For the usual turbulent flow, calculate the critical shear stress if the mean diameter of the grain particle of bed material is 0.3 mm.

For the usual turbulent flow, calculate the critical shear stress if t

1.	For the usual turbulent flow, calculate the critical shear stress if the mean diameter of the grain particle of bed material is 0.3 mm.
A.	0.300 N/m<sup>2</sup>
B.	0.106 N/m<sup>2</sup>
C.	0.206 N/m<sup>2</sup>
D.	0.116 N/m<sup>2</sup>
Answer» D. 0.116 N/m<sup>2</sup>

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For the usual turbulent flow, calculate the critical shear stress if the mean diameter of the grain particle of bed material is 0.3 mm.

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