Chemical Engineering MCQs

Page No. 360

Fast breeder reactors are most usable in India, because of our largest _____________ deposits?


aThorium


bPlutonium


cUranium


dNone of these


View Answer Thorium

An electron has a mass that is approximately ____________ that of the proton?


a1836 (approximately)


b1/1836 (approximately)


c1


d



Which of the following reactors is operated at high neutron flux and low power level ?


aBreeder reactor


bResearch reactor


cHeterogeneous reactor


dLiquid metal (e.g., molten sodium) cooled reactor


View Answer Research reactor

Absorption/scattering cross-section of an element is expressed in “barn”, which is equivalent to___________________?


a10-24 cm2


b10-12 cm


c1 Angstrom


d10-24 cm


View Answer 10-24 cm2

Isotopes of an element have different_________________?


aMass number


bElectronic configuration


cNuclear charge


dChemical properties


View Answer Mass number

Thorium metal__________________?


aResembles steel in appearance


bIs less hard (in the range of silver)


cIs highly ductile


dAll A., B. and C.


View Answer All A., B. and C.

Which of the following isotopes is not present in natural uranium?


aU-238


bU-234


cU-235


dU-232


View Answer U-232

U-235 content in enriched uranium, that is normally used in power reactors (e.g., at Tarapur atomic power plant), is about _____________ percent?


a85


b50


c3


d97


View Answer 3

Thorium-232 is converted into uranium-233 in a/an ______________ nuclear reactor?


aThermal


bFast breeder


cHeavy water moderated


dEnriched uranium


View Answer Fast breeder

Nuclides having the same atomic numbers are termed as___________________?


aIsotopes


bIsomers


cIsotones


dIsobars


View Answer Isomers

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