Nuclear Power Engineering
The main purpose of control rod in a nuclear reactor is to control the

Velocity of the secondary neutrons
Conversion of fissile material into fertile material
Emission of hazardous radiation
Chain reaction and hence the power output by regulating the number of secondary neutrons causing fission

ANSWER DOWNLOAD EXAMIANS APP

Nuclear Power Engineering
A control rod

Is generally made of boron, hafnium or cadmium
Should have large absorption cross-section
Should have small absorption cross-section
Both B and C

ANSWER DOWNLOAD EXAMIANS APP