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 4,00,000 1000 4000 1,00,000 4,00,000 1000 4000 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 (i)and(iv) (i) and (ii) (ii) and (iv) (ii) and (iii) (i)and(iv) (i) and (ii) (ii) and (iv) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The most commonly used sewer under culverts is Semi-elliptical sewer Circular brick sewer Horseshoe type sewer Circular cast iron sewer Semi-elliptical sewer Circular brick sewer Horseshoe type sewer Circular cast iron sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effect of increasing diameter of sewer on the self cleansing velocity is Nil To increase it To decrease it Fluctuating Nil To increase it To decrease it Fluctuating 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) All are correct Only (i) (i) and (ii) (i) and (iii) All are correct Only (i) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In facultative stabilization pond, the sewage is treated by Aerobic bacteria only Algae only Dual action of aerobic bacteria and anaerobic bacteria Sedimentation Aerobic bacteria only Algae only Dual action of aerobic bacteria and anaerobic bacteria Sedimentation ANSWER DOWNLOAD EXAMIANS APP
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