Waste Water Engineering In sewers the highest non-scouring velocity is achieved in Cast iron sewers Cement concrete sewers Glazed bricks sewers Stone ware sewers Cast iron sewers Cement concrete sewers Glazed bricks sewers Stone ware sewers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to Carbonaceous demand First stage demand Initial demand All of these Carbonaceous demand First stage demand Initial demand All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Large diameter sewers subjected to external pressure alone, are reinforced Both A and B With elliptical cage Near the outer surface of the pipe Near the inner surface of the pipe Both A and B With elliptical cage Near the outer surface of the pipe Near the inner surface of the pipe ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Stone ware pipes are Highly impervious Hydraulically efficient because of their smooth interior surface Especially suited to pressure pipes Highly resistant to sulphide corrosion Highly impervious Hydraulically efficient because of their smooth interior surface Especially suited to pressure pipes Highly resistant to sulphide corrosion ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The ratio of maximum sewage flow to average sewage flow for mains up to 1 m in diameter, is 4 2 1.5 3 4 2 1.5 3 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In trickling filter, B.O.D. is reduced to 40 to 60% 30 to 40% 80 to 90% 60 to 80% 40 to 60% 30 to 40% 80 to 90% 60 to 80% ANSWER DOWNLOAD EXAMIANS APP
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