Q.1
Operating combination vehicles usually requires ­­­­­____ operating single vehicles.
Q.2
When you are pulling a trailer, the air supply control lever should be in its ____ position.
Q.3
Bobtail tractors are ____ to stop than tractors attached to full semitrailers.
Q.4
In a double or triple combination, the ____ trailer should be directly behind the cab.
Q.5
When driving a vehicle equipped with an Anti-Lock Braking System (ABS), brakes should be applied:
Q.6
What is a bobtail tractor?
Q.7
The trailer hand valve should be used:
Q.8
If you must cross traffic while driving a combination vehicle, you should:
Q.9
When braking with ABS, you should:
Q.10
If an air supply control is in its "emergency" position:
Q.11
Keeping cargo centered on a rig can:
Q.12
Look into the back of the fifth wheel:
Q.13
When testing ____, you should apply your vehicle's brakes with the hand control while moving the vehicle forward slowly.
Q.14
If a trailer begins to jackknife, the driver:
Q.15
Pushing in the trailer air supply control will:
Q.16
The best way to recognize that your trailer has started to skid is by:
Q.17
A trolley valve:
Q.18
If the emergency air line loses pressure:
Q.19
The trailer hand valve should not be used while you are driving because:
Q.20
How much space should be between the upper and lower fifth wheel?
0 h : 0 m : 1 s