Same
Lower
Higher
Unity
B. Lower
Same
Lower
Higher
Unity
Stable under nuclear radiation
Corrosion resistant
Good thermal conductor
All of these
To produce heat for thermoelectric power
To produce fissionable material
To propel ships, submarines, aircrafts
All of these
High energy (fast) neutrons alone
Low energy (slow) neutrons alone
Either fast or slow neutrons
Medium energy neutrons
Graphite
Heavy water
Concrete
Graphite and concrete
Fast
Slow
In bulk
Static
Lead or concrete
Lead and tin
Graphite or cadmium
Thick galvanised sheets
Regenerative reactor
Fast breeder reactor
Breeder reactor
Boiling water reactor
By increasing the contents of U₂₃₅
By slowing down fast neutrons so that U₂₃₅ fission continues by slow neutron
Both (A) and (B)
None of these
Gas cooled
Liquid metal cooled
Pressurised water
Boiling water
Boiling water
Gas cooled
Pressurised water
All of the above
Ordinary fluid
Heavy water
Molten lead
Hydrogen gas
More
Less
Same
Zero
20
200
2000
20,000
Nucleus
Electron
Proton
Meson
Steam power plant
Gas turbine power plant
Hydro electric power plant
Nuclear power plant
Light weight atoms
Heavy weight atoms
Critical atoms
Zero weight atoms
CO2
Pressurised water
Mixture of water and steam
Liquid metal
Same atomic number and different masses
Same chemical properties but different atomic numbers
Different masses and different atomic numbers
Different chemical properties and same atomic numbers
U₂₃₃ and Pu₂₂₉
U₂₃₁ and Pu₂₃₃
U₂₃₅ and Pu₂₃₅
U₂₃₈ and Pu₂₃₉
Neutron
Proton
Atom
Electron
Infinite
Zero
Exactly balanced by the loss of neutrons through leakage
Initiated
Any form of uranium
Natural uranium
Enriched uranium
Plutonium
Increased production of neutrons
Complete absorption of neutrons
Controlled production of neutrons
Decreased leakage of neutrons
Same
More
Less
There is no such criterion
Graphite, CO2
Graphite, air
Heavy water, CO2
Lead, H2
U₂₃₃ and Pu₂₃₉
U₂₃₅ and Th₂₃₂
U₂₃₅ and Pu₂₃₈
U₂₃₃ and Pu₂₃₈
U₂₃₅
U₂₃₈
Pu₂₃₃
Pu₂₃₉
Artificially
When U238 is irradiated by neutrons
By fission of Th232
As basic raw material
5 MeV
10 MeV
199 MeV
168 MeV