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Mechanical Engineering :: Hydraulics and Fluid Mechanics

  1. The volumetric change of the fluid caused by a resistance is known as

  2. A.

     Volumetric strain

    B.

     Volumetric index

    C.

     Compressibility

    D.

     Adhesion


  3. The discharge over a rectangular notch is

  4. A.

     Inversely proportional to H3/2

    B.

     Directly proportional to H3/2

    C.

     Inversely proportional to H5/2

    D.

     Directly proportional to H5/2


  5. The flow in which the particles of a fluid attain such velocities that varies from point to point in magnitude and direction as well as from instant to instant, is known as

  6. A.

     One dimensional flow

    B.

     Uniform flow

    C.

     Steady flow

    D.

     Turbulent flow


  7. The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as

  8. A.

     One dimensional flow

    B.

     Uniform flow

    C.

     Steady flow

    D.

     Turbulent flow


  9. The specific weight of water is 1000 kg/m3

  10. A.

     At normal pressure of 760 mm

    B.

     At 4°C temperature

    C.

     At mean sea level

    D.

     All the above


  11. Density of water is maximum at

  12. A.

     0° C

    B.

     0° K

    C.

     4° C

    D.

     100° C


  13. The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be

  14. A.

     500 kg

    B.

     1000 kg

    C.

     1500 kg

    D.

     2000 kg


  15. Euler's dimensionless number relates the following

  16. A.

     Inertial force and gravity

    B.

     Viscous force and inertial force

    C.

     Viscous force and buoyancy force

    D.

     Pressure force and inertial force


  17. The force per unit length is the unit of

  18. A.

     Surface tension

    B.

     Compressibility

    C.

     Capillarity

    D.

     Viscosity


  19. A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is

  20. A.

     2.89 kN

    B.

     8.29 kN

    C.

     9.28 kN

    D.

     28.9 kN