What safety precaution must be taken before opening an engine crankcase after a hot spot alarm?
Direct Answer
Option D: Wait at least 30 minutes to allow hot spots to cool down before opening doors
Class safety rules dictate waiting at least 30 minutes before opening crankcase doors following a bearing hot spot or suspected crankcase alarm. This cooling period prevents catastrophic crankcase explosions by allowing heated oil mist to condense below its flash point.
All Options
Detailed Explanation & Context
Class safety rules dictate waiting at least 30 minutes before opening crankcase doors following a bearing hot spot or suspected crankcase alarm. This cooling period prevents catastrophic crankcase explosions by allowing heated oil mist to condense below its flash point.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Marine Engineering Knowledge (MEK).
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