Chemical Engineering MCQs

Page No. 772

Nickel is a _________________ material?


aFerromagnetic


bSemi-conductor


cParamagnetic


dFerroelectric


View Answer Ferromagnetic

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


aResilience


bToughness


cDuctility


dImpact strength


View Answer Resilience

High endurance limit of carburised machine parts is because of the fact that carburisation __________________?


aSuppresses any stress concentration produced in the parts


bEnhances the yield point of the material


cIntroduces a compressive layer on the surface


dProduces a better surface finish



Function of fusible plug in a boiler is to ______________________?


aDrain out water and sludge from the boiler during repair


bPut off fire in the furnace when water level in the boiler falls to unsafe limit


cGuard the boiler in case of abnormal rise in steam pressure


dAll A, B. & C



Optical activity is a/an _______________________ property ?


aAdditive


bConstitutive


cBoth A. & B.


dNeither A. nor B.


View Answer Both A. & B.

“Encyclopaedia of Chemical Technology” has been ____________________?


aAuthored by Kirk Othmer


bEdited by Perry and Chilton


cEdited by Kirk Othmer


dAuthored by Perry and Chilton


View Answer Edited by Kirk Othmer

Otto cycle used in spark ignition petrol engines is also known as the constant ________________ cycle?


aVolume


bPressure


cHeat


dNone of these


View Answer Volume

_________________ is not used as a material of construction in thermocouples ?


aAlumel


bRhodium


cConstantan


dDuralumin


View Answer Duralumin

A metal having a Poisson’s ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is________________?


a-0.8


b0.8


c+0.08


d-0.24


View Answer -0.24

For dynamic strain measurement, the Wheatstone bridge used is of ______________ type ?


aVoltage sensitive null


bVoltage sensitive deflected


cCurrent sensitive deflected


dNone of these



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