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Mechanical Engineering :: Hydraulics and Fluid Mechanics

  1. A fluid whose viscosity changes with the rate of deformation or shear strain is known as non-newtonian fluid.True

  2. A.

    True

    B.

    False

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  3. When the flow in an open channel is gradually varied, the flow is said to be

  4. A.

    steady uniform flow

    B.

    steady non-uniform flow

    C.

    unsteady uniform flow

    D.

    unsteady non-uniform flow

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  5. When the Mach number is equal to unity, the flow is called sonic flow.

  6. A.

    True

    B.

    False

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  7. The total pressure on the bottom of a closed cylindrical vessel completely filled up with a liquid is the sum of the total centrifugal pressure and the weight of the liquid in the vessel.

  8. A.

    Correct

    B.

    Incorrect

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  9. A weir, generally, used as a spillway of a dam is

  10. A.

    narrow crested weir

    B.

    broad crested weir

    C.

    Ogee weir

    D.

    submerged weir

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