BIGF Exit Exam • Set 2 Question 27 of 30
___________ is the vapour produced above the surface of a boiling cargo due to evaporation.
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Direct Answer
Option D: Boil-off
Boil-off gas (BOG) is the continuous vapor generated above the liquid surface inside cryogenic fuel tanks due to unavoidable ambient heat ingress.
All Options
A
BLEVE
B
Boiling Point
C
Absolute Temperature
D
Boil-off
(Correct Answer)
Detailed Explanation & Context
Boil-off gas (BOG) is the continuous vapor generated above the liquid surface inside cryogenic fuel tanks due to unavoidable ambient heat ingress.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Basic Training for Ships subject to the IGF Code (BIGF).
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