ARKANSAS CDL AIR BRAKES PRACTICE TEST
11.
A broken exhaust system:
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can let poisonous carbon monoxide to leak into the cab.
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poses no threat to the driver.
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does not cause problems.
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can improve fuel efficiency.
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12.
The supply pressure gauges tell you how much air pressure:
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is in the air tanks.
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is going to the brake chambers.
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is in the air brakes.
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you are applying to the brakes.
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13.
If you are feeling sleepy, you should:
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drive faster.
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get some coffee.
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pull off the road and rest.
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slow down.
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14.
You are going down a steep grade. Once the vehicle is in the proper low gear, you should brake just hard enough to feel a slowdown, and then release the brakes when your speed has been reduced to ____ below your safe speed.
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15 mph
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5 mph
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10 mph
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20 mph
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15.
_________ must have a low air pressure warning signal.
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Vehicles with air brakes built after 2005
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Vehicles with air brakes built after 2010
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Only vehicles with air brakes built before 2015
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All vehicles with air brakes
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