Q.1
During a static leakage test, what is the maximum leakage rate that is safe for a double combination vehicle?
Q.2
Vehicles equipped with Anti-Lock Braking Systems (ABS) have ____ malfunction lamps to indicate when the ABS is not working.
Q.3
Using the brakes creates heat. If too much heat is produced:
Q.4
The ____ between an air compressor and reservoir tank prevents air from escaping if the air compressor has a leak.
Q.5
Which of the following is not part of a vehicle’s air brake system?
Q.6
You must have an air brake endorsement:
Q.7
Air tank drains:
Q.8
If air pressure drops to a level between ____, a visual low pressure warning signal should have already activated.
Q.9
Air tank drains should:
Q.10
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.11
A low air pressure warning signal:
Q.12
Brake fade is a result of:
Q.13
The air compressor is connected to the:
Q.14
When experiencing cold weather, be sure to check your vehicle's alcohol evaporator:
Q.15
During an inspection, slack adjusters on S-cam brakes should not move more than:
Q.16
A dual air brake system:
Q.17
What do the two systems of a dual air brake system share?
Q.18
If the safety relief valve in the air brake system releases air:
Q.19
Emergency brakes:
Q.20
Before driving a vehicle with air brakes, you should ensure that the ____ come on automatically when air pressure falls below 45 psi.
Q.21
The parking brake in a newer vehicle is applied by:
Q.22
What kind of force do emergency brakes use?
Q.23
Some water and compressor oil is usually found in the compressed air within an air brake system. The water and compressor oil:
Q.24
What is often found in compressed air?
Q.25
If the spring brakes are on, you should:
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