AIR BRAKES CDL PRACTICE TEST - MISSOURI
16.
How do you test hydraulic brakes for leaks?
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Pump the brake pedal ten times and see if it holds.
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Pull forward against parking brake to make sure the hydraulic brakes 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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17.
When driving on slippery roads, you should NOT:
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try to anticipate stops early.
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use the engine brake.
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go slowly.
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18.
The supply pressure gauges tell you how much air pressure:
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is going to the brake chambers.
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is in the air tanks.
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you are applying to the brakes.
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19.
When confronted by an aggressive driver, you should:
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avoid eye contact.
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call the police, if you have a cell phone and can do it safely.
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All of the above.
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20.
The air storage tanks:
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stop the compressor from pumping air.
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are connected to the engine through gears or a v-belt.
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are used to hold compressed air.
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