Nuclear Power Engineering - Chemical Engineering Questions and Answers

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The half life period of a radiactive element is 100 days. After 400 days, one gm of the element will be reduced to __________ gm.

1/4

1/8

1/2

1/16

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Nucleus of tritium has __________ neutrons.

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Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand) is

0.1

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A fast breeder reactor

utilises fast neutrons for causing fission.

converts fertile material (e.g., U-238) into fissile material (Pu-239).

normally employs molten sodium as coolant.

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

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Commercial power generation from fusion reactor is not yet possible, because

it is difficult to control nuclear fusion reaction.

the fuel required (i.e., deuterium & tritium) is scarce.

it is difficult to initiate fusion reaction.

quantity of fuel required for initiating fusion reaction is prohibitively high.

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Candu reactor is a __________ nuclcear reactor.

natural uranium fuelled heavy water cooled & moderated

highly enriched uranium (85% U-235) fuelled

homogeneous

fast breeder

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Which of the following is a non-fissile material ?

Plutonium-239

Uranium-235

Uranium-233

Thorium-232

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Use of molten metal as a coolant in fast breeder reactor helps in

rapid heat transfer from the core.

accelerating the reaction rate in the core.

breeding neutrons.

accelerating the neutrons.

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What is the average life of a radioactive atom having a 'half life period' of T ?

1.44 T

0.144 T

14.4 T