LGTCO/LGTF Exit Exam • Set 2 Question 14 of 30
What is the upper explosive limit (UEL) of Methane gas in air?
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Direct Answer
Option D: Approximately 15% by volume
Per SIGTTO and IGC Code safety data, methane has a flammable range in air of approximately 5.0% (Lower Explosive Limit) to 15% (Upper Explosive Limit) by volume, establishing critical parameters for gas detection and safety management.
All Options
A
2%
B
100%
C
50%
D
Approximately 15% by volume
(Correct Answer)
Detailed Explanation & Context
Per SIGTTO and IGC Code safety data, methane has a flammable range in air of approximately 5.0% (Lower Explosive Limit) to 15% (Upper Explosive Limit) by volume, establishing critical parameters for gas detection and safety management.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Liquefied Gas Tanker Cargo Operations (LGTCO/LGTF).
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