What is the function of the topping-up pump (bellows hand pump) supplied in a life raft?
Direct Answer
Option A: To manually top up pressure in main buoyancy chambers or canopy arches if pressure drops due to cold air contraction
The LSA Code requires survival craft equipment packs to include a topping-up pump with adapter. Ambient temperature drops cause internal gas contraction within inflatable buoyancy chambers and arches; manual pumping restores structural rigidity and operational integrity without over-pressurizing relief valves.
All Options
Detailed Explanation & Context
The LSA Code requires survival craft equipment packs to include a topping-up pump with adapter. Ambient temperature drops cause internal gas contraction within inflatable buoyancy chambers and arches; manual pumping restores structural rigidity and operational integrity without over-pressurizing relief valves.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Personal Survival Techniques (PST).
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