Waste Water Engineering The use of coarse screens for the disposal of sewage, may be dispensed with by Shredder Both A and B Comminutor Neither A nor B Shredder Both A and B Comminutor Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of HNO₃ H₂SO₄ None of these HCl HNO₃ H₂SO₄ None of these HCl ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For design of sewers, percentage of sewage discharge is assumed 70 to 75% 65 to 70% 0.85 75 to 80% 70 to 75% 65 to 70% 0.85 75 to 80% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A safety lamp when inserted in the upper portion of a manhole causes flames. It indicates the presence of Carbondioxide gas Petrol vapours Hydrogen sulphide gas Methane gas Carbondioxide gas Petrol vapours Hydrogen sulphide gas Methane gas ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains Methane Hydrogen sulphide Oxygen Carbon dioxide Methane Hydrogen sulphide Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Chlorination of water is done for the removal of Hardness Suspended solids Sediments Bacterias Hardness Suspended solids Sediments Bacterias ANSWER DOWNLOAD EXAMIANS APP
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