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Mechanical Engineering :: Hydraulics and Fluid Mechanics

Hydraulics and Fluid Mechanics - Section 1
Hydraulics and Fluid Mechanics - Section 2
Hydraulics and Fluid Mechanics - Section 3
Hydraulics and Fluid Mechanics - Section 4
Hydraulics and Fluid Mechanics - Section 5
Hydraulics and Fluid Mechanics - Section 6
Hydraulics and Fluid Mechanics - Section 7
Hydraulics and Fluid Mechanics - Section 8
Hydraulics and Fluid Mechanics - section-5
  1. The Fourneyron turbine is _________ reaction turbine.

    2. A.

     An axial flow
    B.

     An inward flow
    C.

     An outward flow
    D.

     A mixed flow

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

    3. A.

     An axial flow
    B.

     An inward flow
    C.

     An outward flow
    D.

     A mixed flow

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

    4. A.

     Fourneyron turbine
    B.

     Journal turbine
    C.

     Thomson's turbine
    D.

     Pelton wheel

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  4. The bulk modulus of elasticity with increase in pressure

    5. A.

     Increases
    B.

     Decreases
    C.

     Remain constant
    D.

     Increases first up to certain limit and then decreases

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  5. Choose the correct relationship

    6. A.

     Specific gravity = gravity × density
    B.

     Dynamic viscosity = kinematic viscosity × density
    C.

     Gravity = specific gravity × density
    D.

     Kinematic viscosity = dynamic viscosity × density

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

    7. A.

     Specific weight
    B.

     Mass density
    C.

     Specific gravity
    D.

     None of these

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

    8. A.

     Specific weight
    B.

     Mass density
    C.

     Specific gravity
    D.

     None of these

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

    9. A.

     Less than 2000
    B.

     Between 2000 and 2800
    C.

     More than 2800
    D.

     None of these

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

    10. A.

     Less than 2000
    B.

     Between 2000 and 2800
    C.

     More than 2800
    D.

     None of these

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

    11. A.

     19.24 kPa
    B.

     29.24 kPa
    C.

     39.24 kPa
    D.

     49.24 kPa

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