AIR BRAKES CDL PRACTICE TEST - OREGON
6.
To check the slack adjusters:
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Park on level ground and chock the wheels, release the parking brakes and pull hard on each slack adjuster. The slack adjuster shouldn't move more than one inch.
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park downhill and see if the vehicle rolls.
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check the air hoses connected to the brake chambers to make sure they aren't cut or worn.
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None of the above.
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7.
Some air brake systems have an alcohol evaporator to:
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reduce the stopping power of the vehicle.
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prevent ice from forming in the brake system.
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force the brake shoes away from one another.
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reduce the danger of slipping.
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8.
Most heavy-duty vehicles use:
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triple air brake systems.
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dual air brake systems.
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single air brake systems.
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pump-the-brake systems.
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9.
The air compressor is connected to:
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the transmission.
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the radiator.
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the engine.
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the suspension system.
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10.
Which of the following is not a type of retarder?
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Exhaust
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Pressure
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Hydraulic
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Electric
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