CDL Air Brakes Practice Test - Rhode Island
6.
The safety valve is usually set to open at:
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150 psi.
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200 psi.
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100 psi.
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7.
If an aggressive driver is involved in an accident down the road, you should:
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try to get their vehicle to the side of the road.
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stop a safe distance from the accident scene, wait for the police and report the behavior you witnessed.
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confront the aggressive driver.
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8.
When going down a steep downgrade, you should:
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use the parking brake.
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use a low gear, and a proper braking technique.
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avoid braking and rely on engine braking.
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9.
As part of the final air brake check, you should:
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Check air compressor governor cut-in and cut-out pressure.
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Test air leakage rate.
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All of the above.
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10.
If you must stop on a one-way or divided highway, place your warning devices:
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10 feet, 50 feet, and 150 feet toward the approaching traffic.
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100 feet, 200 feet, and 300 feet toward the approaching traffic.
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10 feet, 100 feet, and 200 feet toward the approaching traffic.
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