Chemical Engineering MCQs

Page No. 773

The property of material, by which a given amount of energy is absorbed by it, without plastic deformation, is called__________________?


aResilience

✓


bToughness

✖


cDuctility

✖


dImpact strength

✖


View Answer Resilience

More than 95% of _______________ is present in corundum ?


aSiO2

✖


bAl2O3

✓


cCaSiO2

✖


dMgO

✖


View Answer Al2O3

L.D. (Linz-Donawitz) converter is used in the production of____________________?


aCopper

✖


bSteel

✓


cZinc

✖


dAluminium

✖


View Answer Steel

Which of the following contributes maximum as main source of sulphur in the blast furnace charge ?


aSinter

✖


bCoke

✓


cIron ore

✖


dLimestone

✖


View Answer Coke

Constituents of stellite are ____________________?


aZinc, copper & nickel

✖


bCobalt, chromium & tungsten

✓


cZinc, aluminium & nickel

✖


dNickel, cobalt & vanadium

✖



Which of the following pairs is not correctly matched ?


aUranium – 233 : Fertile material

✓


bBinding energy : Mass defect

✖


cScattering: Absorption cross-section

✖


dNumber of nucleons : Mass number

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When dry bulb temperature & wet bulb temperature of moist air is the same, it means that the _________________?


aPartial pressure of water vapour is less than the total pressure

✖


bHumidity is < 100% & dew point temperature of air has not reached

✖


cDew point temperature of air has not reached & air is not saturated fully

✖


dAir is fully saturated

✓



Specific gravity of hot metal (pig iron) is ______________ times that of the blast furnace slag ?


a2

✖


b3

✓


c0.8

✖


d6

✖


View Answer 3

What happens, when SO2 is passed through a solution of H2S in water ?


aPrecipitation of sulphur takes place

✓


bH2SO3 is formed

✖


cOleum is formed

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dNone of these

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Identify the false statement?


aMartensitic steels are less susceptible to pitting corrosion than austenitic steels

✓


bPitting corrosion is usually very localised

✖


cHydrogen embrittlement is facilitated by tensile stress

✖


dStress corrosion cracking is facilitated by tensile stress

✖



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