Which type of fire extinguisher is MOST appropriate for a digital information processing facility?
Correct Answer: C
Explanation/Reference:
Explanation:
The most likely type of fire in a digital information processing facility is an electrical fire. Class C fire extinguishers are used for fires involving electrical equipment.
Class C fires are electrical fires which that may occur in electrical equipment or wiring. Class C fire extinguishers use gas, CO2 or dry powders as these extinguishing agents are non-conductive.
Incorrect Answers:
A: Type A fire extinguishers use water or foam. These should not be used on an electrical fire. Therefore, this answer is incorrect.
B: Type B fires are liquid fires such as gasoline. Some Type B fire extinguishers use CO2 which could be used on an electrical fire. However, Type B fire extinguishers can also use foam which should not be used on electrical fires. Therefore, this answer is incorrect.
D: Type D fires are combustible metals such as magnesium, sodium or potassium. Type D fire extinguishers use dry powders designed for combustible metals and should not be used on electrical fires.
Therefore, this answer is incorrect.
References:
Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, p. 472