When a purchase is rigged to disadvantage the pull is from the
Direct Answer
Option B: Standing block
When a purchase is rigged to disadvantage, the hauling part originates from the standing block. This configuration provides no mechanical advantage; in fact, the effort required to lift the load is greater than the load itself.
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Detailed Explanation & Context
When a purchase is rigged to disadvantage, the hauling part originates from the standing block. This configuration provides no mechanical advantage; in fact, the effort required to lift the load is greater than the load itself.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • General Ship Knowledge (GSK).
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