BIGF Exit Exam • Set 6 Question 2 of 30

Substance of cargo vapour in air which is not toxic

✓

Direct Answer

Option C: Methane

Pure methane vapor in air is a simple asphyxiant and is non-toxic, whereas other chemical gases and high concentrations of aromatic hydrocarbons present distinct physiological toxicity.

All Options

Propane

Ethylene

Methane (Correct Answer)

All the above

Detailed Explanation & Context

Pure methane vapor in air is a simple asphyxiant and is non-toxic, whereas other chemical gases and high concentrations of aromatic hydrocarbons present distinct physiological toxicity.

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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