Chemical Engineering MCQs

Page No. 230

Which of the following exemplifies a three dimensional fluid flow ?


aFluid flow at the inlet to a nozzle


bFluid flow between parallel plates


cViscous fluid flow between converging plates


dNone of these



Piezometric head is the sum of the ______________ heads?


aElevation & kinetic energy


bElevation & pressure


cKinetic energy & pressure


dNone of these


View Answer Elevation & pressure

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


aH


bH2


cH3/2


dH1/2


View Answer H2

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


aPress


bTurbine


cPump


dCoupling


View Answer Press

Multistage compressors are used in industry, because they____________________?


aReduce the cost of compressor


bReduce the size requirement


cResemble closely to isothermal compression


dAre easy to control



Dimension of kinematic viscosity is_____________________?


aMLT-1


bL2T-1


cL2T


dL2T-2


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


bBottom plate moving and the top plate fixed


cBoth the plates fixed


dBoth the plates moving



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


aSurface tension


bGravity


cViscous


dElastic


View Answer Surface tension

Potential flow is the flow of______________?


aCompressible fluids with shear


bCompressible fluids with no shear


cIncompressible fluids with shear


dIncompressible fluids with no shear



Prandtl number is a measure of the__________________?


aHeat conduction to viscosity of a fluid


bCp/Cv of a fluid


cElastic force to pressure force in the fluid flow


dInertial force to elastic force in the fluid flow



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