Chemical Engineering MCQs

Page No. 157

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


aStraight line

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bSine curve

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cParabola

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dHyperbola

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View Answer Straight line

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


aEnergy per unit mass

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bEnergy per unit weight

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cForce per unit mass

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dNone of these

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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

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bDecrease

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c Remain unaltered

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dIncrease or decrease; depends on the particular reaction

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View Answer Remain unaltered

For laminar flow through a closed conduit____________________?


aVmax = 2Vav

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bVmax = Vav

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cVmax = 1.5Vav

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dVmax = 0.5Vav

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View Answer Vmax = 2Vav

After throttling, gas temperature___________________?


aDecreases

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b Increases

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cRemain same

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

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View Answer Decreases

One dimensional fluid flow implies the ________________________?


aFlow in straight lines only

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bUniform flow

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cSteady uniform flow

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dFlow in which transverse components are zero

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


aT2/(T1 – T2)

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bT1/(T1 – T2)

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c(T1 – T2)/T1

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d(T1 – T2)/T2

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View Answer T2/(T1 – T2)

Turbine impeller____________________?


aProduces only radial current

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bProduces only tangential current

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cIs effective over wide range of viscosities

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dDoes not produce tangential current

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Work done is a____________________?


aProperty of the system

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bPath function

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cPoint function

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dState description of a system

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View Answer Path function

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


aCv.dT

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bCp.dT

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c∫ Cp.dT

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d ∫ Cv.dT

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View Answer ∫ Cp.dT

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