NUCLEAR POWER ENGINEERING QUIZ

Which of the following may not need a moderator?

Homogeneous reactor

Candu reactor

Fast breeder reactor

Pressurised water reactor

TRUE ANSWER : ?
YOUR ANSWER : ?

The half life period of a radioactive element depends on its

Pressure

None of these

Temperature

Amount

TRUE ANSWER : ?
YOUR ANSWER : ?

Function of control rod in a nuclear reactor is to control

Absorption of neutrons

Pressure

Temperature

Fuel consumption

TRUE ANSWER : ?
YOUR ANSWER : ?

Plutonium

Has much lower melting point (640°C ) compared to thorium (1690°C)

Is recovered from spent fuel from thermal nuclear reactor

Both A & B

Neither A nor B

TRUE ANSWER : ?
YOUR ANSWER : ?

Primary purpose of a __________ nuclear reactor is to supply a high neutron flux of the order of 10¹³ to 10¹⁴ neutrons/cm² second.

Homogeneous

Breeder

Research

Power

TRUE ANSWER : ?
YOUR ANSWER : ?

The time required for half of the __________ of a radioactive isotope to decay is called its half life.

Nuclei

Protons

Electrons

Neutrons

TRUE ANSWER : ?
YOUR ANSWER : ?

Thermal shield is used in high powered nuclear reactors to

Slow down the secondary neutrons

Protect the fuel element from coming in contact with the coolant

Protect the walls of the reactor from radiation damage

Absorb the fast neutrons

TRUE ANSWER : ?
YOUR ANSWER : ?

Percentage of heavy water in ordinary water is around

32.97

7.54

0.015

0.71

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a naturally occurring nuclear fuel?

Plutonium⁻²39

None of these

Thorium⁻²33

Uranium⁻²38

TRUE ANSWER : ?
YOUR ANSWER : ?

The most commonly used nuclear fuel in boiling water reactor is

Natural uranium

Enriched uranium

Plutonium

Monazite sand

TRUE ANSWER : ?
YOUR ANSWER : ?