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Chemical Engineering :: Fluid Mechanics

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. f = 16/NRe, is valid for

    2. A.

     Turbulent flow
    B.

     Laminar flow through an open channel
    C.

     Steady flow
    D.

     None of these

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  2. A fluid is a substance, that

    3. A.

     Has to be kept in a closed container
    B.

     Is almost incompressible
    C.

     Has zero shear stress
    D.

     Flows when even a small shear is applied to it

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  3. A fluid is the one, which

    4. A.

     Cannot remain at rest under the action of shear force
    B.

     Continuously expands till it fills any container
    C.

     Is incompressible
    D.

     Permanently resists distortion

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  4. Slugging occurs in a fluidised bed, if the bed is

    5. A.

     Narrow
    B.

     Deep
    C.

     Both A & B
    D.

     Neither A nor B

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  5. A gas

    6. A.

     Signifies absence of density
    B.

     Can resist shearing action
    C.

     Is incompressible
    D.

     Is a supercritical vapor

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  6. A mixed flow centrifugal pump

    7. A.

     Employs such an impeller, through which the flow is a combination of radial & axial flow
    B.

     Mixes the two fluids before pumping them
    C.

     Pumps the two fluids separately and then mixes them
    D.

     Employs impellers in both the radial & axial directions

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  7. A Newtonion fluid is that

    8. A.

     Which follows Newton
    B.

     Which needs a minimum shear, before it starts deforming
    C.

     For which shear & deformation are related as T = μ ∂u/∂y
    D.

     None of these

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  8. With increase in the schedule number of a pipe of a particular nominal size, the

    9. A.

     Wall thickness also increases
    B.

     I.D. of the pipe decreases
    C.

     O.D. of the pipe remains constant
    D.

     All of the above

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  9. A perfect gas

    10. A.

     Does not satisfy PV = nRT
    B.

     Is incompressible and has zero viscosity
    C.

     Has constant specific heat
    D.

     Can't develop shear stresses

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  10. The schedule number of a pipe is an indication of its

    11. A.

     Size
    B.

     Roughness
    C.

     Material density
    D.

     Wall thickness

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