Fluid Mechanics & Hydraulic Machinery Important Questions – FMHM Imp Qusts

Fluid Mechanics & Hydraulic Machinery Important Questions Pdf file – FMHM Imp Qusts

Please find the attached pdf file of Fluid Mechanics & Hydraulic Machinery Important Questions Bank – FMHM Imp Qusts

Link – FMHM Question Bank

UNIT-I

  1. Define viscosity and derive Newton’s law of viscosity.b)If the velocity distribution over a plate is given by u = (2/3)y – y2,in which ‘u’ is the velocity in m/s at a distance ‘y’ meter above theplate, determine the shear stress at y=0 and y=0.15m. Take dynamicviscosity of fluid as 8.63 poise.
  2. Differentiate between U-tube and Inverted U-Tube differentialmanometers.
  3. State Newton’s law viscosity and explain how viscosity varies with temperature for liquids and gases.

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UNIT-II

  1. Define path line, stream line steam tube and streak line.
  2. Define and state the applications of momentum equation.
  3. State the assumptions and derive Bernoulli’s equation for flowalong a stream line.

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UNIT-III

  1. Derive an expression for displacement thickness due to formationof boundary layer.
  2. Define boundary layer and boundary layer thickness.
  3. Define displacement thickness, momentum thickness and energythickness.

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UNIT-IV

  1. Differentiate the impulse and reaction turbines.
  2. A jet of water 50 mm in diameter issues with a velocity of 10m/secand impinges normally on a stationary flat plate which moves inforward motion. Determine the force exerted by the jet on the plateand the work done.
  3. Give the classification of turbines.

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UNIT-V

  1. What is the necessity of priming in centrifugal pumps?
  2. Give the classification of centrifugal pumps.
  3. Differentiate between centrifugal and reciprocating pumps.

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