Waste Water Engineering If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is None of these 1 in 100 1 in 60 1 in 120 None of these 1 in 100 1 in 60 1 in 120 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called Depressed sewer Inverted syphon all of these Sag pipe Depressed sewer Inverted syphon all of these Sag pipe ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage may become stale in Two to three hours Three to four hours One hour Six hours Two to three hours Three to four hours One hour Six hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In septic tanks, Free board of 0.3 m may be provided The clear space between the baffle top and covering slab is about 7.5 cm The baffles or tees are extended up to top level of scum All listed here Free board of 0.3 m may be provided The clear space between the baffle top and covering slab is about 7.5 cm The baffles or tees are extended up to top level of scum All listed here 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 50 mg/l 250 mg/l 150 mg/l 100 mg/l 50 mg/l 250 mg/l 150 mg/l 100 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient, Is trebled Is only provided Is doubled Is not enough Is trebled Is only provided Is doubled Is not enough ANSWER DOWNLOAD EXAMIANS APP
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