Question 19 of 30
Blocks are greased to
A
Prevent Accidents
B
Allow free rotation of sheaves
C
Maintain the SWL of the block
D
Keep the check nut tight
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Answer & Explanation
The correct answer is Option B: Allow free rotation of sheaves.
Blocks are greased to ensure the free and smooth rotation of the sheaves. This reduces friction and wear on the sheave and the rope, which is vital for efficient operation and preventing damage.