Q.1
To prevent a rollover, cargo should be:
Q.2
When connecting a converter dolly to a second trailer, the trailer height should be ____ the center of the fifth wheel.
Q.3
What happens when the wheels of a trailer lock up?
Q.4
What is a bobtail tractor?
Q.5
When glad hands are coupled, the seals should be pressed together at an angle of:
Q.6
A combination vehicle has ____ air line(s).
Q.7
The emergency air line supplies air to the:
Q.8
If the trailer begins to skid, it is best to:
Q.9
When backing a trailer, how should you turn the steering wheel?
Q.10
In a vehicle equipped with an automatic tractor protection valve, the valve will pop out when air pressure drops to a level between:
Q.11
Place the trailer air supply control in its "emergency" position to test:
Q.12
Which type of vehicle is most prone to the “crack-the-whip” effect?
Q.13
Rollovers happen when:
Q.14
What is another name for the service line?
Q.15
Look for matching colors when coupling glad hands. Service lines are often:
Q.16
Emergency air lines are often coded with the color:
Q.17
Operating a combination vehicle usually requires ­­­­­____ operating a single vehicle.
Q.18
Large combination vehicles take the longest amount of time to stop:
Q.19
Rollovers are most likely to happen when:
Q.20
When a combination vehicle goes around a corner:
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