CDL AIR BRAKES PRACTICE TEST - CALIFORNIA
11.
At 55 mph, the total stopping distance for vehicles with air brake systems traveling in ideal conditions is:
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over 250 feet.
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over 450 feet.
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less than 250 feet.
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12.
If a load is placed on one side of the trailer:
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a rollover is more likely.
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making turns may be easier.
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the steering axle weight will be too light to steer safely.
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13.
Which of the following is NOT part of the air brake system?
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Anti-lock brake system
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Parking brake system
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Emergency brake system
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14.
The __________ keeps air from going out if the air compressor develops a leak.
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one-way check valve
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tractor protection valve
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emergency relay valve
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15.
Slack adjusters:
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should move more than one inch where the push rods attach to them.
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regulate the distance between the rear wheels.
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regulate the distance that the air brake has to travel to apply friction to the wheel.
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