AIR BRAKES PRACTICE TEST - WASHINGTON
21.
The air compressor stops pumping air into the air storage tanks when air tank pressure rises to around:
|
450 psi.
|
|
|
100 psi.
|
|
|
125 psi.
|
22.
Controlled braking:
|
can be used to keep your vehicle in a straight line and allow you to turn if necessary.
|
|
|
involves locking the wheels and then releasing the brakes.
|
|
|
must be used when you need to turn sharply while braking.
|
23.
Dual tires:
|
should not come in contact with each other.
|
|
|
should come in contact with each other whenever possible.
|
|
|
should always come in contact with each other.
|
24.
Emergency brakes are:
|
not required on buses.
|
|
|
required on all vehicles.
|
|
|
not required on doubles.
|
25.
Which of the following is not a braking system on a truck?
|
Service brake
|
|
|
Parking brake
|
|
|
Steering brake
|
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More