Q121
Open question75% of a radioactive element decays in 6 hours. Its half life period is __________ hours.
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Nuclear Power Engineering
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Q122
Open questionThe phenomenon of nuclear fission is opposite to that of
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Q123
Open questionThe number of neutrons accompanying the formation of 54Xe139 and 38Sr94 from the absorption of a slow neutron by 92U235 , followed by nuclear fission is
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Q124
Open questionWhich of the following is not, a fertile material?
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Q125
Open questionWhich of the following may not need a control rod?
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Q126
Open questionPick out the wrong statement.
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Q127
Open questionThermal shield is used in high powered nuclear reactors to
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Q128
Open questionWhich of the following undergoes fission reaction easily?
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Q129
Open questionH2 is a better coolant than CO2, due to its relatively
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Q130
Open questionOut of the following, nucleus of __________ atom contains the largest number of neutrons.
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Q131
Open questionThe sum of masses of two nuclei produced in nuclear fission compared to the mass of original nucleus is
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Q132
Open questionPick out the correct statement.
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Q133
Open questionHeavy water has maximum density at __________ °C.
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Q134
Open questionHow many atoms are present in one gm-atom of an element?
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Q135
Open questionA heterogeneous reactor is the one, in which the moderator and the
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Q136
Open questionWhich of the following is not an ore of uranium?
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Q137
Open questionWhich of the following may not need a moderator?
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Q138
Open questionWhich one is the radioactive isotope of hydrogen?
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Q139
Open questionArtificially produced radioactive isotopes are used for
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Q140
Open questionPick out the wrong statement.
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