BIGF Exit Exam • Set 1 Question 15 of 30

Which is the major constituent of natural gas?

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Direct Answer

Option C: methane

Methane is the lightest and primary constituent of natural gas, typically making up between 85% and 95%+ of Liquefied Natural Gas.

All Options

oxygen

ethane

methane (Correct Answer)

octane

Detailed Explanation & Context

Methane is the lightest and primary constituent of natural gas, typically making up between 85% and 95%+ of Liquefied Natural Gas.

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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