MA CDL AIR BRAKES PRACTICE TEST
6.
If your vehicle is equipped with a front brake limiting valve, to ensure normal stopping power make sure the control is:
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in the "off" position.
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in the "slippery" position.
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in the "normal" position.
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in the "neutral" position.
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7.
Which of the following is TRUE about dual air brake systems?
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Each brake system has its own air tanks, hoses and lines.
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most heavy-duty vehicles use dual air brake systems.
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A dual air brake system has 2 separate air brake systems.
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All of the above.
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8.
Your vehicle has air brakes. To stop, you should:
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release the accelerator, push in the clutch, and shift to Neutral at the same time.
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pump the brake pedal 3 times.
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push the brake pedal down.
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pull the parking brake control knob out.
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9.
The air compressor governor:
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controls when the air storage tanks will pump air into the air compressor.
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allows the compressor to start pumping air when the tank pressure rises to the "cut-out" pressure.
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stops the compressor from pumping air.
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All of the above.
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10.
You should check air pressure and temperature gauges:
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every time you stop.
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as often as is practical.
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at the end of each trip.
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at the beginning of each trip.
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