GSK Exit Exam • Set 3 Question 3 of 30
A single sheave block is used to
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Direct Answer
Option D: Act as a lead block
A single sheave block, when used in a derrick or lifting arrangement, primarily functions as a lead block. It redirects the line of pull, allowing the rope to run smoothly and efficiently, often in conjunction with other blocks.
All Options
A
Prevent the wire from being damaged
B
Eliminate friction
C
Increase the power gained
D
Act as a lead block
(Correct Answer)
Detailed Explanation & Context
A single sheave block, when used in a derrick or lifting arrangement, primarily functions as a lead block. It redirects the line of pull, allowing the rope to run smoothly and efficiently, often in conjunction with other blocks.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • General Ship Knowledge (GSK).
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