__________ moderator is used in a fast breeder reactor.
__________ moderator is used in a fast breeder reactor.
A radioactive isotope undergoes decay with respect to time following __________ law.
A radioactive isotope undergoes decay with respect to time following __________ law.
Specific gravity of uranium and plutonium is about
Specific gravity of uranium and plutonium is about
In a nuclear explosion, the energy is released primarily in the form of __________ energy.
In a nuclear explosion, the energy is released primarily in the form of __________ energy.
The first underground nuclear test was conducted by India at
The first underground nuclear test was conducted by India at
The largest stable nucleus is
The largest stable nucleus is
Tarapur atomic power station
Tarapur atomic power station
The second underground nuclear test was conducted by India at
The second underground nuclear test was conducted by India at
The main ore of uranium is
The main ore of uranium is
Both tritium and deuterium have the same number of
Both tritium and deuterium have the same number of
The new nucleus formed after β-decay of a radioactive element has
The new nucleus formed after β-decay of a radioactive element has
Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand) is
Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand) is
The main ore of thorium is
The main ore of thorium is
Coolant present in the primary circuit of a pressurised water reactor is high pressure
Coolant present in the primary circuit of a pressurised water reactor is high pressure
Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of __________ percent of U-235 (i.e. fissile material).
Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of __________ percent of U-235 (i.e. fissile material).
The ratio of atomic radius to its nuclear radius is about
The ratio of atomic radius to its nuclear radius is about
Unit of radioactivity is
Unit of radioactivity is
Which of the following isotopes is not present in natural uranium?
Which of the following isotopes is not present in natural uranium?
Thorium metal
Thorium metal
A fast breeder reactor employs
A fast breeder reactor employs
Mass of a positron is same as that of a/an
Mass of a positron is same as that of a/an
Critical mass is the minimum mass of nuclear fissile material required for the
Critical mass is the minimum mass of nuclear fissile material required for the
An ideal coolant for a nuclear reactor should
An ideal coolant for a nuclear reactor should
Pick out the wrong statement.
Pick out the wrong statement.
The number of neutrons in the nucleus of Uranium⁻²33 (92U233) is
The number of neutrons in the nucleus of Uranium⁻²33 (92U233) is
Fast breeder Test Reactor (FBTR) is located at
Fast breeder Test Reactor (FBTR) is located at
Which of the following is not a good moderating material?
Which of the following is not a good moderating material?
Thorium can be converted into U-233 in a __________ reactor.
Thorium can be converted into U-233 in a __________ reactor.
Critical energy should be __________ the neutron binding energy of the atom in order to initiate a nuclear fission.
Critical energy should be __________ the neutron binding energy of the atom in order to initiate a nuclear fission.
The mass number of an element is not changed, when it emits __________ radiations.
The mass number of an element is not changed, when it emits __________ radiations.
Pick out the wrong statement.
Pick out the wrong statement.
The atomic number of a radioactive element is not changed, when it emits __________ rays.
The atomic number of a radioactive element is not changed, when it emits __________ rays.
Thermal nuclear reactors using enriched uranium as fuel contains a maximum of __________ percent fissile material i.e. U-235.
Thermal nuclear reactors using enriched uranium as fuel contains a maximum of __________ percent fissile material i.e. U-235.
In β-decay of radioactive material, the ratio of neutron to proton
In β-decay of radioactive material, the ratio of neutron to proton
Which is not a fissile nuclear material?
Which is not a fissile nuclear material?
Solar energy results from __________ reaction.
Solar energy results from __________ reaction.
__________ nuclear reactor does not require a heat exchanger to supply steam to power turbine.
__________ nuclear reactor does not require a heat exchanger to supply steam to power turbine.
Uranium percentage in monazite sand is about
Uranium percentage in monazite sand is about
Which of the following is the best nuclear fuel?
Which of the following is the best nuclear fuel?
Nuclear power reactor located at Tarapur is of __________ type.
Nuclear power reactor located at Tarapur is of __________ type.
Quantity of fissionable material (i.e. U-235) in natural uranium is __________ percent.
Quantity of fissionable material (i.e. U-235) in natural uranium is __________ percent.
