Deck Safety (Supplementary) USCG Q#2054 (Set 5)

What is the mechanical advantage of tackle number 1 as shownin illustration D029DG below?

USCG Exam Illustration D029DG — USCG Examination Diagram: **Illustration D029DG**

Official USCG Answer & Rule Citation

Correct Answer: Option B — 1.0

Tackle number 1 consists of a single fixed block acting as a simple directional change pulley, yielding a mechanical advantage of 1.0 because it does not reduce the pull required to lift the load.

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