Art and Culture · Building Services and Plumbing
In modern plumbing, which component enables multi-point WC connections to the soil stack and prevents cross-flow?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1P-trap
- 2Anti-siphon vent
- 3Bottle trap
- 4Collar boss✓
Correct answer
Collar boss
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