Chemical Engineering MCQs

Page No. 157

Isotherm on an enthalpy-concentration diagram, for an ideal solution will be a __________________?


aStraight line


bSine curve


cParabola


dHyperbola


View Answer Straight line

Each term in Bernoulli‟s equation represents the _____________ of the fluid?


aEnergy per unit mass


bEnergy per unit weight


cForce per unit mass


dNone of these



If the molar heat capacities (Cp or Cv) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will___________________?


aIncrease


bDecrease


c Remain unaltered


dIncrease or decrease; depends on the particular reaction


View Answer Remain unaltered

For laminar flow through a closed conduit____________________?


aVmax = 2Vav


bVmax = Vav


cVmax = 1.5Vav


dVmax = 0.5Vav


View Answer Vmax = 2Vav

After throttling, gas temperature___________________?


aDecreases


b Increases


cRemain same


dMay increase or decrease; depends on the nature of the gas


View Answer Decreases

One dimensional fluid flow implies the ________________________?


aFlow in straight lines only


bUniform flow


cSteady uniform flow


dFlow in which transverse components are zero



Co-efficient of performance for a reversed Carnot cycle working between temperatures T1 and T2 (T1 > T2) is ___________________?


aT2/(T1 – T2)


bT1/(T1 – T2)


c(T1 – T2)/T1


d(T1 – T2)/T2


View Answer T2/(T1 – T2)

Turbine impeller____________________?


aProduces only radial current


bProduces only tangential current


cIs effective over wide range of viscosities


dDoes not produce tangential current



Work done is a____________________?


aProperty of the system


bPath function


cPoint function


dState description of a system


View Answer Path function

For a constant pressure reversible process, the enthalpy change (ΔH) of the system is___________________?


aCv.dT


bCp.dT


c∫ Cp.dT


d ∫ Cv.dT


View Answer ∫ Cp.dT

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