E-PolyLearning

26. The Kozney-Carman equation, rewritten in terms of non-dimensional numbers gives (ΔP/pu² ) proportional to
a. A
b. B
c. C
d. D
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Answer: (a).A

27. The equation given below is called the __________ .
a. Colebrook formula
b. Von-Karman equation
c. Fanning equation
d. none of these
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Answer: (b).Von-Karman equation

28. Pick out the Blake-Plummer equation (valid for large Nʀₑ) for fluid flow through beds of solids.
a. A
b. B
c. C
d. D
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Answer: (d).D

29. The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by
a. A
b. B
c. C
d. D
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Answer: (a).A

30. For flow through a venturi at a particular discharge, the correct relationships among heads at points X, Y, and Z are
a. h₁ > h₂ < h₃
b. h₁ > h₂ > h₃
c. h₂ < h₁ < h₃
d. h₁ < h₂ < h₃
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Answer: (a).h₁ > h₂ < h₃

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