What is the guiding rule for limiting pressure surge on loading or discharging
Direct Answer
Option D: All the abov
Limiting pressure surges requires a controlled, sequential shutdown of the cargo system. Closing the ESD valve nearest the pump first, followed by others, prevents hydraulic shock (water hammer) within the piping. This procedure is a critical safety practice outlined in SIGTTO guidelines to protect the integrity of the cargo manifold.
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Detailed Explanation & Context
Limiting pressure surges requires a controlled, sequential shutdown of the cargo system. Closing the ESD valve nearest the pump first, followed by others, prevents hydraulic shock (water hammer) within the piping. This procedure is a critical safety practice outlined in SIGTTO guidelines to protect the integrity of the cargo manifold.
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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