Environmental Engineering On standard silica scale, the turbidity in drinking water should be limited to 10 ppm 20 ppm 50 ppm 30 ppm 10 ppm 20 ppm 50 ppm 30 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The slope of sewer shall be Zero Steeper than 1 in 20 Given in the direction opposite to natural slope of ground Given in the direction of natural slope of ground Zero Steeper than 1 in 20 Given in the direction opposite to natural slope of ground Given in the direction of natural slope of ground ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the Dissolved oxygen in water Hardness in water Turbidity in water Residual chlorine in water Dissolved oxygen in water Hardness in water Turbidity in water Residual chlorine in water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In lime-soda process Only carbonate hardness is removed Only noncarbonated hardness is removed Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Only carbonate hardness is removed Only noncarbonated hardness is removed Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of valve, which is provided on the suction pipe in a tube-well, is Air relief valve Reflux valve Sluice valve Pressure relief valve Air relief valve Reflux valve Sluice valve Pressure relief valve ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The amount of coagulant needed for coagulation of water increases with (i) Increase in turbidity of water (ii) Decrease in turbidity of water (iii) Increase in temperature of water (iv) Decrease in temperature of water The correct answer is (ii) and (iv) (ii) and (iii) (i) and (ii) (i)and(iv) (ii) and (iv) (ii) and (iii) (i) and (ii) (i)and(iv) ANSWER DOWNLOAD EXAMIANS APP
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