In natural uranium, the constituents of three naturally occurring isotopes are U₂₃₄ = 99.282%, U₂₃₅ = 0.006% and U₂₃₈ = 0.712% U₂₃₄ = 0.006%, U₂₃₅ = 99.282% and U₂₃₈ = 0.712% U₂₃₄ = 0.712%, U₂₃₅ = 0.006% and U₂₃₈ = 99.282% U₂₃₄ = 0.006%, U₂₃₅ = 0.712% and U₂₃₈ = 99.282% TRUE ANSWER : ? YOUR ANSWER : ?
The total energy released in fission of U is 10 MeV 199 MeV 168 MeV 5 MeV TRUE ANSWER : ? YOUR ANSWER : ?
The secondary fuel used in nuclear power plants is U₂₃₃ and Pu₂₃₈ U₂₃₃ and Pu₂₃₉ U₂₃₅ and Pu₂₃₈ U₂₃₅ and Th₂₃₂ TRUE ANSWER : ? YOUR ANSWER : ?
In nuclear fission each neutron that causes fission releases At least one new neutron One new neutron No new neutron More than one new neutron TRUE ANSWER : ? YOUR ANSWER : ?
Reactors for propulsion applications use Molten lead Thorium Natural uranium Any form of uranium TRUE ANSWER : ? YOUR ANSWER : ?
The coolant used in boiling water reactor is Mixture of water and steam Liquid metal Pressurised water CO2 TRUE ANSWER : ? YOUR ANSWER : ?
The control rods in the control system of nuclear reactors are used to All of these Control temperature Control fuel consumption Absorb excess neutrons TRUE ANSWER : ? YOUR ANSWER : ?
Moderator in nuclear plants is used to Control the reaction Extract heat from nuclear reaction Cause collision with the fast moving neutrons to reduce their speed Reduce temperature TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following are ferrite materials? U₂₃₈ and Pu₂₃₉ U U₂₃₈ and Th₂₃₉ U₂₃₃ and Pu₂₃₉ TRUE ANSWER : ? YOUR ANSWER : ?
A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atoms is More Less There is no such criterion Same TRUE ANSWER : ? YOUR ANSWER : ?