What is the minimum size of the bed material that will remain at rest – McqOptions

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1.	What is the minimum size of the bed material that will remain at rest in a channel?
A.	d > or = 11 R.S
B.	d < or = 11 R.S
C.	d = 11 R.S
D.	d > 11 R.S
Answer» B. d < or = 11 R.S

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