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Question
In a Lacey regime channel:
    1. The bed load is zero
    2. The suspended load is zero
    3. The bed slope is a function of the full supply discharge and the silt size.
Which of the above statement is/ are correct?
yslh'kklu pSuy esa%
    1. fcLrj dk Hkkj 'kwU; gS
    2. fuyafcr Hkkj 'kwU; gS
    3. fcLrj <yku iw.kZ vkiwfrZ fuoZgu vkSj xkn ds vkdkj dk ,d dk;Z gSA
    mi;qZDr dFku esa ls dkSulk lgh gSa\
A.
1 and 2
B.
3 only
C.
2 and 3
D.
2 only
Answer ( Option B)

3 only

Solution

In Lacey's regime channel
          f = 1.76√dmm
          S = f2/3/3340Q1/6 
        f = silt factor, Q = discharge, d = silt size
    Hence
    The bed slope is a function of the full supply discharge and the silt size.

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