OBC Plumbing All Buildings Practice Questions - Ontario Building Code Exam Plumbing - All Buildings Exam

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What is the minimum downward slope required for a horizontal sanitary drainage pipe with a nominal size of NPS 4 or larger under the 2024 OBC?

1 in 25 (4%) 1 in 200 (0.5%) 1 in 100 (1%) 1 in 50 (2%)

Correct Answer:

1 in 100 (1%)

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