OBC Plumbing House Practice Questions - Ontario Building Code Exam Plumbing - House Exam

Under what condition is Type M copper tubing permitted for use in residential water systems under the OBC?

Only for underground water service lines Only for above-ground water distribution systems inside a building For both underground service and above-ground distribution It is not permitted for potable water systems under any condition

Correct Answer:

Only for above-ground water distribution systems inside a building

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