Waste Water Engineering In sewers the velocity of flow should not be Less than 10 m/sec More than 20 m/sec Less than the self-cleansing velocity More than the self-cleansing velocity Less than 10 m/sec More than 20 m/sec Less than the self-cleansing velocity More than the self-cleansing velocity ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The value of Chezy’s constant C = 157.6/(1.81 + K/ ) is used in Manning’s formula Chezy’s formula Bazin’s formula Kutter’s formula Manning’s formula Chezy’s formula Bazin’s formula Kutter’s formula ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For design of sewers, percentage of sewage discharge is assumed 65 to 70% 75 to 80% 0.85 70 to 75% 65 to 70% 75 to 80% 0.85 70 to 75% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewer which transports the sewage to the point of treatment, is called Main sewer House sewer Branch sewer Out-fall sewer Main sewer House sewer Branch sewer Out-fall sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The maximum diameter of sewers adopted in the designs is 1.0 m 3.0 m 2.0 m 4.0 m 1.0 m 3.0 m 2.0 m 4.0 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The spacing of bars of perforations of fine screens used for the treatment of sewage, is 2 to 3 mm 3 to 5 mm 8 to 10 mm 5 to 8 mm 2 to 3 mm 3 to 5 mm 8 to 10 mm 5 to 8 mm ANSWER DOWNLOAD EXAMIANS APP
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