Related Questions

Enriched uranium is required as a fuel in a nuclear reactor, if light water is used as moderator and coolant, because light water has
A High neutron absorption cross-section
B Low moderating efficiency
C High neutron scatter cross-section
D Low neutron absorption cross-section
Heavy water is used as a moderator in a nuclear reactor. The function of the moderator is
A to control the energy released in the reactor
B to absorb neutrons and stop the chain reaction
C to cool the reactor
D to slow down the neutrons to thermal energy
A first order reaction is to be treated in a series of two mixed reactors. The total volume of the two reactors is minimum, when the reactors are
A Equal in size
B Of different sizes
C Of such size that the ratio of their volumes is
D None of these
__________ moderator is used in a fast breeder reactor.
A Heavy water
B Graphite
C No
D Beryllium
The fast breeder reactor uses the following moderator
A Demineralised water
B Carbon dioxide
C Heavy water
D No moderator is used
Pure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors.
A Beryllia
B Carborundum
C Corundum
D Thoria
A moderator __________ the neutrons.
A Slows down
B Absorbs
C Accelerates
D Reflects
ইরানের কোন পারমাণবিক প্লান্টকে প্রথম পারমাণবিক অস্ত্র উপযোগী Highly Enriched Uranium প্রস্তুতির জন্য সন্দেহ করা হয়?
A নাতাঞ্জ পারমাণবিক প্লান্ট
B ইসফাহান পারমাণবিক প্লান্ট
C আরাক পারমাণবিক প্লান্ট
D তেহরান পারমাণবিক প্লান্ট
Heavy water used in the nuclear reactors to slow down the speed of neutrons is
A Highly purified water
B A compound of oxygen and deuterium
C Water having dissolved salts of heavy metals
D None of these
Reactors designed for propulsion applications are designed for
A Natural uranium
B Enriched uranium
C Pure uranium
D Any type of uranium

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