Chemical Engineering MCQs

Page No. 112

Ability of a material to ______________ is indicated by its damping capacity?


aWithstand compression


bAbsorb vibration


cAbsorb shock


dNone of these


View Answer Absorb vibration

A refrigerator may be termed as a____________________?


aHeat pump


bHeat engine


cCarnot engine


dNone of these


View Answer Heat pump

Chlorination of benzene is done to produce benzene hexachloride (a pesticide) in a photochemical reactor lined with_____________________?


aKarbate


bLead or glass


cFireclay bricks


dPVC


View Answer Lead or glass

The material used in the filament of electric bulbs is_________________?


aNichrome


bTungsten


cConstantan


dGerman silver


View Answer Tungsten

When liquid and vapour phases of one component system are in equilibrium (at a given temperature and pressure), the molar free energy is__________________?


aMore in vapour phase


b More in liquid phase


cSame in both the phases


d Replaced by chemical potential which is more in vapour phase



With increase in compression ratio, the efficiency of the otto engine________________?


a Increases


bDecreases


cRemain constant


d Increases linearly


View Answer Increases

Constituents of stellite are__________________?


aZinc, copper and nickel


bCobalt, chromium and tungsten


cZinc, aluminium and nickel


dNickel, cobalt and vanadium



Entropy of a substance remains constant during a/an ____________ change?


aReversible isothermal


bIrreversible isothermal


cReversible adiabatic


dNone of these


View Answer Reversible adiabatic

The phenomenon in which slow extension of material takes place with the time at constant load is called________________?


aPlasticity


bCreep


cElasticity


dDuctility


View Answer Creep

The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability ?


aLead


bCopper


cAluminium


dWrought iron


View Answer Lead

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