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Mechanical Engineering :: Hydraulics and Fluid Mechanics

  1. The theoretical velocity of jet at vena contracta is (where H = Head of water at vena contracta)

  2. A.

    2gH

    B.

    \(H \sqrt{2g}\)

    C.

    \(2g\sqrt{H}\)

    D.

    \(\sqrt{2gH}\)

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  3. According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain.

  4. A.

    equal to

    B.

    directly proportional

    C.

    inversely proportional

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  5. The force per unit length is the unit of

  6. A.

    surface tension

    B.

    compressibility

    C.

    capillarity

    D.

    viscosity

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  7. The shear stress-strain graph for a non-newtonian fluid is a curve.

  8. A.

    Correct

    B.

    Incorrect

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  9. The intensity of pressure at any point, in a liquid, is __________ to the depth of liquid from the surface.

  10. A.

    equal

    B.

    directly proportional

    C.

    inversely proportional

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