A gun tackle can be used
Direct Answer
Option B: Both to advantage and disadvantage
A gun tackle, consisting of one single movable block and one single fixed block, can be rigged to provide a mechanical advantage (to advantage) or without advantage depending on which block is attached to the load. Therefore, it can be used in both ways.
All Options
Detailed Explanation & Context
A gun tackle, consisting of one single movable block and one single fixed block, can be rigged to provide a mechanical advantage (to advantage) or without advantage depending on which block is attached to the load. Therefore, it can be used in both ways.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • General Ship Knowledge (GSK).
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