Related Questions

Critical energy should be __________ the neutron binding energy of the atom in order to initiate a nuclear fission.
A less than
B equal to
C either more or less
D more than
A moderator, apart from its high neutron slowing power, and low non-productive neutron, should be
A Stable under nuclear radiation
B Corrosion resistant
C Good thermal conductor
D All of these
Which of the following gases has very high neutron capture cross-section, making it unsuitable as a coolant in nuclear reactor?
A N2
B He
C CO2
D H2
Reflector in nuclear power plants _________ neutron leakage.
A Increases
B Decreases
C Have no effect on
D None of these
A nuclear reactor is said to be critical when the neutron population in the reactor core is
A Rapidly increasing leading to the point of explosion
B Decreasing from the specified value
C Reduced to zero
D Constant
The sensing element in the control system of nuclear reactors measures the _________ of the neutron flux in the reactor.
A Temperature
B Volume
C Density
D None of these
__________ gas is normally not used as a coolant in a nuclear reactor, because of its high neutron capture cross-section.
A Nitrogen
B Hydrogen
C Helium
D Carbon dioxide
In nuclear fission
A The original elements change into completely different elements
B The electrons of the element change
C The molecules rearrange themselves to form other molecules
D None of the above
An element having large number of __________ is most easily subjected to nuclear fission.
A Protons
B Electrons
C Neutrons
D Nucleons
Which of the following accounts for the maximum energy release in the nuclear fission process?
A Kinetic energy of fission products
B Radioactive decay of fission products
C Instantaneous release of γ-rays
D Kinetic energy of neutrons

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