The symbol yellow star on an extinguisher indicates suitability for which class?

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Prepare for the Ben Hirst Firefighter 1 Exam. Study with flashcards and multiple-choice questions, each with hints and explanations. Get ready for your certification!

Multiple Choice

The symbol yellow star on an extinguisher indicates suitability for which class?

Explanation:
The symbol on an extinguisher shows which fire classes it’s safe to use. A yellow star specifically marks Class D, which are fires involving combustible metals (like magnesium or sodium). These fires behave differently from ordinary fires and require specialized dry powder extinguishing agents that remove heat and isolate the metal; water or standard foams can react dangerously with burning metals. So a yellow star indicates it’s suitable for metal fires, not for ordinary combustibles, flammable liquids, or energized electrical fires.

The symbol on an extinguisher shows which fire classes it’s safe to use. A yellow star specifically marks Class D, which are fires involving combustible metals (like magnesium or sodium). These fires behave differently from ordinary fires and require specialized dry powder extinguishing agents that remove heat and isolate the metal; water or standard foams can react dangerously with burning metals. So a yellow star indicates it’s suitable for metal fires, not for ordinary combustibles, flammable liquids, or energized electrical fires.

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