Q.1
Which of the following types of vehicles is most prone to the “crack-the-whip" effect?
Q.2
Why do large vehicles use air brakes?
Q.3
When driving while pulling trailers, you should:
Q.4
To prevent a rollover, cargo should be:
Q.5
Do not use the parking brake when parking if:
Q.6
Rollovers are most likely to happen when:
Q.7
When a combination vehicle goes around a corner:
Q.8
All tractors and trailers must be equipped with ABS.
Q.9
When starting a vehicle with dual air brakes, pressure of ____ should be built up in the system before it is driven.
Q.10
Trailers built before 1975 are:
Q.11
Emergency brakes are:
Q.12
In a vehicle with dual parking control valves, once air pressure is lost and the spring brakes come on:
Q.13
When glad hands are coupled, the seals should be pressed together at a ____ angle.
Q.14
A shut-off valve:
Q.15
When driving a combination rig, following distance should be:
Q.16
Before a vehicle with dual air brakes is driven, pressure of at least ____ should be built up in both braking systems.
Q.17
The most common type of foundation brake used is the:
Q.18
Brakes out of adjustment will:
Q.19
In a vehicle with dual parking control valves, a separate air tank can be used:
Q.20
When connecting a converter dolly to a second or third trailer, the trailer height should be:
Q.21
Air tanks usually hold enough compressed air:
Q.22
During an applied leakage test, the maximum leakage rate for a double combination vehicle is:
Q.23
The air entering air storage tanks may contain:
Q.24
What does an air compressor do in an air brake system?
Q.25
How should you test the low pressure warning signal?
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