Chemical Engineering MCQs

Page No. 100

Mollier chart is a _____________ plot?


aPressure vs. enthalpy

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bPressure vs. volume

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cEnthalpy vs. entropy

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d Temperature vs. entropy

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View Answer Enthalpy vs. entropy

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


aSilicides

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bOxides

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cCarbides

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dNitrides

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View Answer Nitrides

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


aMonel

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bKarbate

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cCast iron

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dNone of these

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View Answer Monel

Addition of tungsten to steel imparts___________________?


aMagnetic properties

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bCutting hardness

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cCorrosion resistance

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dDuctility

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View Answer Cutting hardness

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


aSilicon

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bNickel

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cChrome

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dHigh speed

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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

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b Arithmetic

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cGeometric

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d Harmonic

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View Answer Geometric

Phenol is not shipped in________________?


aNickel lined steel tank cars

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bGalvanised or tin lined drums

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cBoxed glass carboys

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dCast iron containers

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View Answer Cast iron containers

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


aIsothermal

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bAdiabatic

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c Isentropic

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dNone of these

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View Answer Isothermal

Silicon percentage in acid resistant cast iron is about________________?


a4

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b8

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c14

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d20

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View Answer 14

What happens in a reversible adiabatic compression ?


aHeating occurs

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b Cooling occurs

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cPressure is constant

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d Temperature is constant

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View Answer Heating occurs

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