Nuclear Power Engineering MCQs

Question 1

The ratio of atomic radius to its nuclear radius is about

Accepted Answer

10 5

Answer

10 8

Answer

10 12

Answer

10 15

Question 2

Nuclides having the same atomic numbers are termed as

Accepted Answer

Isomers

Answer

Isotopes

Answer

Isotones

Answer

Isobars

Question 3

Enriched uranium means that, it contains

Accepted Answer

More than 0.71% of U-235

Answer

Only fertile material

Answer

Only fissile material

Answer

No impurities

Question 4

The ratio of neutrons to protons of an element having a mass number and atomic number of 80 and 40 respectively is

Accepted Answer

1

Answer

0.5

Answer

2

Answer

4

Question 5

In a pressurised water reactor (PWR), the

Accepted Answer

Coolant water is pressurised to prevent bulk boiling of water in the core

Answer

Fuel is natural uranium and heavy water acts both as moderator & coolant

Answer

Coolant water boils in the core of the reactor

Answer

Use of moderator is not required

Question 6

A fast breeder reactor employs

Accepted Answer

U-235 as fuel

Answer

Graphite as moderator

Answer

Water as coolant

Answer

Molten sodium as coolant as well as moderator

Question 7

Radioactivity of an isotope is expressed in

Accepted Answer

Curie

Answer

Barn

Answer

MeV

Answer

Ergs

Question 8

The most commonly used nuclear fuel in boiling water reactor is

Accepted Answer

Enriched uranium

Answer

Natural uranium

Answer

Plutonium

Answer

Monazite sand

Question 9

In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous

Accepted Answer

Uranium hexaflouride

Answer

Uranium oxide

Answer

Uranium carbide

Answer

Uranium sulphate