There are two disadvantages to CO2 when used as a total flooding firefighting agent. One of them is extinguishing concentration will not support human life and
Direct Answer
Option A: The lack of cooling effect on heated materials
CO2 is an asphyxiant that displaces oxygen, making it deadly in enclosed spaces. A major disadvantage is its lack of cooling capacity, meaning that once the CO2 gas dissipates, the hot fuel may reignite if the surfaces have not cooled down.
All Options
Detailed Explanation & Context
CO2 is an asphyxiant that displaces oxygen, making it deadly in enclosed spaces. A major disadvantage is its lack of cooling capacity, meaning that once the CO2 gas dissipates, the hot fuel may reignite if the surfaces have not cooled down.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Course for STCW Modular Courses (Refresher).
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