Environmental Engineering In water treatment, rapid gravity filters are adopted to remove Dissolved organic substances 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 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Facultative bacteria are able to work in Presence of oxygen only Presence of water Presence as well as in absence of oxygen Absence of oxygen only Presence of oxygen only Presence of water Presence as well as in absence of oxygen Absence of oxygen only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The minimum and maximum diameters of sewers shall preferably be 60 cm and 300 cm 15 cm and 100 cm 15 cm and 300 cm 30 cm and 450 cm 60 cm and 300 cm 15 cm and 100 cm 15 cm and 300 cm 30 cm and 450 cm 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) (i)and(iv) (ii) and (iii) (i) and (ii) (ii) and (iv) (i)and(iv) (ii) and (iii) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum efficiency of BOD removal is achieved in Oxidation pond Aerated lagoons Trickling filters Oxidation ditch Oxidation pond Aerated lagoons Trickling filters Oxidation ditch ANSWER DOWNLOAD EXAMIANS APP
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