Waste Water Engineering For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of 100 cm 160 cm 140 cm 120 cm 100 cm 160 cm 140 cm 120 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for Under estimates of maximum and average flows Unexpected large scale infiltration of stream water All of these Unexpected increase in the population Under estimates of maximum and average flows Unexpected large scale infiltration of stream water All of these Unexpected increase in the population ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains Methane Oxygen Hydrogen sulphide Carbon dioxide Methane Oxygen Hydrogen sulphide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Aerobic activity is maximum In freshly produced sewage At sewer pipes None of these In sewer treatment plants In freshly produced sewage At sewer pipes None of these In sewer treatment plants ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of H₂SO₄ HCl None of these HNO₃ H₂SO₄ HCl None of these HNO₃ ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The spacing of man holes along a straight portion of a sewer is 300 m, the diameter of the sewer may be > 1.5 m 1.5 m 0.9 cm 1.2 m > 1.5 m 1.5 m 0.9 cm 1.2 m ANSWER DOWNLOAD EXAMIANS APP
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