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Mechanical Engineering :: Hydraulics and Fluid Mechanics

  1. The pressure intensity in kN/m2 (or kPa) at any point in a liquid is (where w = Specific weight of liquid, and h = Depth of liquid from the surface)

  2. A.

    w

    B.

    wh

    C.

    w/h

    D.

    h/w


  3. The hydraulic gradient line is always parallel to the centre line of the pipe.

  4. A.

    Correct

    B.

    Incorrect


  5. Barometer is used to measure

  6. A.

    velocity of liquid

    B.

    atmospheric pressure

    C.

    pressure in pipes and channels

    D.

    difference of pressure between two points in a pipe


  7. A closed tank is completely filled with an oil. If it is made to move with a horizontal acceleration, then the pressure at the back end will be more than that at the front end.

  8. A.

    Correct

    B.

    Incorrect


  9. The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is

  10. A.

    200 kg/m3

    B.

    400 kg/m3

    C.

    600 kg/m3

    D.

    800 kg/m3