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Mechanical Engineering :: Hydraulics and Fluid Mechanics

  1. A moving fluid mass may be brought to a static equilibrium position, by aplying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called

  2. A.

    Pascal's law

    B.

    Archimede's principle

    C.

    D-Alembert's principle

    D.

    none of these


  3. A pitot tube is used to measure the

  4. A.

    velocity of flow at the required point in a pipe

    B.

    pressure difference between two points in a pipe

    C.

    total pressure of liquid flowing in a pipe

    D.

    discharge through a pipe


  5. The total head of a liquid particle in motion is equal to

  6. A.

    pressure head + kinetic head + potential head

    B.

    pressure head - (kinetic head + potential head)

    C.

    potential head - (pressure head + kinetic head)

    D.

    kinetic head - (pressure head + potential head)


  7. An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.

  8. A.

    free

    B.

    partially

    C.

    full


  9. The reciprocal of Euler's number is called Newton number.

  10. A.

    Yes

    B.

    No