Environmental Engineering The main disadvantage of oxidation pond is that BOD removal is very low None of these Maintenance and operation cost are high Large area is required for construction BOD removal is very low None of these Maintenance and operation cost are high Large area is required for construction ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The phenolic compounds in public water supply should not be more than 0.0001 ppm 0.001 ppm 0.01 ppm 0.1 ppm 0.0001 ppm 0.001 ppm 0.01 ppm 0.1 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In water treatment, rapid gravity filters are adopted to remove Bacteria and colloidal solids Floating solids and dissolved inorganic solids Dissolved solids and dissolved gases Dissolved organic substances Bacteria and colloidal solids Floating solids and dissolved inorganic solids Dissolved solids and dissolved gases Dissolved organic substances ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effective size of sand particles used in slow sand filters is 1.00 to 1.80 mm 0.35 to 0.60 mm 0.60 to 1.00 mm 0.25 to 0.35 mm 1.00 to 1.80 mm 0.35 to 0.60 mm 0.60 to 1.00 mm 0.25 to 0.35 mm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Period of cleaning of slow sand filters is about 2 - 3 months 10 - 12 days 1 - 2 year 24 - 48 hours 2 - 3 months 10 - 12 days 1 - 2 year 24 - 48 hours ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Hardy cross method of analysis of distribution system (i) Involves successive trials (ii) Takes economic aspects into account (iii) Is time consuming (i) and (iii) (i) and (ii) Only (i) All are correct (i) and (iii) (i) and (ii) Only (i) All are correct ANSWER DOWNLOAD EXAMIANS APP
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