BIGF Exit Exam • Set 2 Question 22 of 30
Aerating means _____________ the oxygen content by 21 percent by volume.
✓
Direct Answer
Option B: increasing
Aerating tank spaces increases the oxygen content back to normal atmospheric levels (20.9% to 21.0% oxygen by volume) before personnel entry.
All Options
A
decreasing
B
increasing
(Correct Answer)
C
maintaining
D
none of the above
Detailed Explanation & Context
Aerating tank spaces increases the oxygen content back to normal atmospheric levels (20.9% to 21.0% oxygen by volume) before personnel entry.
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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