NUCLEAR POWER ENGINEERING QUIZ

β-rays emission in radioactive disintegration is always accompanied by the emission of

α-rays

Neutrons

None of these

γ-rays

TRUE ANSWER : ?
YOUR ANSWER : ?

Heavy water is preferred over ordinary water as a coolant, because it.

Acts both as an efficient coolant as well as a moderator

All of these

Is less prone to radiation damage

Can be heated to a higher temperature without pressurizing

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ moderator is used in a fast breeder reactor.

Graphite

No

Heavy water

Beryllium

TRUE ANSWER : ?
YOUR ANSWER : ?

The critical mass of a fissionable material can be reduced by

Heating it

Surrounding it by neutron reflecting material

Cooling it

Surrounding it by neutron absorbing material

TRUE ANSWER : ?
YOUR ANSWER : ?

Quantity of fissionable material (i.e. U-235) in natural uranium is __________ percent.

12.73

0.71

99.29

6.31

TRUE ANSWER : ?
YOUR ANSWER : ?

When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as

Isotopes

Isobars

Isotones

Isomers

TRUE ANSWER : ?
YOUR ANSWER : ?

Water is a better coolant than a gas (like CO₂, He, N₂ etc.), because it

Has a better heat transfer characteristics, and it can be pressurised to attain a high temperature

Is a better neutron moderator as well

Requires comparatively smaller pumps and heat exchanger for a given heat transfer rate

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following isotopes is not present in natural uranium?

U-238

U-234

U-235

U-232

TRUE ANSWER : ?
YOUR ANSWER : ?

In the nuclear reaction, 93N239 → 93Pu239 + ?; the missing particle is a/an

Electron

Neutron

Proton

Position

TRUE ANSWER : ?
YOUR ANSWER : ?

In a nuclear explosion, the energy is released primarily in the form of __________ energy.

Kinetic

Potential

Electrical

Thermal

TRUE ANSWER : ?
YOUR ANSWER : ?