A ventilated pit in a minor repair garage for heavier‑than‑air fuel is considered unclassified provided there is ventilation of at least 1 ft3/min/ft2, where exhaust air is evaluated at a point within how many inches of the floor?

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Prepare for the Independent Electrical Contractors (IEC) Year 4 Exam. Access flashcards, multiple choice questions, and detailed explanations. Enhance your readiness and achieve your certification!

Multiple Choice

A ventilated pit in a minor repair garage for heavier‑than‑air fuel is considered unclassified provided there is ventilation of at least 1 ft3/min/ft2, where exhaust air is evaluated at a point within how many inches of the floor?

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