Waste Water Engineering
For providing an Indian type W.C., the R.C.C. slabs in the toilet portion

Should be kept 20 cm above the adjacent portion
Should be sunk by 20 cm
Should be sunk by 50 cm
Need not be sunk

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
In the activated sludge process

Aeration is continued till stability
Aeration is done with an admixture of previously aerated sludge
Sludge is activated by constant stirring
Water is removed by centrifugal action

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
Traps

Are used to trap the rats entering sewers
Dissolve the foul gases
Are water seals which prevent the entry of foul gases
Create symphonic action to increase the quick disposal of sewerage

ANSWER DOWNLOAD EXAMIANS APP