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WorksheetsNuclear Reactors
Total questions: 10
Worksheet time: 18mins
In a pressurized water reactor( PWR) _____________
Light or heavy water is used as both coolant and moderator.
The coolant water boils in the reactor core.
Water is used at high pressure
Both (a) and (c).
The reason for providing the thermal shielding is to _________________
Absorb the fast neutrons
Protect the operating personnel from exposure to radiations
Prevent the reactor wall from getting heated
All of the above
Reflectors of a nuclear reactors are made of........
Boron
Cast iron
Beryllium
Steel
The nuclear energy is measured as........
MeV
MW
Curie
None of the above
The function of the moderator in a nuclear is to........
Stop chain reaction
Absorb neutrons
Reduce the speed of neutrons
Reduce temperature
In a nuclear reactor function of reflector is to......
Reduce the speed of the neutrons
Stop the chain reaction
Reflect the escaping neutrons back into the core
None of the above
Which is the most commonly used moderator?
Graphite
Sodium
Deuterium
Heavy water
U238 will undergo fission by
Slow neutrons alone
fast neutrons alone
Either fast or slow neutrons
medium energy neutrons
The risk of radioactive hazard is greatest in the turbine with following reactor
pressurized water
boiling water
gas cooled
liquid metal cooled
The function of control rods is nuclear plants is to
control temperature
control radioactive pollution
control absorption of neutron
control fuel consumption
