Chemical Engineering MCQs

Page No. 810

Resistance of an electrical conductor is proportional to its (where, l = length and A = crosssectional area of the conductor)________________?


aA


bl


cA2


dBoth A. & B.


View Answer Both A. & B.

Which of the following has the highest value of refractive index ?


aBrine (sea water)


bDiamond


cDistilled water


dGlass


View Answer Diamond

The phenomenon occurring during explosion of a hydrogen bomb is___________________?


aNuclear fission


bNuclear fusion


cA combination of both nuclear fission & fusion


dNone of these



Energy of the sun arises mainly from __________________ reactions?


aFusion


bFission


cCombustion


dNone of these


View Answer Fusion

According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point is__________________?


a180°


b212°


c32°


d273°


View Answer 180°

Case hardening of a material is__________________?


aFollowed by tempering or carburising


bPreceded by its tempering


cDone to get a soft ductile interior with a very hard surface


dCarried out to get extreme hardness in its core



Milk is fat dispersed in water. It is an example of__________________?


aSuspension


bEmulsion


cGel


dSolution


View Answer Emulsion

Cemented carbide tools are not suitable for cutting___________________?


aAluminium


bBrass


cCast iron


dSteel


View Answer Aluminium

Annealing of white cast iron produces _____________________ iron?


aGrey


bNodular


cMalleable


dSpheroidal


View Answer Malleable

Direct conversion of thermal energy to electrical energy is facilitated by the____________________?


aFuel cells


bPhoto voltaic cell


cMagneto hydrodynamic generator


dNone of these



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