Environmental Engineering Orthotolidine test is used for determination of Biochemical oxygen demand Residual chlorine Dissolved oxygen Dose of coagulant Biochemical oxygen demand Residual chlorine Dissolved oxygen Dose of coagulant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The length of rectangular sedimentation tank should not be more than (Where ‘B’ is the width of the tank) 2B B 8B 4B 2B B 8B 4B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effect of increasing diameter of sewer on the self cleansing velocity is To decrease it To increase it Nil Fluctuating To decrease it To increase it Nil Fluctuating ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow does not depend on Grade of sewer Length of sewer Roughness of sewer Hydraulic mean depth of sewer Grade of sewer Length of sewer Roughness of sewer Hydraulic mean depth of sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/hour 5 to 10 cm/sec 15 to 30 cm/sec 15 to 30 cm/minute 15 to 30 cm/hour 5 to 10 cm/sec 15 to 30 cm/sec 15 to 30 cm/minute ANSWER DOWNLOAD EXAMIANS APP
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
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