A. 100 cm
B. 90 cm
C. 80 cm
D. 50 cm
A. Used to remove the grease and oil
B. Those from which sludge is skimmed out
C. Tanks provided with self- cleansing screens
D. Improved version of grit chambers
A. Bazin
B. Crimp and Bruges
C. William-Hazen
D. Kutter
A. Brick sewer
B. Cast iron sewer
C. R.C.C. sewer
D. Lead sewer
A. Its intensity
B. Its direction
C. Its frequency
D. All the above
A. Bath rooms
B. Wash basins
C. Kitchen sinks
D. Toilets
A. Running expenses
B. Maintenance expenses
C. Operation expenses
D. All the above
A. 0.112 kg in suspension
B. 0.112 kg in solution
C. 0.225 kg in solution
D. Both A. and C. of above
A. A sedimentation tank and an activated sludge treatment plant
B. A plant consisting of Imhoff tanks with low rate trickling filters
C. Sedimentation tanks with high rate trickling filters
D. None of these
A. A trunk sewer
B. An outfall sewer
C. A main sewer
D. An intercepting sewer