A moderator, in nuclear power plants, is a medium introduced into the fuel mass in order to
A moderator, in nuclear power plants, is a medium introduced into the fuel mass in order to
The energy required to be applied to a radioactive nucleus for the emission of a neutron is
The energy required to be applied to a radioactive nucleus for the emission of a neutron is
A moderator generally used in nuclear power plants is
A moderator generally used in nuclear power plants is
Pressurized water reactor is designed
Pressurized water reactor is designed
In triggering fission, which types of neutrons are more effective?
In triggering fission, which types of neutrons are more effective?
The material most commonly used for shielding is
The material most commonly used for shielding is
Amongst the following, the fissionable materials are
Amongst the following, the fissionable materials are
Natural uranium is made up of
Natural uranium is made up of
A fission chain reaction in uranium can be developed by
A fission chain reaction in uranium can be developed by
Which of the following is the primary fuel?
Which of the following is the primary fuel?
The risk of radioactive hazard is greatest in the turbine with following reactor
The risk of radioactive hazard is greatest in the turbine with following reactor
The fast breeder reactor uses the following moderator
The fast breeder reactor uses the following moderator
Electron volt is the unit of
Electron volt is the unit of
Plutonium (Pu₂₃₉) is produced
Plutonium (Pu₂₃₉) is produced
Plutonium (Pu239) is produced
Plutonium (Pu239) is produced
Uranium has isotopes
Uranium has isotopes
Enriched uranium is required as a fuel in a nuclear reactor, if light water is used as moderator and coolant, because light water has
Enriched uranium is required as a fuel in a nuclear reactor, if light water is used as moderator and coolant, because light water has
Solid fuel for nuclear reactions may be fabricated into various small shapes such as
Solid fuel for nuclear reactions may be fabricated into various small shapes such as
The presence of reflector in nuclear power plants results in
The presence of reflector in nuclear power plants results in
Gas cooled reactor uses following materials as moderator, and coolant
Gas cooled reactor uses following materials as moderator, and coolant
Which of the following can be used as a coolant in nuclear plant?
Which of the following can be used as a coolant in nuclear plant?
The efficiency of a nuclear power plant in comparison to a conventional thermal power plant is
The efficiency of a nuclear power plant in comparison to a conventional thermal power plant is
Nuclear reactors are used
Nuclear reactors are used
The nuclear radiators produced in a reactor which must be shielded are
The nuclear radiators produced in a reactor which must be shielded are
The most commonly used moderator in nuclear plants is
The most commonly used moderator in nuclear plants is
In fast breeder reactors
In fast breeder reactors
Each fission of U₂₃₅ produces on the average _________ fast neutrons as a product of reaction.
Each fission of U₂₃₅ produces on the average _________ fast neutrons as a product of reaction.
Which is not identical for an atom and an isotope?
Which is not identical for an atom and an isotope?
The process by which a heavy nucleus is spitted into two light nuclei is known as
The process by which a heavy nucleus is spitted into two light nuclei is known as
In a fission process, maximum percentage of energy is released as
In a fission process, maximum percentage of energy is released as
The coolant used in boiling water reactor is
The coolant used in boiling water reactor is
A moderator, apart from its high neutron slowing power, and low non-productive neutron, should be
A moderator, apart from its high neutron slowing power, and low non-productive neutron, should be
U235 will undergo fission by
U235 will undergo fission by
Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal
Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal
The efficiency of a nuclear power plant in comparison to conventional and nuclear consideration is
The efficiency of a nuclear power plant in comparison to conventional and nuclear consideration is
In the breeder reactors the generation of new fissionable atom is
In the breeder reactors the generation of new fissionable atom is
The energy produced by a thermal reactor of same size as a breeder reactor is
The energy produced by a thermal reactor of same size as a breeder reactor is
A nuclear fission produces energy of following order in MeV
A nuclear fission produces energy of following order in MeV
The most practical fuel for a thermonuclear reactor, both from economical and nuclear consideration is
The most practical fuel for a thermonuclear reactor, both from economical and nuclear consideration is
A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atoms is
A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atoms is
The unit of radioactivity is
The unit of radioactivity is
Ideally the neutron flux in reactor should be
Ideally the neutron flux in reactor should be
In natural uranium, the constituents of three naturally occurring isotopes are
In natural uranium, the constituents of three naturally occurring isotopes are
Which of the following is more appropriate for a moderator? One which
Which of the following is more appropriate for a moderator? One which
In order to have constant chain reaction to produce a constant rate of heat output, the value of ratio of the number of neutrons in one generation to the number of neutrons in the immediately preceding generation must be
In order to have constant chain reaction to produce a constant rate of heat output, the value of ratio of the number of neutrons in one generation to the number of neutrons in the immediately preceding generation must be
When a reactor becomes critical, then the production of neutrons is
When a reactor becomes critical, then the production of neutrons is
A pressurized water reactor employs pressurizes for the following application
A pressurized water reactor employs pressurizes for the following application
Reflector in nuclear power plants _________ neutron leakage.
Reflector in nuclear power plants _________ neutron leakage.
One gram of uranium will produce energy equivalent to approximately
One gram of uranium will produce energy equivalent to approximately
U233 is produced
U233 is produced
Reactors for propulsion applications use
Reactors for propulsion applications use
Pick up the wrong statement fast breeder reactors
Pick up the wrong statement fast breeder reactors
A boiling water reactor uses following as fuel
A boiling water reactor uses following as fuel
U238 will undergo fission by
U238 will undergo fission by
Which of the following particles is the lightest?
Which of the following particles is the lightest?
Which of the following are ferrite materials?
Which of the following are ferrite materials?
U₂₃₃ is produced
U₂₃₃ is produced
A reactor capable of converting a ferrite material into fissile isotopes is called
A reactor capable of converting a ferrite material into fissile isotopes is called
Which of the following is the heaviest?
Which of the following is the heaviest?
Where reactor operation is designed with fast neutrons such as in reactors using highly enriched fuel, the moderator used is
Where reactor operation is designed with fast neutrons such as in reactors using highly enriched fuel, the moderator used is
Reactors for propulsion applications are designed for
Reactors for propulsion applications are designed for
Which of the following statement is correct regarding the features of a Breeder reactor?
Which of the following statement is correct regarding the features of a Breeder reactor?
Hydrogen is preferred as better coolant in comparison to CO₂ because former
Hydrogen is preferred as better coolant in comparison to CO₂ because former
Which of the following nuclear reactor does not need a heat exchanger for generation of steam?
Which of the following nuclear reactor does not need a heat exchanger for generation of steam?
Fast breeder reactor uses
Fast breeder reactor uses
The primary fuel used in nuclear power plants is
The primary fuel used in nuclear power plants is
Pick up the wrong statement
Pick up the wrong statement
Reflector in nuclear plants is used to
Reflector in nuclear plants is used to
Moderator in nuclear plants is used to
Moderator in nuclear plants is used to
Superheated steam is generated in following reactor
Superheated steam is generated in following reactor
Boiling water reactor employs
Boiling water reactor employs
Boiling water reactor uses the following as moderator, coolant and working fluid
Boiling water reactor uses the following as moderator, coolant and working fluid
Reactors designed for propulsion applications are designed for
Reactors designed for propulsion applications are designed for
Isotopes of same elements have
Isotopes of same elements have
A fast breeder reactor uses following as fuel
A fast breeder reactor uses following as fuel
In boiling water reactor, moderator is
In boiling water reactor, moderator is
Breeder reactor has a conversion ratio of
Breeder reactor has a conversion ratio of
Atomic number of an element in the periodic table represents the numbers of
Atomic number of an element in the periodic table represents the numbers of
The mass number of a substance represents the sum of total number of
The mass number of a substance represents the sum of total number of
Artificial radioactive isotopes find application in
Artificial radioactive isotopes find application in
The control rods in the control system of nuclear reactors are used to
The control rods in the control system of nuclear reactors are used to
A nuclear unit becoming critical means
A nuclear unit becoming critical means
In triggering fission, the following types of neutrons are desirable
In triggering fission, the following types of neutrons are desirable
The fuel needed, with reflector in nuclear power plant, in order to generate sufficient neutrons to sustain a chain reaction, would be
The fuel needed, with reflector in nuclear power plant, in order to generate sufficient neutrons to sustain a chain reaction, would be
The nuclear energy is measured as
The nuclear energy is measured as
A nuclear reactor is said to be critical when the neutron population in the reactor core is
A nuclear reactor is said to be critical when the neutron population in the reactor core is
Ferrite material is
Ferrite material is
Enriched uranium may contain fissionable contents of the order of
Enriched uranium may contain fissionable contents of the order of
A fast breeder reactor uses
A fast breeder reactor uses
A power plant giving least running cost of production of electrical power is
A power plant giving least running cost of production of electrical power is
A fission chain reaction in uranium can be developed
A fission chain reaction in uranium can be developed
The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is
The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is
In nuclear fission each neutron that causes fission releases
In nuclear fission each neutron that causes fission releases
The predominant isotope of the naturally occurring element is
The predominant isotope of the naturally occurring element is
Half life of a radioactive isotope corresponds to the time required for half of the following to decay
Half life of a radioactive isotope corresponds to the time required for half of the following to decay
The size of the reactor is said to be critical when
The size of the reactor is said to be critical when
The total energy released in fission of U is
The total energy released in fission of U is
Effective moderators are those materials which contain
Effective moderators are those materials which contain
The following present serious difficulty in designing reactor shield
The following present serious difficulty in designing reactor shield
Plutonium is produced
Plutonium is produced
The energy released during the fission of one atom of Uranium 235 in million electron volts is about
The energy released during the fission of one atom of Uranium 235 in million electron volts is about
Enriched uranium is one in which
Enriched uranium is one in which
In a thermal power plant, coal from the coal handling plant is moved to the boiler bunker through a
In a thermal power plant, coal from the coal handling plant is moved to the boiler bunker through a
The secondary fuel used in nuclear power plants is
The secondary fuel used in nuclear power plants is
The function of control rods in nuclear plants is to
The function of control rods in nuclear plants is to
The commonly used material for shielding is
The commonly used material for shielding is
In nuclear fission
In nuclear fission
For economical operation of a nuclear plant
For economical operation of a nuclear plant
Breeder reactors employ liquid metal coolant because it
Breeder reactors employ liquid metal coolant because it
Each fission of U₂₃₅ produces following number of fast neutrons per fission
Each fission of U₂₃₅ produces following number of fast neutrons per fission
A fast breeder reactor
A fast breeder reactor
The main interest of shielding in nuclear reactor is protection against
The main interest of shielding in nuclear reactor is protection against
