AIR BRAKES CDL PRACTICE TEST - IDAHO
11.
The braking power of the spring brakes:
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depends on the brakes being in adjustment.
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is not affected by the condition of the service brakes.
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is not affected by the air pressure level.
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12.
When driving in very hot weather, the heat will increase the chances of:
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loss of hydraulic pressure.
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tire failure.
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ABS malfunction.
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13.
Typically an air system is fully-charged at:
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75 psi
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25 psi
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125 psi
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14.
Which of the following is NOT part of the air brake system?
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Emergency brake system
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Anti-lock brake system
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Parking brake system
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15.
The s-cam:
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pulls the brake shoes away from the drum.
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forces the brake shoes away from one another and presses them against the inside of the brake drum.
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helps ensure that air flows to all trailers.
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