Nuclear Power Engineering MCQs

Question 1

Nucleus of tritium has __________ neutrons.

Accepted Answer

2

Answer

1

Answer

3

Answer

5

Question 2

A radioactive isotope undergoes decay with respect to time following __________ law.

Accepted Answer

Exponential

Answer

Logarithmic

Answer

Linear

Answer

Inverse square

Question 3

Atoms with same number of neutrons, but different number of nucleons are called

Accepted Answer

Isotones

Answer

Isobars

Answer

Isotopes

Answer

Isoters

Question 4

Fast breeder test reactor at Kalpakkam is designed for using

Accepted Answer

Thorium as a fertile material

Answer

U-238 as a fertile material

Answer

Helium as a coolant

Answer

Uranium ore directly as a fuel

Question 5

Fission of U-235 on slow neutron bombardment can be represented by

Accepted Answer

92 U 235 + 0 n 1 → 56 Ba 143 + 36 Kr 90 + 3 0 n 1 + Q (energy)

Answer

92 U 235 + 0 n 1 → 56 Ba 143 + 36 Kr 90

Answer

92 U 235 + 0 n 1 → 56 Ba 143 + 36 Kr 90 + 3 0 n 1

Answer

92 U 235 + 0 n 1 → 92 U 236 + 3 0 n 1 + Q (energy)

Question 6

Which of the following reactors is operated at high neutron flux and low power level?

Accepted Answer

Research reactor

Answer

Breeder reactor

Answer

Heterogeneous reactor

Answer

Liquid metal (e.g., molten sodium) cooled reactor

Question 7

The type of pump used for the recirculation of molten sodium coolant in liquid metal cooled reactor is a/an __________ pump.

Accepted Answer

Electromagnetic

Answer

Reciprocating

Answer

Centrifugal

Answer

Volute

Question 8

A moderator __________ the neutrons.

Accepted Answer

Slows down

Answer

Absorbs

Answer

Accelerates

Answer

Reflects

Question 9

Which of the following nuclear reactors is the most efficient thermodynamically while operating between the same temperature and pressure limits of the reactor?

Accepted Answer

Boiling water

Answer

Molten sodium cooled

Answer

CO 2 gas cooled

Answer

Pressurised water