AIR BRAKES CDL PRACTICE TEST - HAWAII
11.
Air tanks usually hold enough compressed air to allow the brakes to be used _________ even if the compressor stops working.
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for one stop
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several times
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for one day
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12.
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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5 mph
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15 mph
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10 mph
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13.
The air storage tanks:
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are used to hold compressed air.
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are connected to the engine through gears or a v-belt.
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stop the compressor from pumping air.
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14.
Service brakes should:
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always be checked before applying the brakes.
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be checked before each trip.
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only be checked by a mechanic.
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15.
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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100 psi
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150 psi
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50 psi
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