GASCO Exit Exam • Set 4 Question 25 of 30

Up to what temperature is methane vapour heavier than air

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Direct Answer

Option A: -110C

Cold methane vapor at temperatures below -110°C is denser/heavier than ambient air (15°C) and will stay low or form a dense white cloud until warmed above -110°C.

All Options

-110C (Correct Answer)

-161 .5C

-125C

15C

Detailed Explanation & Context

Cold methane vapor at temperatures below -110°C is denser/heavier than ambient air (15°C) and will stay low or form a dense white cloud until warmed above -110°C.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Liquefied Gas Tanker Cargo Operations (GASCO).

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