Environmental Engineering The polluted water is one which Consists of undesirable substances rendering it unfit for drinking and domestic use Is contaminated Contains pathogenic bacteria Is safe and suitable for drinking and domestic use Consists of undesirable substances rendering it unfit for drinking and domestic use Is contaminated Contains pathogenic bacteria Is safe and suitable for drinking and domestic use ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The process of lagooning is primarily a means of Disposing of sludge Increasing flow of sewage through imhoff tanks Reducing the excessive flow in sewers Increasing the capacity of storage reservoirs Disposing of sludge Increasing flow of sewage through imhoff tanks Reducing the excessive flow in sewers Increasing the capacity of storage reservoirs 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 Only (iii) Both (i) and (iii) Both (i) and (ii) Only (i) Only (iii) Both (i) and (iii) Both (i) and (ii) Only (i) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of filtration in slow sand filters in million litres per day per hectare is about 500 to 600 100 to 150 50 to 60 1400 to 1500 500 to 600 100 to 150 50 to 60 1400 to 1500 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The specific gravity of sewage is Much greater than 1 Slightly greater than 1 Slightly less than 1 Equal to 1 Much greater than 1 Slightly greater than 1 Slightly less than 1 Equal to 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are normally designed for 5 - 10 years 15 - 20 years 28 - 30 years 15 - 28 years 5 - 10 years 15 - 20 years 28 - 30 years 15 - 28 years ANSWER DOWNLOAD EXAMIANS APP
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