Q
During washing of filter at the end of constant pressure filtration, the rate of washing equals the rate of filtration___________________?
-
A
A. At time zero
-
B
B. At the end of filtration
-
C
C. When half the filtrate has been obtained
-
D
D. At the end of filtration, but decreases with time subsequently
Correct Answer:
B. B. At the end of filtration
