MISSOURI CDL AIR BRAKES PRACTICE TEST
21.
To perform an applied leakage test, the vehicle’s air pressure should be built up to maximum pressure. Check the air gauge to see that the air pressure should drop no more than:
|
1 psi for single vehicles and 3 psi for a combination of 2 vehicles.
|
|
|
2 psi for single vehicles and 5 psi for a combination of 2 vehicles.
|
|
|
3 psi for single vehicles and 4 psi for a combination of 2 vehicles.
|
22.
At passive railroad crossings, even if there are active railroad signals that indicate the tracks are clear, you must _________ to be sure it is safe to proceed.
|
stop, look, and listen
|
|
|
go, stop and listen
|
|
|
listen, look and stop
|
23.
When a tire fails, you must:
|
hold the steering wheel firmly.
|
|
|
stay off the brake.
|
|
|
All of the above.
|
24.
If you're feeling tired while driving you should:
|
eat something.
|
|
|
stop driving and get some rest.
|
|
|
drink coffee.
|
25.
To test the air leakage rate, with a fully-charged air system you should ____________ and time the air pressure drop.
|
put alcohol into the air system, run the engine at a fast idle
|
|
|
turn off the engine, release the parking brake
|
|
|
release the parking brake, leave the engine running
|
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More