Chemical Engineering MCQs

Page No. 81

Electronic structure of a material is generally studied by__________________?


aMetallurgical microscope


bElectron diffraction


cSpectroscopic techniques


dX-ray



Dip stick used for measuring the level of petro fuels (e.g. petrol, diesel, fuel oil etc.) in the storage tank is usually made of_________________?


aBrass


bCopper


cHigh carbon steel


dAluminium


View Answer Brass

Gunmetal and bronze are not corroded by the action of__________________?


aWet chlorine


bSynthetic detergent solution


cHydrochloric acid (10%)


dNitric acid (< 25%)



Hydrochloric acid is _______________ corrosive to common metals?


aLeast


bNot


cMildly


dHighly


View Answer Highly

Invar used in thermocouples is an alloy of nickel and________________?


aIron


bCopper


cChromium


dLead


View Answer Iron

Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making________________?


aShafts


bFlanges


cGears


dShear blades


View Answer Flanges

Softness of silver can be converted into hardness by alloying it with small quantity of_________________?


aCopper & nickel


bZinc


cAluminium


dTin


View Answer Copper & nickel

Chemical potential of ith component of a system is given by________________?


aμi = (∂F/∂ni)T, P, ni


bμi = (∂A/∂ni)T, P, ni


cμi = (∂F/∂ni)T, P


d μi = (∂A/∂ni)T, P



A material capable of undergoing large permanent deformation, when subjected to compression is termed as___________________?


aMalleable


bDuctile


cBrittle


dNone of these


View Answer Malleable

Efficiency of a Carnot engine working between temperatures T1 and T2 (T1 < T) is ________________?


a(T2 – T1)/T2


b(T2 – T1)/T1


c(T1 – T2)/T2


d(T1 – T2)/T1


View Answer (T2 – T1)/T2

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