Nuclear Power Engineering MCQs

Question 1

Pick out the wrong statement.

Accepted Answer

Deuterium atom has one proton and two neutrons in its nucleus

Answer

The disintegration rate of a radioactive substance can not be increased by heating it

Answer

Electrons have negligible mass and unit negative change

Answer

Cadmium is capable of absorbing neutrons

Question 2

Heavy water is used as a moderator in a

Accepted Answer

Candu reactor

Answer

Pressurised water reactor (PWR)

Answer

Boiling water reactor (BWR)

Answer

Molten sodium cooled reactor

Question 3

The decay product of tritium (a beta emitter) is

Accepted Answer

Helium

Answer

Lithium

Answer

Deuterium

Answer

Hydrogen

Question 4

Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher

Accepted Answer

All of the above

Answer

Melting point, hence can be subjected to higher temperature

Answer

Density hence core volume for a given power output would be smaller

Answer

Resistance to effects of irradiation

Question 5

Nuclear reactors are provided with shield to guard against the emission of mainly __________ rays.

Accepted Answer

Neutrons & gamma

Answer

X

Answer

α and β

Answer

Infrared

Question 6

Which of the following may be used to measure the rate of nuclear disintegration?

Accepted Answer

Geiger-Muller Counter

Answer

Cyclotron

Answer

Cold chamber

Answer

Mass spectrograph

Question 7

The phenomenon of radioactivity was discovered by

Accepted Answer

Bacquerrel

Answer

Madam Curie

Answer

Roentgen

Answer

J.J. Thomson

Question 8

Coolant used in a boiling water reactor is

Accepted Answer

A mixture of water & steam

Answer

Hydrogen gas

Answer

Water

Answer

Steam

Question 9

Which of the following may not need a moderator?

Accepted Answer

Fast breeder reactor

Answer

Candu reactor

Answer

Homogeneous reactor

Answer

Pressurised water reactor