Q.1
When coupling a trailer:
Q.2
To help prevent a rollover, cargo should be:
Q.3
When backing a trailer, you must turn the steering wheel:
Q.4
If you cannot reverse your trailer in a straight path, you should:
Q.5
When testing ____, you should apply your vehicle's brakes with the hand control while moving the vehicle forward slowly.
Q.6
In a double or triple combination, the ____ trailer should be directly behind the cab.
Q.7
To prevent a rollover, cargo should be:
Q.8
When coupling, you should:
Q.9
How much space should be between the upper and lower fifth wheel?
Q.10
All trailers made after ____ must be equipped with Anti-Lock Braking Systems (ABS).
Q.11
The tractor protection valve:
Q.12
Fully-loaded rigs:
Q.13
What does an Anti-Lock Braking System (ABS) do?
Q.14
The trailer hand valve should not be used while you are driving because:
Q.15
Place the trailer air supply control in its "emergency" position to test:
Q.16
Combination vehicles are usually:
Q.17
When driving while pulling trailers, you should:
Q.18
When backing up while coupling a trailer, the tractor should be positioned:
Q.19
A tractor protection valve:
Q.20
Maintain a following distance of at least ____ for every 10 feet of your vehicle if you are traveling at a speed under 40 mph.
0 h : 0 m : 1 s