The relationship between Manning's coefficient and Chezy's coefficient is given by

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BPSC AE Paper 6 (Civil) 14 Oct 2022 Official Paper
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  1. C = 
  2. C = 
  3. C = 
  4. C = 

Answer (Detailed Solution Below)

Option 3 : C = 
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Calculation:

Chezy's Formula:

  ............................ (i)

Manning's Formula:

  .......................... (ii)

where C = Chezy's Constant

R = Hydraulic Radius

S = Hydraulic Gradient Line

 n = Manning's Roughness Coefficient

From equations (i) and (ii)

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