Nuclear Power Plants Mcqs

This set of Mechanical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “ Nuclear Power Plants ”. These questions are chosen from a collection of most authoritative and best reference books on Mechanical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Nuclear Power Plants comprehensively.

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Sciences MCQS

1.
Isotopes of same elements have___________________?

Same atomic number and different masses

Same chemical properties but different atomic numbers

Different masses and different atomic numbers

Different chemical properties and same atomic numbers

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2.
Amongst the following, the fissionable materials are________________?

U233 and Pu239

U233 and Pu233

U235 and Pu235

U238 and Pu239

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4.
Moderator in nuclear plants is used to__________________?

Reduce temperature

Extract heat from nuclear reaction

Control the reaction

Cause collision with the fast moving neutrons to reduce their speed

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5.
The most commonly used moderator in nuclear plants is___________________?

Heavy water

Concrete and bricks

Graphite and concrete

Deutrium

Graphite

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6.
The main interest of shielding in nuclear reactor is protection against_______________?

X-rays

Infra-red rays

A, P, and y rays

Neutrons and gamma rays

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8.
Enriched uranium is one in which__________________?

%age of U235 has been artificially in-creased

%age of U has been artificially increased

%age of U234 has been artificially in-creased

Extra energy is pumped from outside

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10.
The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is________________?

Same

Lower

Higher

Unity

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12.
The process by which a heavy nucleus is splitted into two light nuclei is known as_________________?

Splitting

Fission

Fusion

Disintegration

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13.
The fast breeder reactor uses the following moderator__________________?

Demineralised water

Carbon dioxide

Heavy water

Graphite

No moderator is used

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14.
The mass number of a substance represents the sum of total number of___________________?

Protons and neutrons in an atom

Protons and electrons in an atom

Neutrons and electrons in an atom

Protons and neutrons in a nucleus

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15.
A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atoms is_________________?

Same

More

Less

There is no such criterion

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