Chemical Engineering MCQs

Page No. 230

Which of the following exemplifies a three dimensional fluid flow ?


aFluid flow at the inlet to a nozzle

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bFluid flow between parallel plates

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cViscous fluid flow between converging plates

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dNone of these

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Piezometric head is the sum of the ______________ heads?


aElevation & kinetic energy

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bElevation & pressure

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cKinetic energy & pressure

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dNone of these

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View Answer Elevation & pressure

The discharge through a semi-circular weir varies as (where, H = Head of liquid.) ?


aH

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bH2

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cH3/2

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dH1/2

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View Answer H2

Hydraulic _____________ works on the principle of Pascal’s law of transmission of fluid pressure?


aPress

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bTurbine

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cPump

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dCoupling

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View Answer Press

Multistage compressors are used in industry, because they____________________?


aReduce the cost of compressor

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bReduce the size requirement

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cResemble closely to isothermal compression

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dAre easy to control

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Dimension of kinematic viscosity is_____________________?


aMLT-1

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bL2T-1

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cL2T

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dL2T-2

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View Answer L2T-1

In case of Couette flow, the fluid flow is between two large flat parallel plates with___________________?


aTop plate moving and the bottom plate fixed

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bBottom plate moving and the top plate fixed

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cBoth the plates fixed

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dBoth the plates moving

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Weber number is the ratio of inertial force to _____________ force?


aSurface tension

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bGravity

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cViscous

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dElastic

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View Answer Surface tension

Potential flow is the flow of______________?


aCompressible fluids with shear

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bCompressible fluids with no shear

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cIncompressible fluids with shear

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dIncompressible fluids with no shear

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Prandtl number is a measure of the__________________?


aHeat conduction to viscosity of a fluid

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bCp/Cv of a fluid

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cElastic force to pressure force in the fluid flow

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dInertial force to elastic force in the fluid flow

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