Mechanical Engineering MCQs

Page No. 161

Plutonium is produced________________?


aas basic raw material


bby neutron irradiation of Uz


cby neutron irradiation of throium


dartificially



Natural uranium is made up of__________________?


a99.282% U238, 0.712% U235, 0.006% U234


b99.282% U235, 0.712% U238, 0.06%’ U234


c99.282% U234, 0.712% U238, 0.006% U235


d99.282% U235, 0.712% U234, 0.006% U238



Enriched uranium may contain fissionable contents of the order of__________________?


a1-99%


b1-25%


c1-50%


d1-75%


View Answer 1-99%

A reactor capable of converting a ferrite material into fissile isotopes is called____________________?


aregenerative reactor


bfast breeder reactor


cbreeder reactor


dboiling water reactor


View Answer regenerative reactor

Electron-volt is the unit of________________?


aatomic power


benergy


cvoltage


dradio activity


View Answer energy

The risk of radioactive hazard is greatest in the turbine with following reactor___________________?


apressurised water


bboiling water


cgas cooled


dliquid metal cooled


View Answer boiling water

Hydrogen is preferred as better coolant in comparison to C02 because former_____________________?


ais lighter


bis inert


chas high specific heat


dis a good conductor



U235 will undergo fission by__________________?


ahigh energy (fast) neutrons alone


blow energy (slow) neutrons alone


ceither fast or slow neutrons


dmedium energy neutrons



The first unclear power plant in India is located at____________________?


aKota


bKalapakkam


cTarapur


dBaraeilly


View Answer Tarapur

Boiling water reactor uses the following as moderator, coolant and working fluid________________?


aordinary fluid


bheavy water


cmolten lead


dhydrogen gas


View Answer ordinary fluid

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