Waste Water Engineering If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains Methane Oxygen Carbon dioxide Hydrogen sulphide Methane Oxygen Carbon dioxide Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering pH value of sludge during alkaline regression stage, is Less than 7 Less than 6 More than 6 More than 7 Less than 7 Less than 6 More than 6 More than 7 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The pH value of fresh sewage is usually Equal to 7 Equal to zero More than 7 Less than 7 Equal to 7 Equal to zero More than 7 Less than 7 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering R.M.O. expenses include Maintenance expenses All of these Running expenses Operation expenses Maintenance expenses All of these Running expenses Operation expenses ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The underground sewers are more subjected to Tensile force Bending force Compressive force Shearing force Tensile force Bending force Compressive force Shearing force ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Adding potassium permanganate Boiling Phenol-di-sulphuric acid Adding sulphuric acid Adding potassium permanganate Boiling Phenol-di-sulphuric acid Adding sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
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