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SSC CPOSSC CPO Hard Mock Set 2Hard GK

SSC CPO Mock Test Set 2, Q79: Identify the correct answer for gas used in many electrical fire extinguishers.

A. Carbon dioxide
B. Hydrogen
C. Oxygen
D. Nitrogen dioxide
Correct Answer: A. Carbon dioxide
Explanation: CO2 does not support combustion. Category: SSC CPO. Set: 2.
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