Q.1
Which of the following is not part of a vehicle’s air brake system?
Q.2
In a vehicle with dual air brakes, a leak in one system ____ the second system.
Q.3
Lights that indicate that anti-lock brakes are not working are:
Q.4
What should happen before the air pressure in an air brake system tank falls below 55 psi?
Q.5
The parking brake in a newer vehicle is applied by:
Q.6
Failing to drain air tanks could result in:
Q.7
The ____ between an air compressor and reservoir tank prevents air from escaping if the air compressor has a leak.
Q.8
An application pressure gauge shows:
Q.9
Air tank drains:
Q.10
Brakes can get out of adjustment quickly, especially:
Q.11
Friction in an S-cam brake is caused when the brake shoes and linings:
Q.12
A wig wag is:
Q.13
When leaving your vehicle unattended:
Q.14
When experiencing cold weather, be sure to check your vehicle's alcohol evaporator:
Q.15
When an S-cam turns inside a brake drum, the S-cam:
Q.16
What can happen if the air pressure gets too low in an air brake system?
Q.17
During an applied leakage test, the maximum leakage rate for a triple combination vehicle is ____ in a minute.
Q.18
A ____ allows a driver to gradually apply spring brakes.
Q.19
If using spring brakes when hauling a heavy load, a complete stop will:
Q.20
When leaving a vehicle unattended, a driver should:
Q.21
Do not operate a vehicle if any brake drums have cracks that are larger than ____ of the width of the friction area.
Q.22
If an air compressor is belt-driven, the belt should be routinely checked to ensure that it is:
Q.23
What is often found in compressed air?
Q.24
How much distance will an air brake-equipped vehicle need to come to a complete stop if it is traveling at 55 mph under ideal driving conditions?
Q.25
When leaving your vehicle unattended:
0 h : 0 m : 1 s