out of the vehicle.
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