GASCO Exit Exam • Set 12 Question 22 of 30
Onboard a membrane type LNG carrier, why does the primary membrane have a tendency to collapse during discharge of cargo from damaged cargo tank?
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Direct Answer
Option C: Due to large different liquid level
In Gaztransport & Technigaz NO 96 membrane containment systems, Invar membranes and perlite insulation boxes maintain cargo containment and thermal insulation.
All Options
A
Due to different material use for cargo tank and primary membrane
B
Due to temperature variations
C
Due to large different liquid level
(Correct Answer)
D
Due to small different liquid level
Detailed Explanation & Context
In Gaztransport & Technigaz NO 96 membrane containment systems, Invar membranes and perlite insulation boxes maintain cargo containment and thermal insulation.
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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