Category: Waste Water Engineering

A. Anaerobic bacteria flourish in the absence of oxygen
B. Aerobic bacteria flourish in the presence of oxygen
C. Facultative bacteria flourish with or without oxygen
D. All the above

A. Top side
B. Bottom side
C. Horizontal side
D. All sides

A. D
B. D /2
C. D/3
D. D/4

A. 1
B. 2 to 3
C. 3 to 5
D. 5 to 10

A. Turbidity
B. Colour
C. Odour
D. All the above

A. Hydrogen sulphide
B. Carbon dioxide
C. Methane
D. Oxygen

A. Tensile force
B. Compressive force
C. Bending force
D. Shearing force

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

A. Flow velocity is kept 0.09 m/sec
B. Detention period is kept 3 to 4 minutes
C. Organic and inorganic materials are separated
D. All the above

A. Water test
B. Ball test
C. Mirror test
D. All of these