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Fluid Mechanics - Section 1
Fluid Mechanics - Section 2
Fluid Mechanics - Section 3
Fluid Mechanics - Section 4
Fluid Mechanics - Section 5
Fluid Mechanics - Section 6
Fluid Mechanics - Section 7
Fluid Mechanics - Section 8
Fluid Mechanics - Section 9
Fluid Mechanics - Section 10
Fluid Mechanics - Section 11
Fluid Mechanics - Section 12
Fluid Mechanics - Section 13
Fluid Mechanics - Section 14
Fluid Mechanics - Section 15
Fluid Mechanics - Section 16
Fluid Mechanics - Section-17
  1. A pressure of 10 m head of water is equivalent to __________ kN/m².

    2. A.

     98
    B.

     147
    C.

     196
    D.

     49

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  2. Viscosity of water at 40°C lies in the range of

    3. A.

     1 x 10⁻³ to 2 x 10⁻³ kg/m.s
    B.

     0.5 x 10⁻³ to 1 x 10⁻³ kg/m.s
    C.

     1 to 2 kg/m.s
    D.

     0.5 to 1 kg/m.s

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  3. Which of the following conditions must be satisfied for lift force to be developed?

    4. A.

     The body should be bluff body
    B.

     The body should be stream lined
    C.

     Circulation around the body is essentially required
    D.

     The main stream velocity must approach the velocity of sound in that fluid medium

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  4. Pipes having diameter 14 inches or more are designated by their

    5. A.

     Outside diameter
    B.

     Inside diameter
    C.

     Schedule number
    D.

     None of these

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  5. For flow past a flat plate, if x is the distance along the plate in the direction of flow, the boundary layer thickness is proportional to

    6. A.

     √x
    B.

     1/√x
    C.

     X
    D.

     1/x

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  6. Power requirement of fans having constant wheel diameter varies __________ fan speed.

    7. A.

     As square of
    B.

     Directly as
    C.

     As cube of
    D.

     None of these

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  7. Which of the following equations applies to the fluid flow through a packed bed for very large Reynolds number?

    8. A.

     Fanning equation
    B.

     Blake-Pllummer equation
    C.

     Hagen-Poiseulle equation
    D.

     Kozney-Karman equation

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  8. Major loss in sudden contraction in pipe flow is due to

    9. A.

     Boundary friction
    B.

     Flow contraction
    C.

     Expansion of flow after sudden contraction
    D.

     None of these

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  9. The Prandtl pitot tube measures the

    10. A.

     Velocity at a point in the flow
    B.

     Pressure at a point
    C.

     Average flow velocity
    D.

     Pressure difference in pipe flow

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  10. Pick out the correct statement.

    11. A.

     Human blood is a Newtonion fluid
    B.

     A Newtonion fluid obeys Newton's law of cooling
    C.

     For a non-Newtonion fluid, a straight line passes through the origin in a plot between shear stress and shear gradient
    D.

     Thin lubricating oil is an example of a non-Newtonion fluid

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