Before driving a coupled tractor-trailer, what connection must be secure?

General Knowledgemedium

AThe fifth wheel and locking jaws

BOnly the AM/FM antenna

COnly the license plate light

Detailed Explanation

A secure fifth wheel connection keeps the tractor and trailer coupled during operation.

Correct Answer: The fifth wheel and locking jaws

Reviewed by Baha Mustafa, CDL holder, against official CDL manuals and FMCSA rules.

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Before driving a coupled tractor-trailer, what connection must be secure?

Detailed Explanation

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