TX CDL Combination 4 Flashcards

1
Q

You are uncoupling a trailer. After you shut off the trailer air supply and lock the trailer brakes, you should

A

back up gently to ease pressure on the fifth wheel locking jaws.

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2
Q

A tractor with a(n) _______ trailer requires the shortest amount of stopping distance.

A

fully loaded

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3
Q

Semi-trailers made before 1975 that are equipped with air brakes:

A

often do not have spring brakes.

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4
Q

On a trailer, where is the yellow anti-lock brake (ABS) malfunction lamp located?

A

On the front left or rear left corner

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5
Q

What are the other names for the service air line?

A

Control line or signal line

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