Nuclear Power Engineering - Chemical Engineering Questions and Answers

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Molten sodium (as a coolant in fast breeder reactor)

can't attain high temperature at normal pressure.

is not at all corrosive, even at a higher temperature.

is highly radioactive at elevated temperatures and can cause explosion, when it comes in contact with air or water.

none of these

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Final product of uranium extraction plant at Jadugoda (Bihar) is

uranium

uranium oxide

uranium carbide

magnesium diuranate

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Which one is the radioactive isotope of hydrogen ?

Deuterium

Ortho-hydrogen

Tritium

None of these

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A homogeneous reactor is the one, in which the

fissile atoms are evenly distributed throughout the mass of nuclear reactor.

same substance (e.g. heavy water) is used as moderator & coolant.

the fuel and the moderator is mixed to form a homogeneous material.

all (a), (b) and (c).

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Hydrogen has __________ isotopes.

one

two

three

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MeV is the unit of

radioactivity

energy

potential difference

none of these

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Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around __________ m/sec.

2200

3 x 10¹¹

9 x 10²¹

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Energy equivlant to one atomic mass unit (amu) is __________ MeV.

9.31

93.1

931

9310

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"Critical mass" is the minimum mass of nuclear fissile material required for the

sustainment of chain reaction.

power generation on commercial scale.

economic power generation.

none of these.