Q.1
What helps prevent wheel lockup when braking?
Q.2
When the spring brakes are on, you should never:
Q.3
A wig wag is:
Q.4
Brake linings should be:
Q.5
Before driving a vehicle with air brakes, you should ensure that the ____ come on automatically when air pressure falls below 45 psi.
Q.6
During an inspection, slack adjusters on S-cam brakes should not move more than:
Q.7
When you are about to start down a hill, you should switch into a ____ gear.
Q.8
When experiencing cold weather, be sure to check your vehicle's alcohol evaporator:
Q.9
ABS brakes:
Q.10
The air compressor is connected to the:
Q.11
The rods in S-cam brakes move the slack adjusters when air pressure is added to the brake chambers. This air pressure is added to the chambers when the driver:
Q.12
During an applied leakage test, the maximum leakage rate for a double combination vehicle is ____ in a minute.
Q.13
What tells you how much pressure is in your vehicle's air tanks?
Q.14
A slack adjuster should move no more than ____ from where it is attached to the push rod.
Q.15
If air pressure drops to a level between ____, a visual low pressure warning signal should have already activated.
Q.16
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.17
Friction in an S-cam brake is caused when the brake shoes and linings:
Q.18
When parking, you should not use the parking brake if:
Q.19
The ____ between an air compressor and reservoir tank prevents air from escaping if the air compressor has a leak.
Q.20
An air compressor governor controls:
Q.21
When leaving your vehicle unattended:
Q.22
When traveling down a steep downgrade:
Q.23
Using the brakes creates heat. If too much heat is produced:
Q.24
A ____ allows a driver to gradually apply spring brakes.
Q.25
Having ABS on only one axle:
0 h : 0 m : 1 s