NC CDL AIR BRAKES PRACTICE TEST
11.
To check the slack adjusters:
|
check the air hoses connected to the brake chambers to make sure they aren't cut or worn.
|
|
|
park downhill and see if the vehicle rolls.
|
|
|
Park on level ground and chock the wheels, release the parking brakes and pull hard on each slack adjuster. The slack adjuster shouldn't move more than one inch.
|
|
|
None of the above.
|
12.
If your vehicle has an alcohol evaporator, every day during cold weather, you should:
|
ensure that compressed air usually has some water and some compressor oil in it.
|
|
|
fill it up with oil to prevent the pipes from freezing.
|
|
|
fill it up with oil to prevent alcohol from freezing.
|
|
|
check the alcohol container and fill up as necessary.
|
13.
Slack adjusters:
|
regulate the distance that the air brake has to travel to apply friction to the wheel.
|
|
|
are the linkage between the operating rod in the brake chamber and drum brakes or disk brakes in an air brake system.
|
|
|
are used to adjust the brakes on an air-brake system.
|
|
|
All of the above.
|
14.
Antilock brakes:
|
let you drive faster.
|
|
|
decrease your stopping distance.
|
|
|
help you stop faster.
|
|
|
None of the above.
|
15.
Emergency brakes are:
|
required on all vehicles.
|
|
|
not required on commercial vehicles with air brakes.
|
|
|
not required on doubles.
|
|
|
not required on buses.
|
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More