Acts as good moderator
Produces maximum steam
Transfers heat from core at a fast rate
Breeds neutrons
C. Transfers heat from core at a fast rate
As basic raw material
By neutron irradiation of Uz
By neutron irradiation of thorium
Artificially
Higher cost of nuclear fuel
High initial cost
High heat rejection in condenser
Lower temperature and pressure conditions
Any form of uranium
Natural uranium
Enriched uranium
Plutonium
Stable under nuclear radiation
Corrosion resistant
Good thermal conductor
All of these
Percentage of U₂₃₅ has been artificially increased
Percentage of U has been artificially increased
Percentage of U₂₃₄ has been artificially increased
Extra energy is pumped from outside
1-99 %
1-25 %
1-50 %
1-75 %
To produce heat for thermoelectric power
To produce fissionable material
To propel ships, submarines, aircrafts
All of these
Uses graphite rods as moderator
Has powerful moderator
Has no moderator
Uses ferrite material as moderator
Lead or concrete
Lead and tin
Graphite or cadmium
Thick galvanised sheets
Natural uranium
Molten lead
Any form of uranium
Thorium
2.46
24.6
246
2460
Regenerative reactor
Fast breeder reactor
Breeder reactor
Boiling water reactor
Pressurised water
Boiling water
Gas cooled
Liquid metal cooled
Ordinary fluid
Heavy water
Molten lead
Hydrogen gas
Protons in the nucleus
Electrons in the nucleus
Neutrons in the nucleus
Electrons in the atom
The most fissionable material
The basic fuel for nuclear paints
Basic raw material for nuclear plants
The material which absorbs neutrons and undergoes spontaneous changes leading to the formation of fissionable material
Infinite
Zero
Exactly balanced by the loss of neutrons through leakage
Initiated
Natural uranium
Enriched uranium
Pure uranium
Any type of uranium
U₂₃₃ and Pu₂₂₉
U₂₃₁ and Pu₂₃₃
U₂₃₅ and Pu₂₃₅
U₂₃₈ and Pu₂₃₉
In a heterogeneous or solid fuel reactor, the fuel is mixed in a regular pattern within moderator.
Slow or thermal neutrons have energy of the order or 0.025 eV
Fast neutrons have energies above 1000 eV
Fast reactor uses moderator
X-rays
Infrared rays
Neutrons and gamma rays
Electrons
Boiling water
Gas cooled
Pressurised water
All of the above
Slow down the speed of fast moving neutrons
Control the reaction
Reduce the temperature
Extracts heat from nuclear reaction
High neutron absorption cross-section
Low moderating efficiency
High neutron scatter cross-section
Low neutron absorption cross-section
Power generation
Nucleonic devices
Nuclear fission
Medical field
Enriched uranium
Plutonium
Thorium
U₂₃₅
Artificially
When U238 is irradiated by neutrons
By fission of Th232
As basic raw material
Control temperature
Control radioactive pollution
Control absorption of neutron
Control fuel consumption
Greater than 1.0
Less than 1.0
Equal to zero
Equal to 1.0
Neutron
Proton
Atom
Electron