Environmental Engineering Orthotolidine test is used for determination of Residual chlorine Biochemical oxygen demand Dissolved oxygen Dose of coagulant Residual chlorine Biochemical oxygen demand Dissolved oxygen Dose of coagulant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Septic tank is a (i) Settling tank (ii) Digestion tank (iii) Aeration tank (i) and (iii) Only (iii) Only (i) (i) and (ii) (i) and (iii) Only (iii) Only (i) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The layout of distribution system in which water flows towards the outer periphery is Grid iron system Radial system Ring system Dead end system Grid iron system Radial system Ring system Dead end system 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) 8B 2B 4B B 8B 2B 4B B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Scour valves are provided At every summit of rising mains At every depression and dead ends to drain out the waste water that may collect there At the foot of rising main along the slope to prevent back running of water At street corners to control the flow of water At every summit of rising mains At every depression and dead ends to drain out the waste water that may collect there At the foot of rising main along the slope to prevent back running of water At street corners to control the flow of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In a BOD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of diluted sample at the beginning was 6 ppm and it was 4 ppm at the end of 5 day incubation at 20°C. The BOD of raw sewage will be 400 ppm 300 ppm 100 ppm 200 ppm 400 ppm 300 ppm 100 ppm 200 ppm ANSWER DOWNLOAD EXAMIANS APP
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