CDL PRACTICE TEST (VT) - GENERAL KNOWLEDGE TEST
31.
How do you test hydraulic brakes for leaks?
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Pull forward against parking brake to make sure the hydraulic brakes holds.
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Pump the brake pedal three times, then apply firm pressure to the pedal and hold for five seconds. The pedal should not move.
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Pump the brake pedal ten times and see if it holds.
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32.
When inspecting your vehicle for suspension system defects, look for:
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leaking shock absorbers.
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cracked or broken spring hangers.
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All of the above.
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33.
Which of the following statements about engine overheating is true?
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You should never remove the radiator cap or any part of the pressurized system until the system has cooled.
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Low speeds create more heat for the engine.
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You should never shut off an overheated engine until it cools.
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34.
If your trailer starts to skid, you should:
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release the brakes to get traction back.
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use the trailer hand brake (if you have one) to straighten out the rig.
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keep the rear of your vehicle close to the curb.
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35.
Which of the following will help a drinker sober up?
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Fresh air
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Time
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All of the above.
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36.
During a trip you need to inspect the cargo and its securing devices:
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every 3 hours or 150 miles.
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after every break you take.
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All of the above.
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37.
Before transporting a sealed load, you must check that:
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the placard numbers and the seal numbers match.
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the cargo is piled up.
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the load is properly secured.
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38.
Heights posted at bridges and overpasses:
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are always incorrect.
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can be incorrect.
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are always accurate.
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39.
If your vehicle thumps or vibrates heavily, it may be a sign that:
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one of the tires has gone flat.
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the brakes have failed.
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you need to shift up.
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40.
The most common type of brake is the:
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S-cam drum brake
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G-cam disc brake
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R-cam drum brake
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