Category: Waste Water Engineering

A. Fruhling
B. Lloyd David
C. Kuichling
D. All of these

A. 25,000 to 35,000 litres/sqm/day
B. 40,000 to 50,000 litres/sqm/day
C. 50,000 to 60,000 litres/sqm/day
D. 80,000 to 100,000 litres/sqm/day

A. City
B. Out-fall
C. Tail end
D. Any point

A. Inlets are provided on the road surface at the lowest point for draining rain water
B. Inlets are generally provided at an interval of 30 m to 60 m along straight roads
C. Inlets having horizontal openings, are called horizontal inlets
D. All the above

A. 100 m
B. 150 m
C. 200 m
D. 300 m

A. Maximum daily flow = 2 times the average daily flow
B. Maximum daily flow = average daily flow
C. Sewers are designed for minimum permissible velocity at minimum flow
D. All the above

A. Bend
B. Junction
C. Change of gradient
D. All the above

A. Septic tanks are horizontal continuous flow type of sedimentation tanks
B. Septic tanks are generally provided a detention period of 12 to 36 hours
C. Septic tanks are completely covered and high vent shafts are provided for the escape of foul gases
D. None of these

A. Branch sewers
B. Main sewers
C. Trunk sewers
D. All the above

A. Less than 150
B. Between 150 to 200
C. Between 200 to 300
D. More than 500