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Mechanical Engineering :: Hydraulics and Fluid Mechanics in ME

  1. The Fourneyron turbine is _________ reaction turbine.

  2. A.

     An axial flow

    B.

     An inward flow

    C.

     An outward flow

    D.

     A mixed flow


  3. The Thomson's turbine is _________ reaction turbine.

  4. A.

     An axial flow

    B.

     An inward flow

    C.

     An outward flow

    D.

     A mixed flow


  5. Which of the following is not a reaction turbine?

  6. A.

     Fourneyron turbine

    B.

     Journal turbine

    C.

     Thomson's turbine

    D.

     Pelton wheel


  7. The bulk modulus of elasticity with increase in pressure

  8. A.

     Increases

    B.

     Decreases

    C.

     Remain constant

    D.

     Increases first up to certain limit and then decreases


  9. Choose the correct relationship

  10. A.

     Specific gravity = gravity × density

    B.

     Dynamic viscosity = kinematic viscosity × density

    C.

     Gravity = specific gravity × density

    D.

     Kinematic viscosity = dynamic viscosity × density


  11. The mass per unit volume of a liquid at a standard temperature and pressure is called

  12. A.

     Specific weight

    B.

     Mass density

    C.

     Specific gravity

    D.

     None of these


  13. The weight per unit volume of a liquid at a standard temperature and pressure is called

  14. A.

     Specific weight

    B.

     Mass density

    C.

     Specific gravity

    D.

     None of these


  15. The flow in a pipe is neither laminar nor turbulent when Reynold number is

  16. A.

     Less than 2000

    B.

     Between 2000 and 2800

    C.

     More than 2800

    D.

     None of these


  17. The flow in a pipe is turbulent when Reynold number is

  18. A.

     Less than 2000

    B.

     Between 2000 and 2800

    C.

     More than 2800

    D.

     None of these


  19. The pressure at a point 4 m below the free surface of water is

  20. A.

     19.24 kPa

    B.

     29.24 kPa

    C.

     39.24 kPa

    D.

     49.24 kPa