Sliding type water tight door below the water line should be able close manually in how many seconds ?
Direct Answer
Option D: 60-90 seconds
SOLAS Chapter II-1 mandates that power-operated sliding watertight doors below the bulkhead deck must be capable of being closed manually from the accessible side of the bulkhead in not more than 60 seconds and not less than 40 seconds under power.
All Options
Detailed Explanation & Context
SOLAS Chapter II-1 mandates that power-operated sliding watertight doors below the bulkhead deck must be capable of being closed manually from the accessible side of the bulkhead in not more than 60 seconds and not less than 40 seconds under power.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Advanced Fire Fighting (RAFF).
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