CDL GENERAL KNOWLEDGE TEST (GA) - PRACTICE TEST
21.
Antilock brakes:
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let you drive faster.
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decrease your stopping distance.
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help you stop faster.
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None of the above.
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22.
When making a left turn at an intersection, you should:
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always use your horn.
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start your turn before reaching the center of the intersection.
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always take the left turn lane if there are two turning lanes.
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reach the center of the intersection before you start the left turn.
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23.
Stopping distance can be affected by:
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Temperature
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Speed
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Time of day
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All of the above.
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24.
If you are driving toward a traffic light that's been green for a long time, you should:
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maintain your current speed.
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start slowing down and be ready to stop.
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brake as quickly as possible.
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increase your speed to get through the intersection before the traffic light changes to red.
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25.
When going down long, steep downgrades, you should:
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downshifting and then use the brakes.
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only use the brakes.
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rely solely on engine braking to reduce your speed.
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try not to use the brakes.
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26.
Which surface is the most slippery?
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Wet ice
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Ice that is not wet
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Dry road
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Wet pavement
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27.
The air compressor governor:
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stops the compressor from pumping air.
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allows the compressor to start pumping air when the tank pressure rises to the "cut-out" pressure.
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controls when the air storage tanks will pump air into the air compressor.
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All of the above.
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28.
Empty trucks:
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require the same stopping distance than full trucks.
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require a greater stopping distance than full trucks.
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require a shorter stopping distance than full trucks.
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None of the above.
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29.
The vehicle inspection report:
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tells the shipper how to package the materials.
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ensures that vehicle inspections are conducted regularly.
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ensures that when the driver gets behind the wheel, the mechanic is responsible for the safe operation of the vehicle.
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tells the motor carrier about problems that may need fixing.
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30.
Which of the following is NOT a reason for hydraulic brake failure?
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Loss of hydraulic pressure
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Brake fade on long hills
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Stab braking
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All of the above.
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