Waste Water Engineering The pressure exerted by The sewage when running full from inside, is called internal pressure All listed here Pressure sewers are designed to be safe in tension The internal pressure if any, causes tensile stress in the pipe material The sewage when running full from inside, is called internal pressure All listed here Pressure sewers are designed to be safe in tension The internal pressure if any, causes tensile stress in the pipe material ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of HNO₃ None of these H₂SO₄ HCl HNO₃ None of these H₂SO₄ HCl 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’ = 0.84 D 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 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas which may cause explosion in sewers, is Carbondioxide Methane Ammonia Carbon monoxide Carbondioxide Methane Ammonia Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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 Unexpected increase in the population Under estimates of maximum and average flows All of these Unexpected large scale infiltration of stream water Unexpected increase in the population Under estimates of maximum and average flows All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 5 days-biochemical oxygen demand (BOD5) is taken at a temperature of 20°C 25°C 15°C 0°C 20°C 25°C 15°C 0°C ANSWER DOWNLOAD EXAMIANS APP
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