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Mechanical Engineering :: Hydraulics and Fluid Mechanics

  1. A thick liquid like a syrup has a __________ viscosity than a light liquid like water.

  2. A.

    lesser

    B.

    greater


  3. The total pressure on the top of a closed cylindrical vessel competely filled up with a liquid is

  4. A.

    directly proportional to (radius)2

    B.

    inversely proportional to (radius)2

    C.

    directly proportional to (radius)4

    D.

    inversely proportional to (radius)4


  5. Poise is the unit of viscosity in C.G.S. system of units.

  6. A.

    Agree

    B.

    Disagree


  7. The discharge through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

  8. A.

    0.34 times

    B.

    0.67 times

    C.

    0.81 times

    D.

    0.95 times


  9. When the Mach number is more than 6, the flow is called

  10. A.

    sub-sonic flow

    B.

    sonic flow

    C.

    super-sonic flow

    D.

    hyper-sonic flow