Waste Water Engineering In trickling filter, B.O.D. is reduced to 60 to 80% 30 to 40% 80 to 90% 40 to 60% 60 to 80% 30 to 40% 80 to 90% 40 to 60% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Ventilating shafts are provided to a sewer line at every 150 m 100 m 200 m 300 m 150 m 100 m 200 m 300 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The ratio of design discharge to the surface area of a sedimentation tank is called Surface loading Overflow velocity Overflow rate All of these Surface loading Overflow velocity Overflow rate All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following tests is used for testing sewer pipes? Mirror test All of these Ball test Water test Mirror test All of these Ball test Water test ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In septic tanks, decomposition of organic bacteria, is done by Aerobic bacteria Anaerobic bacteria None of these Both types of bacterias Aerobic bacteria Anaerobic bacteria None of these Both types of bacterias ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A drop manhole is provided if A branch sewer joins the main sewer at higher level None of these A sewer drops from a height A lamp is inserted to check obstruction A branch sewer joins the main sewer at higher level None of these A sewer drops from a height A lamp is inserted to check obstruction ANSWER DOWNLOAD EXAMIANS APP
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