CDL AIR BRAKES PRACTICE TEST - MARYLAND
11.
To check slack adjusters on S-cam brakes, you should:
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use gloves and pull hard on each slack adjuster you can reach.
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check that the spring brakes come on automatically.
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press the brake pedal and listen for any strange noises.
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All of the above.
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12.
Antilock brakes:
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let you drive faster.
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decrease your stopping distance.
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help you stop faster.
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None of the above.
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13.
Empty trucks:
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are higher than loaded trucks.
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have less traction.
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require greater stopping distances.
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All of the above.
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14.
Brake lag is:
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the distance your vehicle will travel, in ideal conditions, while you are braking.
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the amount of air pressure required to stop the vehicle.
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the time required for the air brakes to work after the brake pedal is pushed.
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the distance your vehicle will continue to travel, in ideal conditions, before you hit the brakes.
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15.
Most heavy-duty vehicles use:
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triple air brake systems.
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single air brake systems.
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pump-the-brake systems.
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dual air brake systems.
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