In illustration D012SA below, what will be released when pulling on line number 5?
• Identify what part of the releasing gear line 5 is attached to (look closely at label 4 and the red mechanism). • Recall what is actually held by the large hook or link at label 9 in a gravity davit system. • Distinguish between gripes, frapping lines, and tricing pendants—when are each of these used in the launching sequence?
• Follow the load path: starting from the hook at 9, trace what it supports and how that connects up through the mechanism to line 5. • Ask yourself: when you pull a small control line on a releasing hook assembly, are you normally freeing a securing line (like gripes/frapping) or are you operating the main hook that carries the boat? • Which of the answer choices are lines used to temporarily control the boat alongside, and which choice refers to the object actually suspended from the falls?
• Verify that line 5 operates the red lever mechanism (4) and not any of the wire ropes labeled 1, 7, or 8. • Confirm what is attached to fitting 9—is it a securing line, a pendant, or the connection to the boat itself? • Make sure you can state, in your own words, the primary function of gripes, frapping lines, and tricing pendants before picking an option.
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