Nuclear Power Engineering

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

A. Acts both as an efficient coolant as well as a moderator
B. Can be heated to a higher temperature without pressurizing
C. Is less prone to radiation damage
D. All A., B. and C.

An ideal coolant for a nuclear reactor should ________________?

A. Be a good absorber of neutrons
B. Be capable of attaining high temperature, only when it is pressurised
C. Have high density, but low heat transfer co-efficient
D. Be free from radiation damage and non-corrosive

The number of neutrons accompanying the formation of 54Xe139 and 38Sr94 from the absorption of a slow neutron by 92U235, followed by nuclear fission is __________________?

A. 1
B. 2
C. 3
D. 4