Question 4561 Deck General
70% to passIn a wire rope mooring system, the fairlead sheave should be a minimum of _______________.
A
10-18 times the diameter of the wire rope
B
18-36 times the diameter of the wire rope
C
36-50 times the diameter of the wire rope
D
50-75 times the diameter of the wire rope
AI Explanation
The correct answer is B) 18-36 times the diameter of the wire rope. The reason this is the correct answer is that industry standards and regulations, such as those from the American Petroleum Institute (API), recommend that the fairlead sheave diameter should be at least 18-36 times the diameter of the wire rope being used. This guideline helps ensure the wire rope is not bent excessively around the sheave, which can cause premature wear and damage to the rope. The other options are incorrect because 10-18 times (A) is too small, while 36-50 times (C) and 50-75 times (D) are larger than the recommended range.
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