Massachusetts Plumbers Journeyman Practice Exam

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Study for the Massachusetts Plumbers Journeyman Exam. Prepare with multiple choice questions, hints, and detailed explanations. Ace your licensing exam with confidence!

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How far should a metal sleeve be extended on each side of a rated fire separation wall or enclosure when piping passes through it?

10 inches
15 inches
20 inches
25 inches

The correct answer is: 20 inches

The correct answer is that a metal sleeve should extend 20 inches on each side of a rated fire separation wall or enclosure when piping passes through it. This requirement is designed for fire safety and integrity, ensuring that any potential fire hazards are effectively managed. The sleeve helps to maintain the fire-resistance rating of the wall by preventing the passage of fire and smoke, thus protecting the spaces on either side of the wall. By extending 20 inches on either side, the installation allows for adequate sealing and ensures that any required fire-stopping materials can effectively fill the gap around the piping, further enhancing the fire protection measures in place. Proper adherence to this specification is crucial for compliance with building codes and safety standards.