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Mechanical Engineering :: Hydraulics and Fluid Mechanics

  1. The specific gravity has no units.

  2. A.

    Agree

    B.

    Disagree

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  3. The depth of water in a channel corresponding to the minimum specific energy is known as critical depth.

  4. A.

    Agree

    B.

    Disagree

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  5. The ratio of the inertia force to the gravity force is called Froude number.

  6. A.

    Agree

    B.

    Disagree

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  7. Which of the following statement is wrong?

  8. A.

    A flow whose streamline is represented by a curve, is called two dimensional flow.

    B.

    The total energy of a liquid particle is the sum of potential energy, kinetic energy and pressure energy.

    C.

    The length of divergent portion in a venturimeter is equal to the convergent portion.

    D.

    A pitot tube is used to measure the velocity of flow at the required point in a pipe.

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  9. A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is

  10. A.

    \(\frac { bd^2 } { 12 } + \bar x\)

    B.

    \(\frac { d^2 } { 12\bar x } + \bar x\)

    C.

    \(\frac { b^2 } { 12 } + \bar x\)

    D.

    \(\frac { d^2 } { 12 } + \bar x\)

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