Category: Waste Water Engineering

A. CO
B. SO2
C. CO2
D. O3

A. 0°C
B. 15°C
C. 20°C
D. 25°C

A. 10 cm
B. 15 cm
C. 20 cm
D. All the above

A. A particle to travel along its length
B. A particle to travel from top surface to bottom sludge zone
C. The flow of sewage to fill the tank
D. None of these

A. More than the self-cleansing velocity
B. Less than the self-cleansing velocity
C. Less than 10 m/sec
D. More than 20 m/sec

A. 50 m
B. 100 m
C. 200 m
D. 300 m

A. 30 to 40%
B. 40 to 60%
C. 60 to 80%
D. 80 to 90%

A. Size
B. Shape
C. Weight
D. None of these

A. 10 litres
B. 15 litres
C. 20 litres
D. 25 litres

A. 2.5 to 3.0 m/sec
B. 3.0 to 4.0 m/sec
C. 3.5 to 4.5 m/sec
D. 4.5 to 5.5 m/sec