Environmental Engineering The pathogens can be killed by Nitrification Chlorination Oxidation None of these Nitrification Chlorination Oxidation None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The percentage of filtered water, which is used for backwashing in rapid sand filters, is about 5 to 7 2 to 4 0.4 to 1.0 0.2 to 0.4 5 to 7 2 to 4 0.4 to 1.0 0.2 to 0.4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If Biochemical oxygen demand (BOD) of a town is 20000 kg/day and BOD per capita per day is 0.05 kg, then population equivalent of town is 1,00,000 4000 4,00,000 1000 1,00,000 4000 4,00,000 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In water treatment, rapid gravity filters are adopted to remove Floating solids and dissolved inorganic solids Dissolved organic substances Dissolved solids and dissolved gases Bacteria and colloidal solids Floating solids and dissolved inorganic solids Dissolved organic substances Dissolved solids and dissolved gases Bacteria and colloidal solids ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank increases if Particle size is decreased None of these The depth of tank is decreased The surface area of tank is increased Particle size is decreased None of these The depth of tank is decreased The surface area of tank is increased ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum discharge of a tube well is about 500 liters/sec 5 liters/sec 1000 liters/sec 50 liters/sec 500 liters/sec 5 liters/sec 1000 liters/sec 50 liters/sec ANSWER DOWNLOAD EXAMIANS APP
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