Chemical Engineering MCQs

Page No. 132

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


aDuctility

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bHardness

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cMalleability

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dNone of these

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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

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b(atm)Δx, when Δx is positive

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cDimensionless, when Δx = 0

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d(atm)Δx2, when Δx > 0

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


aZinc

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bMercury

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cLead

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dTin

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View Answer Mercury

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


aCeramic fibre blanket

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bGlass wool and 85% magnesia

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cVermiculite

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dSlag wool

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Steel pipes are normally manufactured by ______________ process?


aExtrusion

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bCold working

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cForging

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dElectroforming

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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

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bDecreases exponentially

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cIncreases

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d Remain constant

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View Answer Increases

Duriron is__________________?


aAcid resistant, brittle and very hard

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bHigh silicon iron

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

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dAll A., B. and C.

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View Answer All A., B. and C.

The material of construction of bearings is__________________?


aCast iron

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bBabbitt metal

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cPig iron

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dSteel

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View Answer Babbitt metal

Very high sulphur in pig iron makes ___________________?


aIts casting unsound

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bIts hard and machinable

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cIts brittle and malleable

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dAll A., B. & C.

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View Answer Its casting unsound

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


aCV

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b Enthalpy change

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cFree energy change

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dNone of these

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View Answer None of these

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