Q.1
In the breeder reactors the generation of new fissionable atom is
Q.2
The nuclear radiators produced in a reactor which must be shielded are
Q.3
A moderator generally used in nuclear power plants is
Q.4
The primary fuel used in nuclear power plants is
Q.5
The secondary fuel used in nuclear power plants is
Q.6
Boiling water reactor employs
Q.7
Ideally the neutron flux in reactor should be
Q.8
Breeder reactors employ liquid metal coolant because it
Q.9
A pressurized water reactor employs pressurizes for the following application
Q.10
Moderator in nuclear plants is used to
Q.11
Reflector in nuclear plants is used to
Q.12
The presence of reflector in nuclear power plants results in
Q.13
Half life of a radioactive isotope corresponds to the time required for half of the following to decay
Q.14
When a reactor becomes critical, then the production of neutrons is
Q.15
The energy released during the fission of one atom of Uranium 235 in million electron volts is about
Q.16
Plutonium is produced
Q.17
In triggering fission, the following types of neutrons are desirable
Q.18
The following present serious difficulty in designing reactor shield
Q.19
Uranium has isotopes
Q.20
The most commonly used moderator in nuclear plants is
Q.21
Breeder reactor has a conversion ratio of
Q.22
Hydrogen is preferred as better coolant in comparison to CO₂ because former
Q.23
In nuclear fission each neutron that causes fission releases
Q.24
The function of control rods in nuclear plants is to
  • control temperature
  • control radioactive pollution
  • control absorption of neutron
  • control fuel consumption
Q.25
Reactors designed for propulsion applications are designed for
  • enriched uranium
  • natural uranium
  • pure uranium
  • any type of uranium
Q.26
The value of the reheat factor is of the order of
  • 0.8 to 1.0
  • 1.0 to 1.05
  • 1.1 to 1.5
  • above 1.5
Q.27
Binary vapor cycles are used to
  • Increase the performance of the condenser
  • Increase the efficiency of the plant
  • Increase efficiency of the turbine
  • None of the above
Q.28
Parson's turbine is
  • pressure compounded steam turbine
  • simple single wheel, impulse steam turbine
  • simple single wheel reaction steam turbine
  • multi wheel reaction steam turbine
Q.29
Breeder reactors employ liquid metal coolant because it
  • transfers heat from core at a fast rate
  • produces maximum steam
  • acts as good moderator
  • increases rate of reaction in core
Q.30
Boiling water reactor employs
  • single circuit system
  • multi pass system
  • direct cycle of coolant system
  • double circuit system of coolant cycle
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