GASCO Exit Exam • Set 1 Question 27 of 30

What gas detection method is used in continuous gas monitoring systems in interbarrier spaces?

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Direct Answer

Option A: Infrared gas absorption analyzers

Infrared gas absorption analyzers are the industry standard for continuous monitoring in interbarrier and hold spaces. They provide high sensitivity and rapid response times, essential for detecting leaks early, as required by the IGC Code for the safe operation of gas containment systems.

All Options

Infrared gas absorption analyzers (Correct Answer)

Litmus paper strips

Visual observation glass

Smoke detectors

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?