AIGF Exit Exam • Set 4 Question 2 of 30
What is a Primary Barrier in liquified gas tanks?
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Direct Answer
Option B: Inner surface designed to contain the cargo when the cargo containment system includes a secondary barrier
The primary barrier is the inner liquid-tight containment boundary designed to directly hold cryogenic cargo or fuel under normal operating conditions.
All Options
A
seperating barrier between liquid and gas
B
Inner surface designed to contain the cargo when the cargo containment system includes a secondary barrier
(Correct Answer)
C
nothing special barrier
D
chemical combination of cargo liquid with oxygen from other source
Detailed Explanation & Context
The primary barrier is the inner liquid-tight containment boundary designed to directly hold cryogenic cargo or fuel under normal operating conditions.
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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