An extinguisher labeled 10A:100B:C indicates that ________.

A) It can extinguish a Class A fire of 10 square feet in size, a Class B fire involving flammable liquids and gases, and a Class C fire involving electrical equipment.

B) It can extinguish a Class A fire of 10 gallons in size, a Class B fire involving flammable liquids and gases, and a Class C fire involving electrical equipment.

C) It can extinguish a Class A fire of 10 feet in height, a Class B fire involving flammable liquids and gases, and a Class C fire involving electrical equipment.

D) It can extinguish a Class A fire of 10 square meters in size, a Class B fire involving flammable liquids and gases, and a Class C fire involving electrical equipment.

An extinguisher labeled 10A:100B:C can extinguish Class A fires of 10 square feet, Class B fires involving flammable liquids and gases, and Class C fires involving electrical equipment. Therefore the correct answer is A).

Explanation:

The label provides a quick reference for the types of fires the extinguisher can be used on, as well as a relative measure of its effectiveness against each type. Class A refers to fires involving ordinary combustible materials such as wood, paper, and cloth.

Class B fires involve flammable liquids like gasoline, oil, or grease; and Class C fires involve energized electrical equipment. An extinguisher labeled 10A:100B:C indicates that it can extinguish a Class A fire of 10 square feet in size, a Class B fire involving flammable liquids and gases, and a Class C fire involving electrical equipment.