What instrument measures low concentration flammable gas by catalytic oxidation?
Direct Answer
Option A: Explosimeter (Combustible Gas Indicator)
Explosimeters utilize a catalytic filament to oxidize flammable gases, measuring the resulting heat increase to determine gas concentration relative to the Lower Explosive Limit (LEL). SIGTTO guidelines emphasize their critical role in monitoring hazardous spaces to ensure atmospheres remain below explosive thresholds during cargo operations.
All Options
Detailed Explanation & Context
Explosimeters utilize a catalytic filament to oxidize flammable gases, measuring the resulting heat increase to determine gas concentration relative to the Lower Explosive Limit (LEL). SIGTTO guidelines emphasize their critical role in monitoring hazardous spaces to ensure atmospheres remain below explosive thresholds during cargo operations.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Liquefied Gas Tanker Cargo Operations (GASCO).
Practice Full GASCO Set 1
Test yourself with 30 interactive questions, live timer, and instant score.