AIR BRAKES CDL PRACTICE TEST - WEST VIRGINIA
6.
The application pressure gauge shows:
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how much air pressure you are applying to the brakes.
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how much pressure the relay valves should send to the trailer brakes.
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how much pressure is in the air tanks.
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All of the above.
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7.
How many reflective triangles/emergency reflectors should you carry?
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2
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4
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1
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3
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8.
The most common foundation brakes found on vehicles with air brakes are the:
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S-cam brakes.
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parking brakes.
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disc brakes.
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wedge brakes.
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9.
If your ABS fails:
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you will have no brake function, and could lose control.
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you will still have normal brake functions.
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your tires might grab unexpectedly and you could lose control.
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the first step is to get the vehicle off the road and stop.
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10.
When the air pressure is built up to governor cutoff, the air leakage rate for combination vehicles with the engine off and the foot brake fully applied should be less than_____ in one minute.
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2 psi
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3 psi
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4 psi
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5 psi
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