Question 1465Deck Safety70% to pass
Winch drums for lifeboat falls shall have a diameter at the base of the groove equal to at least _______________.
AI Explanation
The correct answer is D) 16 times the diameter of the wire rope.
The regulation that specifies this requirement is found in 46 CFR 160.015-5(d), which states that the winch drum diameter for lifeboat falls shall be at least 16 times the diameter of the wire rope used. This is to ensure that the wire rope can wrap smoothly and evenly on the drum without excessive bending or wear.
The other options are incorrect because they do not meet the minimum regulatory requirement of 16 times the wire rope diameter. A diameter of 6, 8, or 12 times the wire rope diameter would not provide sufficient support and protection for the wire rope, leading to potential issues with the lifeboat launching system.
Related Questions
#1463 Which statement is TRUE concerning a motor lifeboat? #1464 When lifeboat winches with grooved drums are fitted on a vessel the lead sheaves to the drums shall be located to provide fleet angles of not more than _______________.#1466 The quantity of fuel required to be carried in a motor lifeboat is _______________.#1467 A motor lifeboat shall carry sufficient fuel to operate continuously for a period of _______________.#1468 Line throwing apparatus aboard ship must contain _______________.