What safety device protects LNG fuel tanks from overpressure during BOG accumulation?
Direct Answer
Option B: Safety relief valves vented to dedicated vent mast
Safety relief valves are mandatory to protect LNG fuel tanks from overpressure caused by Boil-Off Gas (BOG) accumulation. These valves are designed to discharge excess gas safely to a dedicated vent mast, located away from ignition sources, ensuring the structural integrity of the tank during normal and emergency operations.
All Options
Detailed Explanation & Context
Safety relief valves are mandatory to protect LNG fuel tanks from overpressure caused by Boil-Off Gas (BOG) accumulation. These valves are designed to discharge excess gas safely to a dedicated vent mast, located away from ignition sources, ensuring the structural integrity of the tank during normal and emergency operations.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Ships subject to the IGF Code (AIGF).
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