AIR BRAKES CDL PRACTICE TEST - MONTANA
6.
The space under a heavily loaded vehicle can be very small. This can cause problems:
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on dirt roads.
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on unpaved yards.
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when crossing railroad tracks.
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All of the above.
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7.
The ________ brake system applies and releases the brakes when the driver uses the brake pedal during normal driving.
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anti-lock
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parking
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service
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emergency
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8.
In a dual-air system - with engine at operating RPM, the pressure should build from 85 to 100 psi within how many seconds?
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60
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20
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45
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12
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9.
ABS brakes help you:
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downshift before starting down a hill.
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avoid wheel lock up.
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find an escape route when the service brakes fail.
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lock up the wheels in an emergency stop.
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10.
With the controlled braking method, you:
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push down on the brake pedal as hard as you can so that the wheels the lock up.
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apply the brakes all the way and release brakes when the wheels the lock up.
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apply the brakes as hard as you can without locking the wheels.
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None of the above.
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