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Mechanical Engineering :: Hydraulics and Fluid Mechanics

  1. The shear stress between the two liquid layers is __________ proportional to the distance between two layers.

  2. A.

    directly

    B.

    indirectly


  3. The mass per unit volume of a liquid at a standard temperature and pressure is called

  4. A.

    specific weight

    B.

    mass density

    C.

    specific gravity

    D.

    none of these


  5. The centre of pressure acts __________ the centre of gravity of immersed surface.

  6. A.

    at

    B.

    above

    C.

    below


  7. A flow through an expanding tube at constant rate is called

  8. A.

    steady uniform flow

    B.

    steady non-uniform flow

    C.

    unsteady uniform flow

    D.

    unsteady non-uniform flow


  9. When a body is placed over a liquid, it is subjected to gravitational force and upthrust of the liquid.

  10. A.

    True

    B.

    False