Waste Water Engineering Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for Unexpected large scale infiltration of stream water All of these Under estimates of maximum and average flows Unexpected increase in the population Unexpected large scale infiltration of stream water All of these Under estimates of maximum and average flows Unexpected increase in the population ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Lead caulked joints are used for laying Earthenware pipes G.I. pipes Stone ware pipes I. pipes Earthenware pipes G.I. pipes Stone ware pipes I. pipes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the diameter of a sewer is 150 mm, the gradient required for generating self cleansing velocity, is None of these 1 in 120 1 in 100 1 in 60 None of these 1 in 120 1 in 100 1 in 60 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering ‘Cowl’ is provided at Upper end of the manhole First step in manhole Lower end of ventilating column Upper end of ventilating column Upper end of the manhole First step in manhole Lower end of ventilating column Upper end of ventilating column ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is D/3 D/2 D/4 D/1 D/3 D/2 D/4 D/1 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20°C, B.O.D. of the sewage is 100 mg/l 150 mg/l 250 mg/l 50 mg/l 100 mg/l 150 mg/l 250 mg/l 50 mg/l ANSWER DOWNLOAD EXAMIANS APP
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