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A. 1 minute
B. 2 minutes
C. 3 minutes
D. 5 minutes
A. 500 kg
B. 1000 kg
C. 1500 kg
D. 2000 kg
E. 4000 kg
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. law of gravitation
B. Archimedes principle
C. principle of buoyancy
D. all of the above
E. continuity equation
A. Acid fermentation
B. Acid regressio
C. Alkaline fermentation
D. None of these
A. Minimum velocity of 0.45 m/sec, is maintained at its minimum flow
B. A maximum velocity of 0.90 m/sec, is maintained at its maximum flow
C. Both A. and B.
D. Neither A. nor B.
A. From low lying areas
B. From flat areas
C. From basements
D. All the above