Q.1
When coupling a trailer, you should:
Q.2
If a trailer begins to skid, it is best for the driver to:
Q.3
What is a tractor protection valve?
Q.4
When braking while pulling a trailer equipped with anti-lock brakes, you should:
Q.5
When backing up while coupling a trailer, the tractor should be positioned:
Q.6
When driving with trailers, you should:
Q.7
All trailers made after ____ must be equipped with Anti-Lock Braking Systems (ABS).
Q.8
If a trailer begins to jackknife, the driver:
Q.9
When braking with ABS, you should:
Q.10
If you must cross traffic while driving a combination vehicle, you should:
Q.11
When glad hands are coupled, the seals should be pressed together at a ____ angle.
Q.12
When coupling, after you've connected the air lines to the trailer, you should:
Q.13
The trailer hand valve should not be used while you are driving because:
Q.14
When you are pulling a trailer, the air supply control lever should be in its ____ position.
Q.15
If your vehicle gets stuck on railroad tracks, you should:
Q.16
What does an Anti-Lock Braking System (ABS) do?
Q.17
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.18
When coupling a trailer:
Q.19
To help prevent a rollover, cargo should be:
Q.20
Combination vehicles are usually:
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