Answer :
Final answer:
Class K fire extinguishers, typically used in kitchens, do not have numerical ratings like certain other fire extinguisher classes. Instead, effectiveness is determined by the volume of fire-suppressing agents they contain.
Explanation:
The correct statement about the numerical rating of a Class K fire extinguisher is d) Class K extinguishers do not have numerical ratings. Class K extinguishers are designed for use on kitchen fires, particularly those involving fats, greases, and oils. Unlike some other classes of fire extinguishers, Class K extinguishers are not given numerical ratings. This is because the extinguishing capacity is not based on water but on the volume of fire-suppressing agents they contain. This is considered to be effective in suppressing specific kinds of fires that would be "Class K extinguisher".
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