Waste Water Engineering Which one of the following statements regarding septic tanks is wrong? The depth of tank is kept equal to its width The minimum width of septic level is 90 cm A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The outlet invert level is kept 5 to 7.5 cm below the inlet invert level The depth of tank is kept equal to its width The minimum width of septic level is 90 cm A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The outlet invert level is kept 5 to 7.5 cm below the inlet invert level ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The maximum diameter of sewers adopted in the designs is 1.0 m 2.0 m 3.0 m 4.0 m 1.0 m 2.0 m 3.0 m 4.0 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewers designed with self cleansing velocity, Neither silting nor scouring occurs at the bottom The bottom is silted The bottom is scoured Both silting and scouring occur at the bottom Neither silting nor scouring occurs at the bottom The bottom is silted The bottom is scoured Both silting and scouring occur at the bottom ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Stone ware pipes are Highly resistant to sulphide corrosion Especially suited to pressure pipes Hydraulically efficient because of their smooth interior surface Highly impervious Highly resistant to sulphide corrosion Especially suited to pressure pipes Hydraulically efficient because of their smooth interior surface Highly impervious ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Clogging of sewers, is caused due to Greasy and oily matters All of these Silting Low discharge Greasy and oily matters All of these Silting Low discharge ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If D is the diameter of a circular sewer and D’ is the top horizontal diameter of an equivalent egg shaped section, the relationship which holds good, is D’ = 0.74 D D’ = 0.64 D D’ = 0.94 D D’ = 0.84 D D’ = 0.74 D D’ = 0.64 D D’ = 0.94 D D’ = 0.84 D ANSWER DOWNLOAD EXAMIANS APP
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