Q
19. When backing under a tractor under a trailer you should expect:
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ATrailer will be lifted slightly when the tractor backs under it.
BEnd of the kingpin is even with the top of the fifth wheel.
CTrailer landing gear is fully extended.
Detailed Explanation
The correct answer is "Trailer will be lifted slightly when the tractor backs under it.". This is based on federal CDL regulations and safety standards.
Correct Answer: Trailer will be lifted slightly when the tractor backs under it.
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