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


bHigh pressure


cBoth A. and B


dNeither A. nor B


View Answer Both A. and B

Chemical potential is a/an_____________________?


aExtensive property


bIntensive property


cForce which drives the chemical system to equilibrium


dBoth B. and C


View Answer Both B. and C

_______________ functions are exemplified by heat and work ?


aPath


bPoint


cState


dNone of these


View Answer Path

Domestic refrigerator usually works on the _____________ refrigeration cycle?


aCarnot


b Air


cAbsorption


dvapour-ejection


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


bRe << 1, decelerating flow


cRe >>1, decelerating flow


dNone of these



The friction factor is___________________?


aAlways inversely proportional to the Reynolds number


bNot dimensionless


cNot dependent on the roughness of the pipe


dNone of these


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


bElectrical conductivity


cSpecific gravity


dElectrical resistivity



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


aCentrifugal


bMixed flow


cAxial flow


dNone of these


View Answer Axial flow

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


a< 1


b1


c> 1


d2


View Answer < 1

Sewage sludge is an example of the ______________ fluid?


aBingham plastic


bNewtonian


cPseudo plastic


dDilatent


View Answer Bingham plastic

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