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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


  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


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

  6. A.

    True

    B.

    False


  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


  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