What risk occurs if water vapor is present inside an LPG cargo system before loading cargo?
Direct Answer
Option B: Ice and hydrate formation blocking valves, filters, and pump suctions
Water vapor in LPG systems reacts with cargo to form hydrates, which are solid crystalline structures. These block critical components like pump suctions, filters, and valves. SIGTTO guidelines mandate rigorous moisture removal via inerting and drying to ensure system integrity and prevent operational failure during cargo handling.
All Options
Detailed Explanation & Context
Water vapor in LPG systems reacts with cargo to form hydrates, which are solid crystalline structures. These block critical components like pump suctions, filters, and valves. SIGTTO guidelines mandate rigorous moisture removal via inerting and drying to ensure system integrity and prevent operational failure during cargo handling.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Liquefied Gas Tanker Cargo Operations (GASCO).
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