Waste Water Engineering
The non-clog pump which permits solid matter to pass out with the liquid sewage, is

None of these
Pneumatic ejector
Reciprocating pump
Centrifugal pump

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
The clarigesters are

Circular Imhoff double storey tanks without bottom hoppers
Circular Imhoff double tanks with bottom hoppers
Circular septic tanks
Rectangular septic tanks

ANSWER DOWNLOAD EXAMIANS APP