Chemical Engineering MCQs

Page No. 132

The most distinguished property of malleable cast iron is its high_________________?


aDuctility


bHardness


cMalleability


dNone of these


View Answer Ductility

Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants) ?


a(atm)Δx, when Δx is negative


b(atm)Δx, when Δx is positive


cDimensionless, when Δx = 0


d(atm)Δx2, when Δx > 0



A metallic alloy in which one of the constituent metal is _____________, is called an amalgam?


aZinc


bMercury


cLead


dTin


View Answer Mercury

Which of the following is the most widely used insulating material for steam carrying pipelines ?


aCeramic fibre blanket


bGlass wool and 85% magnesia


cVermiculite


dSlag wool



Steel pipes are normally manufactured by ______________ process?


aExtrusion


bCold working


cForging


dElectroforming


View Answer Extrusion

Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and temperature ____________ as its mole fraction increases?


aDecreases


bDecreases exponentially


cIncreases


d Remain constant


View Answer Increases

Duriron is__________________?


aAcid resistant, brittle and very hard


bHigh silicon iron


cProne to breakage due to thermal expansion because of its very high co-efficient of thermal expansion


dAll A., B. and C.


View Answer All A., B. and C.

The material of construction of bearings is__________________?


aCast iron


bBabbitt metal


cPig iron


dSteel


View Answer Babbitt metal

Very high sulphur in pig iron makes ___________________?


aIts casting unsound


bIts hard and machinable


cIts brittle and malleable


dAll A., B. & C.


View Answer Its casting unsound

(∂E/∂T)V is the mathematical expression for____________________?


aCV


b Enthalpy change


cFree energy change


dNone of these


View Answer None of these

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