____________ is used to measure the flow velocity across a cross-section with a known area.

The outlet pipe in the septic tank is kept about _____ lower than the inlet pipe.

Indian type water closet is used in squatting position while European type water closet cannot be conveniently used in s…

The single stack system if effective only in the case when the traps are filled with water seal of depth not less than _…

The opening at the top of the intercepting trap is called as _______

Which of the following components of a storage tank is used to clean the tank periodically?

In a house drainage system, the pipe which is used to preserve the water seal of traps is called ______

Which of the following materials is not used to make storage tanks?