Q.1
Before a trip, you can make sure air flows to all trailers by:
Q.2
What is a bobtail tractor?
Q.3
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.4
When braking with ABS, you should:
Q.5
A driver should test the tractor protection valve by:
Q.6
If an air supply control is in its "emergency" position:
Q.7
After completing a pre-trip inspection, you should ensure that the:
Q.8
If you press the tractor air supply control and your trailer's spring brakes do not release, you should:
Q.9
When driving a vehicle equipped with an Anti-Lock Braking System (ABS), brakes should be applied:
Q.10
Keeping cargo centered on a rig can:
Q.11
The ____ trailer is the most likely to turn over if a driver takes a turn too quickly.
Q.12
Pushing in the trailer air supply control will:
Q.13
How much space should be between the upper and lower fifth wheel?
Q.14
When backing up while coupling a trailer, the tractor should be positioned:
Q.15
If a trailer begins to jackknife, the driver:
Q.16
In an empty combination vehicle, the stiff suspension springs and strong brakes will have:
Q.17
When you are pulling a trailer, the air supply control lever should be in its ____ position.
Q.18
What is a bobtail tractor?
Q.19
All trailers made after ____ must be equipped with Anti-Lock Braking Systems (ABS).
Q.20
When testing ____, you should apply your vehicle's brakes with the hand control while moving the vehicle forward slowly.
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