Nuclear Power Engineering MCQs

Question 1

In a homogeneous nuclear reactor, the __________ are mixed together.

Accepted Answer

Fuel & moderator

Answer

Fuel & coolant

Answer

Coolant & moderator

Answer

None of these

Question 2

Which of the following types of nuclear reactors is most prone to radioactive hazards?

Accepted Answer

Boiling water reactor

Answer

Pressurised water reactor

Answer

Gas cooled reactor

Answer

Molten sodium cooled reactor

Question 3

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

Accepted Answer

931

Answer

9.31

Answer

93.1

Answer

9310

Question 4

Nucleus of 92 U 235 contains __________ protons.

Accepted Answer

92

Answer

235

Answer

143

Answer

325

Question 5

Uranium ore is currently mined & concentrated at

Accepted Answer

Jadugoda

Answer

Ghatsila

Answer

Khetri

Answer

Alwaye

Question 6

Thorium-232 is converted into uranium-233 in a/an __________ nuclear reactor.

Accepted Answer

Fast breeder

Answer

Thermal

Answer

Heavy water moderated

Answer

Enriched uranium

Question 7

Secondary cooling circuit is a must in molten sodium cooled fast breeder reactor for

Accepted Answer

Avoiding the mixing of water with radioactive sodium, as it may cause explosion

Answer

Achieving high degree of superheat in the steam

Answer

Faster heat removal rate from the core

Answer

Lowering the coolant circulation pressure

Question 8

The decrease in the atomic number is not observed in case of

Accepted Answer

β-emission

Answer

Electron capture

Answer

α-emission

Answer

Positron emission

Question 9

Which one is the radioactive isotope of hydrogen?

Accepted Answer

Tritium

Answer

Deuterium

Answer

Ortho-hydrogen

Answer

None of these