MA CDL AIR BRAKES PRACTICE TEST
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.
How should you apply the brakes when going down a steep downgrade?
|
Apply the brakes as hard as you can without locking the wheels.
|
|
|
Apply the brakes whenever you reach your safe speed, until your speed has been reduced to 5 mph below your safe speed.
|
|
|
You should not brake, and only use engine braking to prevent brake failure.
|
|
|
Apply the brakes when you reach the bottom of the downgrade.
|
23.
The most common foundation brakes found on vehicles with air brakes are the:
|
wedge brakes.
|
|
|
parking brakes.
|
|
|
disc brakes.
|
|
|
S-cam brakes.
|
24.
If the ABS is not working:
|
the vehicle will have no brakes.
|
|
|
you still have normal brake functions.
|
|
|
the vehicle will have weak brakes.
|
|
|
None of the above.
|
25.
In vehicles with air brakes, the air compressor governor:
|
controls when the air compressor will pump air into the air storage tanks.
|
|
|
controls when the air storage tanks will pump air into the air compressor.
|
|
|
controls how much air the air compressor will pump into the air storage tanks.
|
|
|
None of the above.
|
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More