Waste Water Engineering With self cleansing velocity in sewers Both silting and scouring occur at bottom Scouring occurs at bottom Neither silting nor scouring occurs at bottom Silting occurs at bottom Both silting and scouring occur at bottom Scouring occurs at bottom Neither silting nor scouring occurs at bottom Silting occurs at bottom ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Cement concrete sewers are only suitable if non-scouring velocity is between 3.0 to 4.0 m/sec 3.5 to 4.5 m/sec 4.5 to 5.5 m/sec 2.5 to 3.0 m/sec 3.0 to 4.0 m/sec 3.5 to 4.5 m/sec 4.5 to 5.5 m/sec 2.5 to 3.0 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Adding sulphuric acid Boiling Adding potassium permanganate Phenol-di-sulphuric acid Adding sulphuric acid Boiling Adding potassium permanganate Phenol-di-sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is 0.88 m 1.76 m 0.68 m 1.36 m 0.88 m 1.76 m 0.68 m 1.36 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In areas where rainy season is limited to a few months, the type of sewerage system recommended is Separate system Combined system None of these Partially separate system Separate system Combined system None of these Partially separate system ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A circular sewer section is preferred to because It is cheaper in construction It provides maximum area for a given perimeter It provides maximum hydraulic mean depth All listed here It is cheaper in construction It provides maximum area for a given perimeter It provides maximum hydraulic mean depth All listed here ANSWER DOWNLOAD EXAMIANS APP
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