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Mechanical Engineering :: Hydraulics and Fluid Mechanics

  1. When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called

  2. A.

    Pascal's law

    B.

    Archimede's principle

    C.

    principle of floatation

    D.

    Bernoulli's theorem


  3. The pressure at a stagnation point is always low.

  4. A.

    Agree

    B.

    Disagree


  5. When an internal mouthpiece is running full, the discharge through the mouthpiece is twice the discharge when it is running free.

  6. A.

    Correct

    B.

    Incorrect


  7. In two dimensional flow, the flow does not take place in a curve.

  8. A.

    True

    B.

    False


  9. In order to avoid tendency of separation at throat in a venturimeter, the ratio of the diameter at throat to the diameter of pipe should be

  10. A.

    \(\frac { 1 } { 16 } to \frac {1}{8}\)

    B.

    \(\frac { 1 } {8} to \frac {1}{4}\)

    C.

    \(\frac { 1 } { 4 } to \frac {1}{3}\)

    D.

    \(\frac { 1 } {3} to \frac {1}{2}\)