CDL AIR BRAKES PRACTICE TEST - IDAHO
16.
Brake lag is:
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the distance your vehicle will travel, in ideal conditions, while you are braking.
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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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17.
If are being followed closely, you should:
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decrease your following distance.
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increase your following distance.
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change lanes quickly.
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18.
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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check your mirrors regularly.
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lean out of the window.
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19.
To operate a vehicle equipped with air brakes, you must pass the air brakes knowledge test. Why?
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If you don't pass the air brakes test, you will be restricted to driving vehicles without air brakes.
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All trucks have air brakes.
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If you don't pass the air brakes test, you can't get a CDL.
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20.
After supplying air to the trailer brake system, you should check the brake system for crossed air lines by:
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applying and releasing the trailer brakes and listening for the sound of trailer brakes.
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shutting the engine off so you can hear the brakes.
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All of the above.
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