CDL PRACTICE TEST - GENERAL KNOWLEDGE (KENTUCKY)
31.
The use of brakes on a steep downgrade is:
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dangerous, and should be avoided at all costs.
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much more effective than the engine braking effect.
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a supplement to the braking effect of the engine.
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the main braking factor.
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32.
Use your four-way emergency flashers:
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when stopping at railroad highway crossings.
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to warn drivers behind you that people are working on the road.
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when parked at the side of the road.
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All of the above.
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33.
Blocking _______________ to keep it from sliding.
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is used in the front, back, and/or sides of a piece of cargo
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is used only in the back of a piece of cargo
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goes from the upper part of the cargo to the floor
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None of the above.
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34.
To test the parking brake:
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turn off the engine.
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gently try to pull forward with the parking brake on.
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check that all shut-off valves are in the open position.
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step on and off the brake pedal to reduce air pressure.
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35.
When backing, you should:
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only use mirror on the driver's side.
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use the mirrors on both sides.
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back and turn toward the right side whenever possible.
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back quickly.
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36.
Before driving a vehicle with a dual air system, allow time for the air compressor to build up a minimum of ____ pressure in both the primary and secondary systems.
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25 psi
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100 psi
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75 psi
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50 psi
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37.
Headlights:
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should be out of adjustment.
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should not be used when driving at night.
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must be turned on a half hour before sunset to a half hour after sunrise.
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can blind other drivers.
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38.
An alcohol evaporator:
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used to reduce the chance of the front wheels skidding.
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protects the air brake system from too much pressure.
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is used to reduce the risk of ice in air brake valves and other parts during cold weather.
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to hold compressed air.
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39.
Under a pressurized system, the radiator cap:
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should never be removed until the system has cooled.
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should never be hot.
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should be removed when the coolant is hot.
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should always be cool.
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40.
Which of the following statements is true?
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Short-term or daily rental truck drivers are often not used to driving a large vehicle and may pose a hazard to you.
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You can always trust other drivers to turn in the direction that their turn signal is indicating.
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Delivery truck drivers are professionals and do not pose any hazard to you.
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You do not have to worry about individuals driving cars with out-of-state license plates.
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