Chemical Engineering MCQs

Page No. 100

Mollier chart is a _____________ plot?


aPressure vs. enthalpy


bPressure vs. volume


cEnthalpy vs. entropy


d Temperature vs. entropy


View Answer Enthalpy vs. entropy

Which of the following is not used as the ceramic material in „cermets‟?


aSilicides


bOxides


cCarbides


dNitrides


View Answer Nitrides

Brine (15% concentration) can be stored in a vessel made of____________________?


aMonel


bKarbate


cCast iron


dNone of these


View Answer Monel

Addition of tungsten to steel imparts___________________?


aMagnetic properties


bCutting hardness


cCorrosion resistance


dDuctility


View Answer Cutting hardness

_____________ steel is widely used for the manufacture of motor car crankshafts?


aSilicon


bNickel


cChrome


dHigh speed


View Answer Chrome

A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the _____________ mean of P1 and P2.(where, P1 and P2 are initial and final pressures respectively) ?


aLogarithmic


b Arithmetic


cGeometric


d Harmonic


View Answer Geometric

Phenol is not shipped in________________?


aNickel lined steel tank cars


bGalvanised or tin lined drums


cBoxed glass carboys


dCast iron containers


View Answer Cast iron containers

Maximum work that could be secured by expanding the gas over a given pressure range is the _____________ work?


aIsothermal


bAdiabatic


c Isentropic


dNone of these


View Answer Isothermal

Silicon percentage in acid resistant cast iron is about________________?


a4


b8


c14


d20


View Answer 14

What happens in a reversible adiabatic compression ?


aHeating occurs


b Cooling occurs


cPressure is constant


d Temperature is constant


View Answer Heating occurs

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