Which device placed in HVAC ductwork that penetrates rated walls or floors helps restrict the spread of heat and/or smoke?

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Prepare for the Wisconsin Fire Inspector I Test. Study effectively with flashcards and detailed multiple-choice questions. Each question is complemented with hints and explanations to ensure comprehensive learning. Maximize your confidence and readiness for the exam!

Multiple Choice

Which device placed in HVAC ductwork that penetrates rated walls or floors helps restrict the spread of heat and/or smoke?

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