AIR BRAKES PRACTICE TEST - ALASKA
11.
A broken exhaust system:
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can improve fuel efficiency.
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poses no threat to the driver.
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can let poisonous carbon monoxide to leak into the cab.
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12.
Excessive use of the service brakes results in overheating and leads to:
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reduction of the brake drums.
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poor traction.
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brake fade.
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13.
If the low air pressure warning light comes on, you should:
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continue to drive normally.
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stop immediately.
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call for help.
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14.
To perform an applied leakage test, the vehicle’s air pressure should be built up to maximum pressure. Check the air gauge to see that the air pressure should drop no more than:
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2 psi for single vehicles and 5 psi for a combination of 2 vehicles.
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1 psi for single vehicles and 3 psi for a combination of 2 vehicles.
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3 psi for single vehicles and 4 psi for a combination of 2 vehicles.
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15.
If the air pressure gets too low:
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ABS will help maintain vehicle control.
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the brakes will not work.
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the brakes will lock up.
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