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← Doubles and Triples
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Question 1 of 3
This is a free 3-question preview.
You should check the height of the trailer before connecting a converter dolly to a second or third trailer. The trailer height is right when:
A
The trailer will be raised slightly when the converter dolly is backed under it.
B
The center of the kingpin lines up with the locking jaws
C
The kingpin rests on the fifth wheel
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