The parking brake must be always be used.
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The parking brake should never be used.
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Windows in the cab should be lowered.
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Number of questions: | 25 |
Passing score: | 20 |
The parking brake must be always be used.
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The parking brake should never be used.
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Windows in the cab should be lowered.
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Will always affect
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May not affect
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Is caused by
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Turning on the engine and applying the trailer hand brake.
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Rapidly pressing and releasing the brake pedal.
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Removing wheel chocks and disengaging the parking brake.
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Slack adjuster
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One-way check valve
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Tractor protection valve
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Mechanical force.
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Air pressure.
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Gravity.
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Are necessary for the proper function of the system.
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Should take up about 10 percent of the tank.
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Should be removed regularly.
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