Waste Water Engineering A rainfall may be classified as acidic if its pH value is less or equal to 7 5 6.5 6 7 5 6.5 6 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The drainage area of a town is 12 hectares. Its 40% area is hard pavement ( K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration for the areas as 30 minutes and using the formula Ps = 900/(t + 60) the maximum run off is 0.10 cumec 0.15 cumec 0.20 cumec 0.12 cumec 0.10 cumec 0.15 cumec 0.20 cumec 0.12 cumec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The rate of accumulation of sludge in septic tanks is recommended as 30 litres/person/year 25 litres/person/month 30 litres/person/month 25 litres/person/year 30 litres/person/year 25 litres/person/month 30 litres/person/month 25 litres/person/year ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In 1000 kg of sewage, the total solids approximate 5 kg to 7.5 kg 0.5 to 1.0 kg 1 kg to 2.0 kg 7.5 kg to 10 kg 5 kg to 7.5 kg 0.5 to 1.0 kg 1 kg to 2.0 kg 7.5 kg to 10 kg ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The ratio of maximum sewage flow to average sewage flow for trunk mains having diameters more than 1.25 m, is 4 3 1.5 2 4 3 1.5 2 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The settlement velocity of a solid (diameter 0.5 mm, specific gravity 1.75) in water having temperature 10°C, is 500 cm/sec 213.5 cm/sec 313.5 cm/sec 413.5 cm/sec 500 cm/sec 213.5 cm/sec 313.5 cm/sec 413.5 cm/sec ANSWER DOWNLOAD EXAMIANS APP