39. Glad hands are used to connect the:

Combination Vehiclesmedium

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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39. Glad hands are used to connect the:

Detailed Explanation

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