National Commission for the Certification of Crane Operators (NCCCO) Mobile Crane Practice Exam

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Study for the NCCCO Mobile Crane Test. Prepare with flashcards and multiple-choice questions, complete with hints and explanations for each. Ace your certification exam!

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Under what condition may a swivel be used with rotation resistant wire rope?

Always
Never
If the rope manufacturer approves
If the operator decides it's OK

The correct answer is: If the rope manufacturer approves

A swivel may be used with rotation resistant wire rope if the rope manufacturer approves its use. Rotation resistant wire ropes are designed to minimize the tendency to rotate under load. When using a swivel, it is crucial to ensure that it does not compromise the intended functionality of the wire rope. The manufacturer’s approval serves as a validation that the specific swivel can be safely used without negatively impacting the rope's performance or integrity. This is especially important because using a swivel without proper guidance can lead to issues such as rope fatigue or failure, which can jeopardize safety on the job site. Thus, obtaining manufacturer approval is the right approach when considering the use of a swivel with rotation resistant wire rope.