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 120 cm 100 cm 140 cm 160 cm 120 cm 100 cm 140 cm 160 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following tests is used for testing sewer pipes? Ball test Mirror test Water test All of these Ball test Mirror test Water test All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Aerobic activity is maximum In freshly produced sewage None of these At sewer pipes In sewer treatment plants In freshly produced sewage None of these At sewer pipes In sewer treatment plants ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering During preliminary treatment of a sewage Floating materials are removed by screening Girt and sand are removed by girt chambers Oil and grease are removed from skimming tanks All listed here Floating materials are removed by screening Girt and sand are removed by girt chambers Oil and grease are removed from skimming tanks All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Hazen’s formula VS = 418 (GS – Gw)d [(3T + 70)/100] is used for the settlement velocity of the particles of diameter Less than 0.1 mm Greater than 0.1 mm Less than 0.05 mm Less than 0.01 mm Less than 0.1 mm Greater than 0.1 mm Less than 0.05 mm Less than 0.01 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The rate of accumulation of sludge per person per year, is 15 litres 10 litres 20 litres 25 litres 15 litres 10 litres 20 litres 25 litres ANSWER DOWNLOAD EXAMIANS APP
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