Chemical Engineering MCQs

Page No. 799

Faraday’s law of electrolysis is related to the____________________?


aCation speed


bAtomic number of the cation


cEquivalent mass of the electrolyte


dNone of these



Suitability of steel for its use in cable is judged by its strength in__________________?


aTension


bCompression


cTorsion


dShear


View Answer Tension

Change in volume of metals from absolute zero temperature to their melting points is___________________?


aAlmost same for all metals


bDifferent for different metals


cLess for low melting point metals


dLess for high melting point metals



Which of the following commonly used condenser tube materials has the lowest thermal conductivity ?


aAdmiralty brass


bStainless steel


cAluminium brass


dTitanium


View Answer Stainless steel

One ton of refrigeration is not equivalent to the heat removal rate of ____________________?


a200 BTU/minute


b50 kcal/minute


c50 kJ/sec


d3.5 KW


View Answer 50 kJ/sec

Gage pressure within a spherical droplet of a fluid is ‘p’. What will be gage pressure within a bubble of the same size & of the same fluid ?


ap


b2 p


c0.5 p


d0.25 p


View Answer 2 p

In chemical dehumidification of air___________________?


aBoth specific humidity & dry bulb temperature increases


bBoth specific humidity & dry bulb temperature decreases


cSpecific humidity decreases & dry bulb temperature increases


dSpecific humidity increases & dry bulb temperature decreases



Fire refining process is employed in case of___________________?


aTin


bCopper


cZinc


dAluminium


View Answer Copper

The two elements required to form substitutional solid solution should not have___________________?


aSame crystalline structure


bSame valency


cWidely differing electronegativity


dSame atomic sizes



The temperature at which ferromagnetic material can no longer be magnetized by the outside forces, is termed as the____________________?


aCritical point


bCurie temperature


cInversion temperature


dEutectic temperature


View Answer Curie temperature

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