Q.1
____ are the cause of more than half of all accident-related truck driver deaths.
Q.2
Emergency air lines are often coded with the color:
Q.3
When you are pulling a trailer, the air supply control lever should be in its ____ position.
Q.4
Trailers manufactured after ____ must be equipped with Anti-Lock Braking Systems (ABS).
Q.5
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.6
Which type of vehicle is most prone to the “crack-the-whip” effect?
Q.7
The trailer hand valve should be used:
Q.8
A driver should test the tractor protection valve by:
Q.9
A loss of air pressure in the emergency line will cause:
Q.10
If a trailer's spring brakes do not release when you push the tractor air supply control, you should:
Q.11
When entering or crossing traffic while driving a combination vehicle, it is especially important that you:
Q.12
A trailer will be most likely to swing around when:
Q.13
Using the trailer hand valve while driving:
Q.14
The trailer hand valve:
Q.15
Combination vehicles need extra space on the road because they:
Q.16
In a vehicle equipped with an automatic tractor protection valve, the valve will pop out when:
Q.17
If unsure if a trailer is equipped with ABS, you can:
Q.18
What happens when the wheels of a trailer lock up?
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