Answer :
Final answer:
The statement about Class K fire extinguishers being used for combustible metals is false; Class K extinguishers are meant for cooking oils. Combustible metals like magnesium require Class D extinguishers. Using the wrong type of extinguisher can be hazardous.
Explanation:
Fire Extinguisher Classifications
When considering the use of fire extinguishers on various types of fires, it's crucial to understand that Class K fire extinguishers are specifically designed for use on cooking oils and fats, while Class D extinguishers are necessary for fires involving combustible metals such as magnesium, sodium, lithium, and potassium.
To address the statement: "Class K fire extinguishers should only be used on combustible metals like magnesium, sodium, lithium, potassium, etc."
This statement is False. Class K is intended for kitchen fires from cooking oils, not for metals. Fires involving metals like magnesium cannot be extinguished with water or carbon dioxide because they may intensify the fire instead of suppressing it. Instead, the appropriate response would be to use a Class D dry chemical fire extinguisher or sand to smother the fire.
Key Points
- Class K extinguishers are for cooking oils and fats.
- Class D extinguishers are essential for combustible metal fires.
- Using the wrong type of extinguisher, such as a Class K on metal fires, could be dangerous.
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