Plumber Red Seal · Question
What type of vent system serves two or more traps with a single vent pipe connected to their common drain line?
A circuit vent is a type of vent system that serves two or more traps and connects to a horizontal drainage branch or main, often running upstream from the last
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Question: What type of vent system serves two or more traps with a single vent pipe connected to their common drain line?
Answer options:
- Relief vent ✅ Circuit vent
- Stack vent
- Continuous vent
Correct answer: Circuit vent
Explanation: A circuit vent is a type of vent system that serves two or more traps and connects to a horizontal drainage branch or main, often running upstream from the last fixture connection in a group.
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