Water-tight sliding steel doors positioned below the vessel's waterline must be capable of closing completely within how many seconds when the ship is upright?
Direct Answer
Option C: 45 seconds or less
SOLAS regulations require that watertight doors below the waterline be capable of closing in a controlled manner within a specific timeframe (usually 20 to 40 seconds) to ensure that the vessel's subdivision remains effective in the event of flooding.
All Options
Detailed Explanation & Context
SOLAS regulations require that watertight doors below the waterline be capable of closing in a controlled manner within a specific timeframe (usually 20 to 40 seconds) to ensure that the vessel's subdivision remains effective in the event of flooding.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Personal Safety & Social Responsibilities (PSSR).
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