Environmental Engineering The biochemical treatment of sewage effluents is essentially a process of Alkalinization Reduction Oxidation Dehydration Alkalinization Reduction Oxidation Dehydration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Chlorine demand of water is equal to Applied chlorine Difference of applied and residual chlorine Sum of applied and residual chlorine Residual chlorine Applied chlorine Difference of applied and residual chlorine Sum of applied and residual chlorine Residual chlorine 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 (iii) (i) and (ii) (i)and(iv) (ii) and (iv) (ii) and (iii) (i) and (ii) (i)and(iv) (ii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to Total hardness total alkalinity Total hardness Non carbonate hardness Total alkalinity Total hardness total alkalinity Total hardness Non carbonate hardness Total alkalinity ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank increases if None of these Particle size is decreased The depth of tank is decreased The surface area of tank is increased None of these Particle size is decreased The depth of tank is decreased The surface area of tank is increased ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Corrosion in concrete sewers is caused by Nitrogen Dissolved oxygen Chlorine Septic conditions Nitrogen Dissolved oxygen Chlorine Septic conditions ANSWER DOWNLOAD EXAMIANS APP
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