Environmental Engineering The characteristics of fresh and septic sewage respectively are Acidic and alkaline Both acidic Alkaline and acidic Both alkaline Acidic and alkaline Both acidic Alkaline and acidic Both alkaline ANSWER DOWNLOAD EXAMIANS APP
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 Settling velocity increases with Temperature of liquid Size of particles Specific gravity of solid particles Depth of tank Temperature of liquid Size of particles Specific gravity of solid particles Depth of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following compounds is widely used for algae control? Calcium chloride Copper sulphate Sodium sulphate Sodium chloride Calcium chloride Copper sulphate Sodium sulphate Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The overflow rate for plain sedimentation tanks is about 500 to 750 liters/hour/ m² 1250 to 1500 liters/hour/m² 1500 to 2000 liters/hour/m² 1000 to 1250 liters/hour/ m² 500 to 750 liters/hour/ m² 1250 to 1500 liters/hour/m² 1500 to 2000 liters/hour/m² 1000 to 1250 liters/hour/ m² ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The ratio of 5 day BOD to ultimate BOD is about 43864 1 43833 43894 43864 1 43833 43894 ANSWER DOWNLOAD EXAMIANS APP
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