A. Screening
B. Skimming
C. Filtration
D. None of these
A. 10% less
B. 20% less
C. 10% more
D. 20% more
A. Velocity at dry weather flow
B. Velocity of water at flushing
C. Velocity at which no accumulation remains in the drains
D. Velocity of water in a pressure filter
A. moving
B. viscous
C. viscous and static
D. inviscous and moving
E. viscous and moving
A. 0.9 cm
B. 1.2 m
C. 1.5 m
D. > 1.5 m
A. MlL°T2
B. MlL°Tx
C. MlL r2
D. MlL2T2
E. MlL°t
A. Nitrites are formed
B. Nitrates are formed
C. Carbondioxide is formed
D. Ammonia is formed