Question

in the united states, there are —— classes of fire.
select one:
a. three
b. four
c. five
d. six

Explanation:

In the United States, the National Fire Protection Association (NFPA) classifies fires into five classes: Class A (ordinary combustibles), Class B (flammable liquids and gases), Class C (energized electrical equipment), Class D (combustible metals), and Class K (cooking oils and fats).

Answer:

c. Five