Environmental Engineering The disinfection efficiency of chlorine increases by (i) Decreasing the time of contact (ii) Decreasing the temperature of water (iii) Increasing the temperature of water Both (i) and (ii) Only (i) Only (iii) Both (i) and (iii) Both (i) and (ii) Only (i) Only (iii) Both (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Average rate of water consumption per head per day as per Indian Standard is 100 liters 135 liters 165 liters 200 liters 100 liters 135 liters 165 liters 200 liters ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The most commonly used sewer under culverts is Horseshoe type sewer Circular cast iron sewer Semi-elliptical sewer Circular brick sewer Horseshoe type sewer Circular cast iron sewer Semi-elliptical sewer Circular brick sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alkalinity in water is expressed as milligrams per litre in terms of equivalent Calcium carbonate Sodium carbonate Calcium hydroxide Magnesium carbonate Calcium carbonate Sodium carbonate Calcium hydroxide Magnesium carbonate 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 4,00,000 1,00,000 4000 1000 4,00,000 1,00,000 4000 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the sewage contains grease and fatty oils, these are removed in Detritus tanks Sedimentation tanks Skimming tanks Grit chambers Detritus tanks Sedimentation tanks Skimming tanks Grit chambers ANSWER DOWNLOAD EXAMIANS APP
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