What is the device used to prevent sewer gases from entering the buildings? Options: A . &nbspFilters B . &nbspTraps C . &nbspVentilators D . &nbspVacuum pumps

What is the device used to prevent sewer gases from entering the buildings?

Question

What is the device used to prevent sewer gases from entering the buildings?

Options:

A . Filters

B . Traps

C . Ventilators

D . Vacuum pumps

Answer: Option B
Answer: (b).Traps

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