Environmental Engineering The working conditions in imhoff tanks are Anaerobic only Aerobic only Aerobic in lower compartment and anaerobic in upper compartment anaerobic in lower compartment and aerobic in upper compartment Anaerobic only Aerobic only Aerobic in lower compartment and anaerobic in upper compartment anaerobic in lower compartment and aerobic in upper compartment ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The main disadvantage of cement concrete sewers is Less strength Difficulty in construction Less life Difficulty in transportation due to heavy weight Less strength Difficulty in construction Less life Difficulty in transportation due to heavy weight ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow does not depend on Roughness of sewer Hydraulic mean depth of sewer Grade of sewer Length of sewer Roughness of sewer Hydraulic mean depth of sewer Grade of sewer Length of sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Orthotolidine test is used for determination of Dissolved oxygen Biochemical oxygen demand Dose of coagulant Residual chlorine Dissolved oxygen Biochemical oxygen demand Dose of coagulant Residual chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The alum, when added as a coagulant in water Does not affect pH value of water Does not require alkalinity in water for flocculation Decreases pH value of water Increases pH value of water Does not affect pH value of water Does not require alkalinity in water for flocculation Decreases pH value of water Increases pH value of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of valve which allows water to flow in one direction but prevents its flow in the reverse direction is Air relief valve Sluice valve Reflux valve Pressure relief valve Air relief valve Sluice valve Reflux valve Pressure relief valve ANSWER DOWNLOAD EXAMIANS APP
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