AIR BRAKES CDL PRACTICE TEST - NEVADA
11.
Before driving a vehicle with a dual air brake system, you should allow time for the air compressor to build up a minimum of ____ pressure in both the primary and secondary systems.
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150 psi
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35 psi
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100 psi
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50 psi
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12.
Brake lag is:
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the distance your vehicle will continue to travel, in ideal conditions, before you hit the brakes.
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the time required for the air brakes to work after the brake pedal is pushed.
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the amount of air pressure required to stop the vehicle.
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the distance your vehicle will travel, in ideal conditions, while you are braking.
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13.
Trailers built on or after March 1, 1998 are required to be equipped with anti-lock brakes. These trailers will have:
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red malfunction lamps on the left side.
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yellow malfunction lamps on the left side.
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yellow malfunction lamps on the right side.
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blue malfunction lamps on the right side.
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14.
To test the low pressure warning signal, you should:
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shut the engine off when you have enough air pressure, turn the electrical power on and step on and off the brake pedal until the low air pressure warning signal comes on.
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manually let the air out of your brakes and see if the signal comes on.
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pump the brakes while your vehicle is running.
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check the air hoses connected to the brake chambers to make sure they aren't cut.
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15.
Air brakes use ________ to make the brakes work.
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compressed gases
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compressed gas cylinders
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compressed oil
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compressed air
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