Chemical Engineering MCQs

Page No. 816

A spring material should have low__________________?


aElastic limit


bDeflection value


cFatigue resistance


dNone of these


View Answer None of these

A common disinfectant used in village wells for disinfection of water is __________________?


aFree chlorine


bBromine


cIodine


dPotassium permanganate



Which of the following is not an ore of copper ?


aCryolite


bAzurite


cChalcopyrite


dMalachite


View Answer Cryolite

Dislocations are _______________ defects?


aPoint


bLine


cVolume


dNone of these


View Answer Line

M10 index of coke indicates its____________________?


aCompressive strength


bHardness


cAbrasion resistance


dImpact strength


View Answer Abrasion resistance

Addition of _____________________ to steel does not impart hardness?


aNickel


bCopper


cChromium


dSilicon


View Answer Copper

Which of the following is an acidic constituent of B.F. slag ?


aSiO2


bFeO


cMgO


dCaO


View Answer SiO2

Larger length & diameter water pipes are made by____________________?


aElectrical resistance welding


bDie casting


cSemi-centrifugal casting


dContinuous casting



Eutectoid composition of carbon steel at room temperature is___________________?


aCementite


bPearlite


cMartensite


dFerrite


View Answer Pearlite

The refrigerant freon-12 is chemically_______________________?


aCCl2F2


bCCl3F


cCClF3


dCCl4F


View Answer CCl2F2

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