WV CDL AIR BRAKES PRACTICE TEST
11.
The trailer hand valve should:
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be used in driving.
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never be used to test the trailer brakes.
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never be used for parking.
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All of the above.
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12.
Before leaving your vehicle unattended, you should:
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Apply the parking brake.
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Remove the keys.
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Chock the wheels.
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All of the above.
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13.
Before starting down a hill, you should slow down and shift down:
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so you can coast downhill.
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to a gear that will cause your engine to exceed its redline.
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to a speed that you can control without using the brakes hard.
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to a gear that will cause your brakes to overheat.
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14.
The service brake applies and releases:
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the brake in an emergency situation.
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the parking brake when you use the parking brake control.
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the brake when you use the brake pedal during normal driving.
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None of the above.
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15.
When confronted by an aggressive driver, you should:
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avoid eye contact.
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make every attempt to get out of their way.
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call the police, if you have a cell phone and can do it safely.
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All of the above.
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