BIGF Exit Exam • Set 1 Question 14 of 30

In natural gas what is the range of methane ?

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Direct Answer

Option B: 70 to 99 %

Methane (CH4) is the predominant component of raw and commercial natural gas, typically comprising 70% to 99% of the total gas volume.

All Options

50%

70 to 99 % (Correct Answer)

100%

60 to 88%

Detailed Explanation & Context

Methane (CH4) is the predominant component of raw and commercial natural gas, typically comprising 70% to 99% of the total gas volume.

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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