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Mechanical Engineering :: Hydraulics and Fluid Mechanics

  1. The velocity of liquid flowing through an orifice varies with the available head of the liquid.

  2. A.

    Agree

    B.

    Disagree

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  3. The force of buoyancy is always __________ the weight of the liquid displaced by the body.

  4. A.

    equal to

    B.

    less than

    C.

    more than

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  5. The coefficient of discharge is the ratio of theoretical discharge to the actual discharge through an orifice.

  6. A.

    True

    B.

    False

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  7. The quantity of a liquid flowing per second through a section of a pipe or a channel is called discharge and is measured in cumecs (m3/s).

  8. A.

    True

    B.

    False

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  9. The purpose of a surge tank is

  10. A.

    to control the pressure variations due to rapid changes in the pipe line flow

    B.

    to eliminate water hammer possibilities

    C.

    to regulate flow of water to turbines by providing necessary retarding head of water

    D.

    all of the above

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