Q.1
Which of the following will not help prevent a rig from rolling over?
Q.2
When coupling, after you've connected the air lines to the trailer, you should:
Q.3
The ____ trailer is the most likely to turn over if a driver takes a turn too quickly.
Q.4
Combination vehicles need extra space on the road because they:
Q.5
When connecting a converter dolly to a second trailer, the trailer height should be ____ the center of the fifth wheel.
Q.6
Trailers with low underneath clearance can present challenges when driving over:
Q.7
Older trailers are not equipped with spring brakes. This means that if the air supply for a vehicle's air braking system leaks away:
Q.8
What is a bobtail tractor?
Q.9
If an air supply control is in its "emergency" position:
Q.10
Keeping cargo low can:
Q.11
To find out if a vehicle that was built before 1998 has an Anti-Lock Braking System (ABS), you can:
Q.12
If your vehicle gets stuck on railroad tracks, you should:
Q.13
Keeping cargo centered on a rig can:
Q.14
Shut-off valves:
Q.15
The "crack-the-whip" effect can:
Q.16
When glad hands are coupled, the seals should be pressed together at a ____ angle.
Q.17
Place the trailer air supply control in its "emergency" position to test:
Q.18
If the emergency air line loses pressure:
Q.19
What does an Anti-Lock Braking System (ABS) do?
Q.20
If a trailer begins to skid, it is best for the driver to:
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