AIR BRAKES CDL PRACTICE TEST - MONTANA

21. If you must make an emergency stop, you should:
brake in a way that will keep your vehicle in a straight line.
apply the brakes as hard as you can to lock them.
use the hand brake before the brake pedal.
None of the above.
22. To check that spring brakes come on automatically, the first thing to do is to:
continue to step on and off the brake pedal until the air pressure falls to the manufacturer’s specification.
release the parking brake, move the vehicle forward slowly, and apply the brakes firmly.
turn off the engine, release the parking brake and time the air pressure drop.
All of the above.
23. If your ABS fails:
you will still have normal brake functions.
the first step is to get the vehicle off the road and stop.
you will have no brake function, and could lose control.
your tires might grab unexpectedly and you could lose control.
24. Antifreeze:
helps the engine only when the temperature is below freezing.
helps the engine under hot conditions as well as cold conditions.
doesn't help the engine in any way.
helps the engine only under hot conditions.
25. The air compressor is connected to:
the suspension system.
the transmission.
the radiator.
the engine.
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