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Questions and Answers
What is the function of a backflow preventer?
What is the function of a backflow preventer?
- To increase the pressure in the pipe
- To prevent the flow of liquid from returning to the source of supply (correct)
- To allow the flow of liquid back to the source of supply
- To reduce the flow rate of the liquid
What is back-siphonage?
What is back-siphonage?
- The flowing of clean water into a plumbing fixture
- The flowing back of used, contaminated or polluted water from a plumbing fixture or vessel into a water supply pipe (correct)
- The flowing of water from a higher to a lower elevation
- The flowing of gas into a drainage system
What is the function of a backwater valve?
What is the function of a backwater valve?
- To allow reverse flow in a drainage system
- To increase the pressure in the pipe
- To reduce the flow rate of the liquid
- To prevent reverse flow in a drainage system (correct)
What is a vent pipe that connects directly with an individual trap?
What is a vent pipe that connects directly with an individual trap?
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What is a ball cock?
What is a ball cock?
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What is a ball joint?
What is a ball joint?
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