Q
39. Glad hands are used to connect the:
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AElectric lines from the tractor to trailer.
BKingpin from the trailer to the locking jaws of the fifth wheel.
CService and emergency air lines from the truck to the trailer.
Detailed Explanation
The correct answer is "Service and emergency air lines from the truck to the trailer.". This is based on federal CDL regulations and safety standards.
Correct Answer: Service and emergency air lines from the truck to the trailer.
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3. Which part of the kingpin should the locking jaws close around?
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To prevent a rollover, a driver should:
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The service air line is attached to the:
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Test the tractor protection valve by:
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19. When backing under a tractor under a trailer you should expect:
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