What is the type of gas detection system fitted for spaces with air?
Direct Answer
Option D: Catalytic combustion type
Catalytic combustion type gas detectors (pellistors) are widely used for detecting flammable hydrocarbon vapours in air, typically expressed as a percentage of LFL. They require oxygen to function and are standard for monitoring hazardous atmospheres in pump rooms or cargo areas, as per ISGOTT.
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Detailed Explanation & Context
Catalytic combustion type gas detectors (pellistors) are widely used for detecting flammable hydrocarbon vapours in air, typically expressed as a percentage of LFL. They require oxygen to function and are standard for monitoring hazardous atmospheres in pump rooms or cargo areas, as per ISGOTT.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).
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