OCTCO/OCTF Exit Exam • Set 1 Question 2 of 30
What is the maximum oxygen content allowed in inert gas supplied to cargo tanks?
✓
Direct Answer
Option B: 5% by volume (max 8% inside tanks)
Inert Gas Systems supply IG with O2 < 5%; tank atmosphere must be < 8% O2.
All Options
A
21%
B
5% by volume (max 8% inside tanks)
(Correct Answer)
C
0%
D
15%
Detailed Explanation & Context
Inert Gas Systems supply IG with O2 < 5%; tank atmosphere must be < 8% O2.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Oil and Chemical Tanker Cargo Operations (OCTCO/OCTF).
Advertisement
Practice Full OCTCO/OCTF Set 1
Test yourself with 30 interactive questions, live timer, and instant score.