What risk occurs if liquid gas is trapped between two closed line valves?
Direct Answer
Option B: Hydraulic expansion pressure rise bursting the pipe line
Liquefied gases possess high coefficients of volumetric thermal expansion. When trapped between closed valves, ambient heat absorption causes rapid liquid expansion, generating immense hydrostatic pressure that easily exceeds pipeline yield strengths, leading to catastrophic structural rupture in accordance with IGC Code containment safeguarding principles.
All Options
Detailed Explanation & Context
Liquefied gases possess high coefficients of volumetric thermal expansion. When trapped between closed valves, ambient heat absorption causes rapid liquid expansion, generating immense hydrostatic pressure that easily exceeds pipeline yield strengths, leading to catastrophic structural rupture in accordance with IGC Code containment safeguarding principles.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Liquefied Gas Tanker Cargo Operations (LGTCO/LGTF).
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