Q.1
In a vehicle equipped with an automatic tractor protection valve, the valve will pop out when:
Q.2
The best way to recognize that your trailer has begun to skid is by:
Q.3
Combination vehicles need extra space on the road because they:
Q.4
An air supply control in its "emergency" position will:
Q.5
When braking with ABS, you should:
Q.6
When you are pulling a trailer, the air supply control lever should be in its ____ position.
Q.7
Before a drive, ensure that air flows to all trailers by:
Q.8
Before backing your tractor under the trailer, make sure your trailer brakes are:
Q.9
Which of the following types of vehicles is most prone to the “crack-the-whip" effect?
Q.10
The "crack-the-whip" effect can:
Q.11
How much space should be between the upper and lower fifth wheel?
Q.12
Keeping cargo low can:
Q.13
Operating combination vehicles usually requires ­­­­­____ operating single vehicles.
Q.14
The trailer hand valve should be used:
Q.15
Using the trailer hand valve while driving:
Q.16
Pushing in the trailer air supply control will:
Q.17
During a trip, which shut-off valves should be open?
Q.18
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.19
When backing up while coupling a trailer, the tractor should be positioned:
Q.20
What is a tractor protection valve?
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