Light gauge copper tubes are used for general purpose work where the pressure is not more than 0.15 N/mm2.

The depth of a sludge soak pit varies from _________

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

The strength or effectiveness of a water seal is represented by its _____

In the two-pipe system for the drainage of buildings, the discharge from the waste pipe is disconnected from the drain b…

Bell-type flushing cistern is an example of _______

The size of the rainwater pipe commonly used in house drainage is _____

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