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

General Knowledgemedium

AFifth wheel and locking jaws

BOnly the radio antenna

COnly the license plate light

Detailed Explanation

The fifth wheel and locking jaws must be secure so the tractor and trailer stay coupled.

Correct Answer: 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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