CompTIA A+ Core 2 (220-1202)Operational ProceduresMedium
A data center technician discovers a small electrical fire starting in a server rack's power distribution unit. Which type of fire extinguisher should be used to safely extinguish this fire?
- AClass K
- BClass B
- CClass C
- DClass A
Show answer & explanationAnswer & explanation
Correct answer: C. Class C
Class C fire extinguishers are designed specifically for electrical fires, using non-conductive agents that avoid the risk of electrocution present with water-based extinguishers.
Why the other options are wrong
- A. Class K is for kitchen fires involving cooking oils/fats.
- B. Class B is for flammable liquids, not electrical fires.
- D. Class A extinguishers use water/foam, unsafe for energized electrical equipment.
Class C Fire Extinguisher
A fire extinguisher rated for electrical fires that uses non-conductive extinguishing agents to safely suppress fires in energized equipment.
- Never use water on electrical fires
- Class C agents are typically CO2 or dry chemical
- Should always disconnect power if safely possible before extinguishing
Memory trick: C is for Circuits — use Class C on electrical fires.