High School

Which statement about the numerical rating of a Class K extinguisher is correct?

A. The higher the number, the larger the fire it can extinguish.
B. The lower the number, the larger the fire it can extinguish.
C. The number represents the temperature at which it is effective.
D. The number indicates the pressure of the extinguishing agent.

Answer :

Final answer:

The correct statement about the numerical rating of a Class K extinguisher is that the higher the number, the larger the fire it can extinguish. This rating indicates the firefighting capability of the extinguisher.

Explanation:

The correct statement about the numerical rating of a Class K fire extinguisher is (a) The higher the number, the larger the fire it can extinguish. The class K extinguisher is typically used for fires involving cooking oils and greases, such as animal and vegetable fats. As a general rule, the higher the numerical rating on any fire extinguisher, the greater its firefighting capability. This is not to be confused with the pressure of the extinguishing agent or the temperature at which the extinguisher is effective, which are unrelated to the numerical rating.

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