Waste Water Engineering
Drop manholes are the manholes

Without entry ladders
With depths more than 3.5 m
Having drains at different levels
Without manhole covers

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
In the activated sludge process

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

ANSWER DOWNLOAD EXAMIANS APP