GASCO Exit Exam • Set 1 Question 2 of 30

At atmospheric pressure, what is the approximate boiling point of methane?

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Direct Answer

Option D: 162°C

Methane exhibits a boiling point of approximately -162°C at atmospheric pressure. This extreme cryogenic temperature necessitates the use of specialized materials, such as stainless steel or nickel-alloy steels, and advanced insulation systems as mandated by the IGC Code to prevent brittle fracture of the ship's structural steel.

All Options

42°C

104°C

0°C

162°C (Correct Answer)

Detailed Explanation & Context

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 1

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Q1 What is the primary component of Liquefied Natural Gas (LNG)? Q2 At atmospheric pressure, what is the approximate boiling point of methane? Q3 Which code governs the construction and equipment of ships carrying liquefied gases in bulk? Q4 What is the function of Boil-Off Gas (BOG) on an LNG carrier? Q5 What gas is used to inert cargo tanks on gas carriers before introducing gas cargo? Q6 What is the Maximum Allowable Relief Valve Setting (MARVS) for a Type C independent tank on an LPG carrier? Q7 What risk is associated with rapid liquid cargo release onto steel deck structures? Q8 What type of pumps are most commonly used submerged inside LNG cargo tanks? Q9 What instrument measures low concentration flammable gas by catalytic oxidation? Q10 What safety feature automatically trips cargo valves and pumps during an emergency ESD activation?