GASCO Exit Exam • Set 11 Question 24 of 30

At what temperature will methane change from vapour to liquid at atmospheric pressure?

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Direct Answer

Option B: -161.5°C

The correct answer is -161.5°C. This complies with established gas tanker operational standards, thermodynamics, and the IGC Code safety requirements.

All Options

-141.5°C

-161.5°C (Correct Answer)

-151.5°C

-131.5°C

Detailed Explanation & Context

The correct answer is -161.5°C. This complies with established gas tanker operational standards, thermodynamics, and the IGC Code safety requirements.

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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More Questions in GASCO Set 11

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Q1 When using the breathing apparatus, the person is warned of low air volume remaining in his air bottle by the meter needle in the red zone and Q2 Hazardous conditions exist which may result in spontaneous combustion when Q3 The best portable fire extinguisher to be used to fight tank top fire in the engine-room is the: Q4 Fire fighters can control the LNG fire by using______________. Q5 How should steam pipes be protected in machinery spaces? Q6 What is the parameter which influences the separation of nitrogen in a membrane type generator, which uses hollow fiber membranes to produce nitrogen from air? Q7 The steam heaters onboard LNG tankers work based on "heat transfer" principles. It is important to note the gas volume/liquid volume ratio of LNG at -161.5°C', What is the correct ratio? Q8 Why level gauges fitted onboard LNG carriers are of the "closed" type? Q9 You are in charge of man - entry into an enclosed space. Which of the following will you check using portable gas detectors? Q10 Onboard an LNG carrier in port, the wheelhouse is unmanned. What will be the watch station of the duty cargo officer?