Systems that can capture water that is not heavily contaminated a
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nd redirect it for certain uses without treatment if allowed by local
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codes are called - correct answer ✔ ✔ graywater
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The system inside a building is a circuit of piping designed to rem
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ove the wastes from plumbing fixtures and drain safely, reliably, a
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nd efficiently is called the - correct answer ✔ ✔ DWV system
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The seal in a trap protects people from airborne pathogens (germs
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), foul odors, and potentially explosive sewer gases, is called a -
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correct answer ✔ ✔ water seal
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To avoid double trapping, never attach another trap to a -
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correct answer ✔ ✔ water closet
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Siphonage occurs when there - correct answer ✔ ✔,. ,. ,. ,. ,. ,. ,.
is negative pressure inside the DWV piping
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, To maintain the water seals in fixtures, balance the pressure withi
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n the drainage system traps using - correct answer ✔ ✔ vents
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To maintain equalized pressure throughout the drainage system, v
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ents use - correct answer ✔ ✔ air
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The green building certification system, which rates buildings, sy
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stems, materials, and construction and design methods for their ef
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fect on the environment, is called - correct answer ✔ ✔
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LEED (Leadership in Energy and Environmental Design)
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The most commonly used materials for DWV fittings are plastic a
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nd - correct answer ✔ ✔ cast iron
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To allow for the smooth flow of material in the system, sanitary dr
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ainage fittings are made with a - correct answer ✔ ✔
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sweeping design ,.
To join DWV system without using reducers, the branch inlets of
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sanitary fittings must be - correct answer ✔ ✔ reducing
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