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SSC CPOSSC CPO Hard Mock Set 5Hard GK

SSC CPO Mock Test Set 5, Q29: Identify the correct answer for gas used in many electrical fire extinguishers.

A. Nitrogen dioxide
B. Carbon dioxide
C. Hydrogen
D. Oxygen
Correct Answer: B. Carbon dioxide
Explanation: CO2 does not support combustion. Category: SSC CPO. Set: 5.
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