AZ CDL AIR BRAKES PRACTICE TEST
21.
During a trip you should check:
|
temperature gauges.
|
|
|
pressure gauges.
|
|
|
All of the above.
|
22.
Which of the following is NOT part of the air brake system?
|
Parking brake system
|
|
|
Anti-lock brake system
|
|
|
Emergency brake system
|
23.
Air tanks usually hold enough compressed air to allow the brakes to be used _________ even if the compressor stops working.
|
for one day
|
|
|
for one stop
|
|
|
several times
|
24.
As part of your vehicle inspection, you are checking that air flows to all trailers. After using the trailer handbrake to provide air to the service line, you go to the rear of the rig. When you open the emergency line shut-off valve at the rear of the last trailer, you should hear:
|
the service line valve close.
|
|
|
air escaping from the open valve.
|
|
|
a mechanical vibration.
|
25.
Some vehicles have a separate air tank which can be used to:
|
turn on the 4-way emergency flashers.
|
|
|
release the spring brakes.
|
|
|
hold the vehicle or combination of vehicles stationary.
|
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More