Which of the following is not a good moderating material?

The mass number of an element is not changed, when it emits __________ radiations.

Thermal nuclear reactors using enriched uranium as fuel contains a maximum of __________ percent fissile material i.e. U-235.

__________ moderator is used in a fast breeder reactor.

Critical mass is the minimum mass of nuclear fissile material required for the

An ideal coolant for a nuclear reactor should

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

Mass of a positron is same as that of a/an

__________ nuclear reactor does not require a heat exchanger to supply steam to power turbine.

Which is not a fissile nuclear material?

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

A boiling water reactor is the one, in which the

A fast breeder reactor

Heat is generated in a nuclear reactor (thermal) by

Fuel for a nuclear reactor (thermal) is

A homogeneous reactor is the one, in which the

The phenomenon of radioactivity was discovered by

Fast breeder test reactor at Kalpakkam is designed for using

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

A radioactive substance does not emit

Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around __________ m/sec.

Atoms of U-238 and U-235 differ in structure by three

Percentage of U-238 in natural uranium is around

Candu reactor is a __________ nuclcear reactor.

A control rod

In a homogeneous nuclear reactor, the __________ are mixed together.

An electron has a mass that is approximately __________ that of the proton.

Nucleus of ₉₂U²³⁵ contains __________ protons.

Thermal neutrons which are used to cause the fission of U-235 have energy __________ eV.

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