Q.1
If the low air pressure warning signal comes on in a vehicle with air brakes, the driver should:
Q.2
What does an air compressor do in an air brake system?
Q.3
Alcohol evaporators are:
Q.4
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.5
You should test the low pressure warning signal by:
Q.6
Air brakes use ____ to function.
Q.7
A low air pressure warning signal should activate:
Q.8
A safety valve is set to open at ____ pounds per square inch (psi).
Q.9
The leakage rate for a triple combination vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
Q.10
What helps prevent wheel lockup when braking?
Q.11
In a dual air brake system, air pressure should build from 85 to 100 psi within ____ seconds.
Q.12
When leaving your vehicle unattended:
Q.13
Air tank drains should:
Q.14
When operating a vehicle with a dual air brake system, the driver should:
Q.15
If an air compressor is belt-driven, the belt should be routinely checked to ensure that it is:
Q.16
Air storage tanks:
Q.17
Brake linings should be:
Q.18
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.19
Using the brakes creates heat. If too much heat is produced:
Q.20
An alcohol evaporator in an air brake system:
Q.21
The leakage rate for a single vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
Q.22
When you are about to start down a hill, you should switch into a ____ gear.
Q.23
Air pressure should build up in a single air system within:
Q.24
Having ABS on only one axle:
Q.25
Before driving a vehicle with air brakes, you should ensure that the ____ come on automatically when air pressure falls below 45 psi.
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