Modulating control valve
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Trailer air supply control
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Relay valve
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Number of questions: | 50 |
Passing score: | 40 |
Modulating control valve
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Trailer air supply control
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Relay valve
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Is usually extra alert.
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Is usually more conscientious than a typical driver.
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May be slower to make critical decisions than a typical driver.
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Turn on the lights.
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Turn off the vehicle.
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Push down the brake pedal.
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With the first drink.
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Only after several drinks have been consumed.
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At the legal limit.
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Only when there may be a problem.
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Infrequently.
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Regularly.
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The time required for the brakes to work after the brake pedal is pressed
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The distance between the brake pedal and the floor
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The amount of air pressure used to stop the vehicle
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Are not allowed on a vehicle.
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Hold compressed air for the brakes.
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Should be drained of excess air after every trip.
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