A duct is permitted to penetrate three floors or less without a fire damper at each floor as long as the duct does not exceed _____ inches nominal diameter.

Prepare for the Sheet Metal Journeyman Test with comprehensive study tools including flashcards, multiple choice questions, and detailed explanations. Master the test content and ensure your success!

Multiple Choice

A duct is permitted to penetrate three floors or less without a fire damper at each floor as long as the duct does not exceed _____ inches nominal diameter.

Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy