Q.1
Before backing your tractor under the trailer, make sure your trailer brakes are:
Q.2
An air supply control lever should be in its "normal" position when you are:
Q.3
A tractor protection valve is:
Q.4
Which of the following will not help prevent a rig from rolling over?
Q.5
Place the trailer air supply control in its "emergency" position to test:
Q.6
Fully-loaded rigs:
Q.7
When coupling a trailer:
Q.8
When backing up while coupling a trailer, the tractor should be positioned:
Q.9
In a sudden turn, the ____ trailer is the most likely to turn over.
Q.10
When driving a tractor-trailer equipped with ABS, you should:
Q.11
A loss of air pressure in the emergency line will cause:
Q.12
The trailer hand valve:
Q.13
The trailer hand valve should be used:
Q.14
During a trip, landing gear should be:
Q.15
Push in the trailer air supply control to:
Q.16
After completing a pre-trip inspection, you should ensure that the:
Q.17
The best way to recognize that your trailer has started to skid is by:
Q.18
What is another name for the service line?
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