CDL AIR BRAKES PRACTICE TEST - OHIO
11.
An anti-lock braking system (ABS):
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helps you avoid wheel lock up.
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helps you avoid skids caused by over braking.
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All of the above.
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12.
If you must drive through a deep puddle you should:
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slow down and place transmission in a low gear.
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apply the brakes until your speed reaches 40 mph.
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speed up to get through the puddle as quickly as possible.
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13.
At passive railroad crossings, even if there are active railroad signals that indicate the tracks are clear, you must _________ to be sure it is safe to proceed.
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listen, look and stop
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stop, look, and listen
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go, stop and listen
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14.
Most hydraulic brake failures occur for one of two reasons, one of which is:
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excessive downshifting.
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loss of hydraulic pressure.
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relying too much on the engine braking effect.
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15.
Which of the following is NOT a reason for hydraulic brake failure?
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Loss of hydraulic pressure
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Brake fade on long hills
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Stab braking
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