GASCO Exit Exam • Set 14 Question 6 of 30
Which of the following options is an exception in a typical LNG boil off gas reliquefication plant?
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Direct Answer
Option B: forced vaporization
Boil-Off Gas (BOG) is the continuous natural vaporization of cryogenic liquefied gas (like LNG at -161.5°C) caused by ambient heat ingress through the cargo tank insulation.
All Options
A
cargo cycl
B
forced vaporization
(Correct Answer)
C
nitrogen or cooling vaporization
D
auxiliary cycl
Detailed Explanation & Context
Boil-Off Gas (BOG) is the continuous natural vaporization of cryogenic liquefied gas (like LNG at -161.5°C) caused by ambient heat ingress through the cargo tank 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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