Only when the trailer is carrying a load
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Only to test the trailer’s brakes
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Only in inclement weather when the trailer may skid
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Number of questions: | 20 |
Passing score: | 16 |
Only when the trailer is carrying a load
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Only to test the trailer’s brakes
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Only in inclement weather when the trailer may skid
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Pulling the yellow, diamond-shaped knob.
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Releasing air with the brake pedal.
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Unlocking the trailer doors.
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A valve to keep air in the brake system should there be a bad leak
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A valve that prevents a truck from being stolen
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A valve that prevents the driver from driving too fast
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Supply the trailer with air.
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Deactivate the air brakes.
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Prevent the vehicle from skidding.
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Quick, sudden stops.
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Sharp turns.
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Quick accelerations.
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Slow, planned stops.
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Pump the brakes.
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Use extra braking force to ensure the brakes kick in.
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Brake as you would without anti-lock brakes.
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When a vehicle’s front wheels follow a different path than its rear wheels
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When a vehicle's wheels all follow the exact same path
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When a load shifts during a turn
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When a vehicle's wheels run over a curb during a turn
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