Environmental Engineering If the sewage contains grease and fatty oils, these are removed in Detritus tanks Sedimentation tanks Skimming tanks Grit chambers Detritus tanks Sedimentation tanks Skimming tanks Grit chambers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For a country like India, where rainfall is mainly confined to one season, the suitable sewerage system will be Partially combined system Partially separate system Combined system Separate system Partially combined system Partially separate system Combined system Separate system ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The commonly used material for water supply pipes, which has the properties of being strong, not easily corroded and long life but is heavy and brittle, is Reinforced cement concrete Steel Cast iron Copper Reinforced cement concrete Steel Cast iron Copper ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is 4 ppm 10 ppm 1 ppm 40 ppm 4 ppm 10 ppm 1 ppm 40 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The self cleansing velocity for all sewers in India is usually 1.5 m/sec to 2.0 m/sec 3.0 m/sec to 3.5 m/sec Less than 1.0 m/sec 1.0 m/sec to 1.2 m/sec 1.5 m/sec to 2.0 m/sec 3.0 m/sec to 3.5 m/sec Less than 1.0 m/sec 1.0 m/sec to 1.2 m/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effective size of sand particles used in slow sand filters is 0.25 to 0.35 mm 1.00 to 1.80 mm 0.60 to 1.00 mm 0.35 to 0.60 mm 0.25 to 0.35 mm 1.00 to 1.80 mm 0.60 to 1.00 mm 0.35 to 0.60 mm ANSWER DOWNLOAD EXAMIANS APP
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