CDL Air Brakes Practice Test - Rhode Island

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