PSCRB Exit Exam • Set 6 Question 5 of 30

What is the function of the hydrostatic release unit (HRU) test pin / indicator?

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Direct Answer

Option A: Indicates HRU expiry date and verifies internal spring diaphragm seal integrity

Hydrostatic release units (HRUs) feature test pins and inspection windows to verify internal spring-diaphragm integrity and confirm that the unit remains within its certified operational lifespan as mandated by SOLAS Chapter III.

All Options

Indicates HRU expiry date and verifies internal spring diaphragm seal integrity (Correct Answer)

Starts lifeboat engine

Measures water salinity

Fires signal rocket

Detailed Explanation & Context

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Proficiency in Survival Craft and Rescue Boats (PSCRB).

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More Questions in PSCRB Set 6

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Q1 What type of engine is mandatory for fast rescue boats requiring speeds of 20+ knots? Q2 What precaution must be taken when towing an inflatable life raft behind a motor rescue boat? Q3 What item inside a survival craft equipment kit is used to signal distress by flashing reflected sunlight? Q4 What requirement applies to the painter line of a lifeboat when stowed on davits? Q5 What is the function of the hydrostatic release unit (HRU) test pin / indicator? Q6 What safety equipment must be worn by all crew members during lifeboat launching drills? Q7 What is the primary action to stabilize a person rescued from cold water who is suffering from mild hypothermia? Q8 What is the function of the drain valve (auto-drain valve) fitted in the bottom of a lifeboat hull? Q9 What capsize recovery system is fitted to rigid rescue boats? Q10 What is the function of the emergency tiller supplied with a lifeboat?