Nuclear Power Engineering Questions

• A moderator __________ the neutrons.
• The function of moderators in nuclear reactor is to
• The 92U238 emits an a-particle. The product is
• The ratio of atomic radius to its nuclear radius is about
• The time required for half of the __________ of a radioactive isotope to decay is called its half life.
• The number of neutrons accompanying the formation of 54Xe139 and 38Sr94 from the absorption of a slow neutron by 92U235 , followed by nuclear fission is
• Emission of β-particles during radioactive decay of a substance is from
• Pick out the wrong statement.
• Which of the following types of nuclear reactors is most prone to radioactive hazards?
• A fast breeder reactor employs
• Which of the following ores contains maximum percentage of uranium?
• __________ nuclear reactor does not require a heat exchanger to supply steam to power turbine.
• Thermal nuclear reactors using enriched uranium as fuel contains a maximum of __________ percent fissile material i.e. U-235.
• The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then
• Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.
• The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element?
• Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher
• __________ moderator is used in a fast breeder reactor.
• Nuclear fuel complex, Hyderabad is engaged in the job of
• A fertile material is the one, which can be