CDL AIR BRAKES PRACTICE TEST - VIRGINIA
11.
If you are being tailgated, you should:
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avoid quick changes.
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increase your following distance.
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All of the above.
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12.
If the air tanks are not drained:
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the water can freeze in cold
weather and cause brake failure.
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your speed must be reduced to 5 MPH below your “safe” speed.
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the air pressure in the tanks is reduced.
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13.
The safety valve is usually set to open at:
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125 psi
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200 psi
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150 psi
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14.
You can be sure that your vehicle is equipped with ABS:
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if the vehicle was manufactured after 2000.
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if the vehicle was manufactured after 1998.
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if your company requires the use of antilock brakes in its policies.
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15.
The best way to know what's going on behind and to the sides of your vehicle is to:
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use the rear view camera.
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lean out of the window.
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check your mirrors regularly.
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