Explanation/Reference:
Explanation:
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. These extinguishing agents are non-conductive.
Class A fire extinguishers use water or foam. Water or foam used on an electrical fire would conduct the electricity and make the fire worse. Therefore, for an electrical fire, a Class C fire extinguisher is preferable to a Class A fire extinguisher.
Incorrect Answers:
A: For a paper fire, a Class A fire extinguisher that uses water or foam is preferred. Therefore, this answer is incorrect.
B: All products that are burning in a fire are 'flammable'. The specific type of product needs to be determined to determine which fire extinguisher to use. Therefore, this answer is incorrect.
D: For a fire in an enclosed area, a Class A fire extinguisher that uses water or foam is preferred (unless the elements of the fire require a different fire extinguisher). This is because other fire extinguishers can use gases that can be harmful to life. Therefore, this answer is incorrect.
References:
Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, p. 472