Chemical Engineering MCQs

Page No. 165

In the reaction, represented by, 2SO2 + O2 ⇌ 2SO3; ΔH = – 42 kcal; the forward reaction will be favoured by____________________?


aLow temperature

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bHigh pressure

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cBoth A. and B

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dNeither A. nor B

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View Answer Both A. and B

Chemical potential is a/an_____________________?


aExtensive property

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bIntensive property

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cForce which drives the chemical system to equilibrium

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dBoth B. and C

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View Answer Both B. and C

_______________ functions are exemplified by heat and work ?


aPath

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bPoint

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cState

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dNone of these

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View Answer Path

Domestic refrigerator usually works on the _____________ refrigeration cycle?


aCarnot

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b Air

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cAbsorption

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dvapour-ejection

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View Answer Absorption

Boundary layer separation is characterised by one of the conditions given below, where ‘Re’ is the Reynolds number for the flow. Select the appropriate conditions ?


aRe <> 1, accelerating flow

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bRe << 1, decelerating flow

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cRe >>1, decelerating flow

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dNone of these

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The friction factor is___________________?


aAlways inversely proportional to the Reynolds number

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bNot dimensionless

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cNot dependent on the roughness of the pipe

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dNone of these

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View Answer None of these

Velocity of liquid hydrocarbon fuels in a pipeline cannot be measured by magnetic flowmeters, because their ______________ is very low/small?


aThermal conductivity

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bElectrical conductivity

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cSpecific gravity

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dElectrical resistivity

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High specific speed of a pump implies that, it is a/an _____________ pump?


aCentrifugal

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bMixed flow

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cAxial flow

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dNone of these

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View Answer Axial flow

The ratio of hydrodynamic boundary layer to thermal boundary layer thickness in case of liquid metals is__________________?


a< 1

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b1

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c> 1

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d2

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View Answer < 1

Sewage sludge is an example of the ______________ fluid?


aBingham plastic

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bNewtonian

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cPseudo plastic

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dDilatent

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View Answer Bingham plastic

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