The following data are given for a channel-type grit chamber of length

1.	The following data are given for a channel-type grit chamber of length 7.5 m.
A.	0.01 mm
B.	0.21 mm
C.	1.92 mm
D.	6.64 mm
Answer» C. 1.92 mm

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The following data are given for a channel-type grit chamber of length 7.5 m.

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