Red Seal Plumbing Practice Exam 2026 - Free Red Seal Plumbing Practice Questions and Study Guide

Question: 1 / 400

What is the maximum trap arm length for a floor drain?

10' (3m)

12' (3.5m)

The maximum trap arm length for a floor drain is typically 12 feet, as stated by the International Plumbing Code (IPC). This length is recommended for proper ventilation and drainage in the plumbing system. Options A, C, and D all exceed this recommended length and may cause issues with proper drainage and ventilation.

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15' (4.5m)

20' (6m)

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