Nuclear Power Engineering - Chemical Engineering Questions and Answers

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Biological shield is provided in a nuclear power reactor to protect the __________ from radiation damage.

fuel elements

operating personnels

walls of the reactor

none of these

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The atomic mass of an element is fractional, because

of uncertainty principle.

it may have isobars.

it contains neutrons.

it may have isotopes.

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A heterogeneous reactor is the one, in which the moderator and the

coolant are different materials.

coolant are present in different phases (e.g., heavy water and graphite).

fuel are present in different phases (e.g. uranium and heavy water).

none of these.

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Radioactivity of an isotope is expressed in

barn

MeV

Curie

Ergs

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Extraction of uranium from its ore is done by __________ method.

chemical

pyrometallurgical

physical beneficiation

electrometallurgical

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75% of a radioactive element decays in 6 hours. Its half life period is __________ hours.

3/4

1/6

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Nuclear power plant is not located at

Talcher (Orissa)

Rawatbhata (Rajasthan)

Kalpakkam (Tamilnadu)

Kaiga (Karnataka)

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Heavy water is used as a moderator in a

pressurised water reactor (PWR).

boiling water reactor (BWR).

Candu reactor.

molten sodium cooled reactor.

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Which of the following is a fuel for a fusion reactor (thermonuclear reactor) ?

Deuterium and tritium

U-233

Thorium

Heavy water