WY CDL AIR BRAKES PRACTICE TEST
11.
Which of the following is not a type of retarder?
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Electric
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Hydraulic
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Exhaust
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Pressure
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12.
When driving in hot weather, drivers should inspect tires:
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every 3 hours or every 75 miles.
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every 2 hours or every 100 miles.
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every 4 hours or every 200 miles.
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every hour or every 50 miles.
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13.
Some air brake systems have an alcohol evaporator to:
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force the brake shoes away from one another.
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reduce the stopping power of the vehicle.
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reduce the danger of slipping.
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prevent ice from forming in the brake system.
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14.
How do you test hydraulic brakes for leaks?
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Pull forward against parking brake to make sure the hydraulic brakes holds.
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Pump the brake pedal ten times and see if it holds.
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Pump the brake pedal three times, then apply firm pressure to the pedal and hold for five seconds. The pedal should not move.
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None of the above.
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15.
The total stopping distance for vehicles with air brake systems is made up of __ different factors.
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3
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5
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2
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4
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