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According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)?

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  1. flv²/2gd
  2. flv²/gd
  3. 3flv²/2gd
  4. 4flv²/2gd

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Answer: Option 4

Let'

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The loss of head at exit of a pipe is (where v = Velocity of liquid in the pipe)?

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Answer: Option 2 Let'

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Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f₁ and that for smooth pipe is f₂. Pick out the correct statement.?

Answer: Option 3 Let'

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