Nuclear Power Engineering
Use of molten metal as a coolant in fast breeder reactor helps in

Rapid heat transfer from the core
Breeding neutrons
Accelerating the reaction rate in the core
Accelerating the neutrons

ANSWER DOWNLOAD EXAMIANS APP

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

Requires comparatively smaller pumps and heat exchanger for a given heat transfer rate
Is a better neutron moderator as well
All of these
Has a better heat transfer characteristics, and it can be pressurised to attain a high temperature

ANSWER DOWNLOAD EXAMIANS APP

Nuclear Power Engineering
A control rod

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

ANSWER DOWNLOAD EXAMIANS APP