Q.1
Which of the following will not help prevent a rig from rolling over?
Q.2
How much space should be between the upper and lower fifth wheel?
Q.3
Maintain a following distance of at least ____ for every 10 feet of your vehicle if you are traveling at a speed under 40 mph.
Q.4
If you use the trailer hand brake while your trailer is skidding, it will:
Q.5
In an empty combination vehicle, the stiff suspension springs and strong brakes will have:
Q.6
The trailer hand valve:
Q.7
Keeping cargo low can:
Q.8
If you cannot reverse your trailer in a straight path, you should:
Q.9
If the emergency air line loses pressure:
Q.10
A driver should test the tractor protection valve by:
Q.11
If you are backing and the trailer begins to drift off-course, the driver should:
Q.12
What does an Anti-Lock Braking System (ABS) do?
Q.13
If your vehicle gets stuck on railroad tracks, you should:
Q.14
If a parked trailer does not have spring brakes, you should keep the trailer from moving by:
Q.15
If color-coded, which color is used to identify emergency, or supply, lines?
Q.16
Place the trailer air supply control in its "emergency" position to test:
Q.17
If a trailer begins to skid, it is best for the driver to:
Q.18
Watching the road ahead:
Q.19
When the wheels of a trailer lock up:
Q.20
The ____ trailer is the most likely to turn over if a driver takes a turn too quickly.
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