For boiling pi water in the core
To use liquid sodium metal as coolant
To use intermediate coolant
To prevent the water coolant from boiling in the core
D. To prevent the water coolant from boiling in the core
Fast moving
Slow moving
Critical neutrons
Neutrons at rest
Slow down the speed of fast moving neutrons
Control the reaction
Reduce the temperature
Extracts heat from nuclear reaction
Slowing down fast neutrons so that Uz fission continues by slow motion neutrons
Accelerating fast neutrons
Absorbing all neutrons
Using moderator
More
Less
Same
Zero
Natural uranium
Molten lead
Any form of uranium
Thorium
X-rays
Infrared rays
Neutrons and gamma rays
Electrons
To produce heat for thermoelectric power
To produce fissionable material
To propel ships, submarines, aircrafts
All of these
Coolant itself
Ferrite rod
Graphite rod
Liquid sodium metal
MeV
Curie
Farads
MW
Carbon
Lead
Concrete
All of these
Increases
Decreases
Have no effect on
None of these
Protons and neutrons in an atom
Protons and electrons in an atom
Neutrons and electrons in an atom
Protons and neutrons in a nucleus
Enriched uranium
Plutonium
Thorium
U
Increased production of neutrons
Complete absorption of neutrons
Controlled production of neutrons
Decreased leakage of neutrons
Artificially
When U238 is irradiated by neutrons
By fission of Th232
As basic raw material
99.282% U₂₃₈, 0.712% U₂₃₅, 0.006% U₂₃₄
99.282% U₂₃₅, 0.712% U₂₃₈, 0.06%' U₂₃₄
99.282% U₂₃₄, 0.712% U₂₃₈, 0.006% U₂₃₅
99.282% U₂₃₅, 0.712% U₂₃₄, 0.006% U₂₃₈
U₂₃₃ and Pu₂₂₉
U₂₃₁ and Pu₂₃₃
U₂₃₅ and Pu₂₃₅
U₂₃₈ and Pu₂₃₉
Same
Lower
Higher
Unity
Rapidly increasing leading to the point of explosion
Decreasing from the specified value
Reduced to zero
Constant
Light weight atoms
Heavy weight atoms
Critical atoms
Zero weight atoms
Control temperature
Control radioactive pollution
Control absorption of neutron
Control fuel consumption
Electron volt
Electron ampere
Curie
MV
Graphite, CO2
Graphite, air
Heavy water, CO2
Lead, H2
Atomic power
Energy
Voltage
Radio activity
It produces more fuel than it consumes.
It requires highly enriched fuel.
It requires liquid sodium metal as moderator.
All of the above
Unity
More than unity
Less than unity
Zero
Any form of uranium
Natural uranium
Enriched uranium
Plutonium
Alpha particles
Beta particles
Thermal neutrons
Fast neutrons and gamma rays
Belt conveyor
Bucket conveyor
Fork lift truck
Overhead crane
U₂₃₄
U₂₃₅
U₂₃₈
All of these