Computer · Environmental Engineering
A mechanical device or assembly installed in a drainage system to prevent the reverse flow of contaminated water into the potable water supply system is a:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Back water valve
- 2Back-siphonage pipe
- 3Backflow preventer✓
- 4Back-vent pipe
Correct answer
Backflow preventer
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