Q.1
When the spring brakes are on, you should never:
Q.2
A slack adjuster should move no more than ____ from where it is attached to the push rod.
Q.3
When traveling down a steep downgrade:
Q.4
When parked on a flat surface, you should:
Q.5
While driving, ____ generally holds spring brakes in place.
Q.6
What kind of force do emergency brakes use?
Q.7
During an inspection, slack adjusters on S-cam brakes should not move more than:
Q.8
In a dual air brake system, air pressure should build from 85 to 100 psi within ____ seconds.
Q.9
If the low air pressure warning signal comes on in a vehicle with air brakes, the driver should:
Q.10
The ____ between an air compressor and reservoir tank prevents air from escaping if the air compressor has a leak.
Q.11
What is often found in compressed air?
Q.12
____ make up the emergency brake system.
Q.13
When an S-cam turns inside a brake drum, the S-cam:
Q.14
Using the brakes creates heat. If too much heat is produced:
Q.15
If the spring brakes are on, you should:
Q.16
In a vehicle with dual parking control valves, a separate air tank can be used:
Q.17
An air compressor governor controls:
Q.18
When leaving a vehicle unattended, a driver should:
Q.19
Brakes can get out of adjustment quickly, especially:
Q.20
Braking mechanisms are located inside:
Q.21
An alcohol evaporator in an air brake system:
Q.22
During a static leakage test, what is the maximum leakage rate that is safe for a double combination vehicle?
Q.23
Air storage tanks:
Q.24
Which of the following is not part of a vehicle’s air brake system?
Q.25
The parking brake in a newer vehicle is applied by:
0 h : 0 m : 1 s