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HOTmike HOTmike
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6 years ago
Water-filled sections of pipe within a building's wastewater system that keep sewer gases and odors from entering the building are called:

a.   risers.

b.   gas-flow preventers.

c.   sanitary pipes.

d.   traps.
Textbook 
Hospitality Facilities Management and Design

Hospitality Facilities Management and Design


Edition: 4th
Authors:
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EleglinEleglin
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6 years ago
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