Plumber Red Seal · Question
A plumber is installing a new residential plumbing system. The National Plumbing Code of Canada (NPC) dictates the minimum number of fixture units for various drainage components. What is the minimum fixture unit value for a water closet (gravity tank type) connected to a building drain?
According to the National Plumbing Code of Canada, a gravity tank type water closet has a minimum fixture unit value of 4. This value is crucial for correctly s
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Question: A plumber is installing a new residential plumbing system. The National Plumbing Code of Canada (NPC) dictates the minimum number of fixture units for various drainage components. What is the minimum fixture unit value for a water closet (gravity tank type) connected to a building drain?
Answer options:
- 2 fixture units
- 3 fixture units ✅ 4 fixture units
- 6 fixture units
Correct answer: 4 fixture units
Explanation: According to the National Plumbing Code of Canada, a gravity tank type water closet has a minimum fixture unit value of 4. This value is crucial for correctly sizing drainage pipes.
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