A. Fissile atoms are evenly distributed throughout the mass of nuclear reactor
B. Same substance (e.g. heavy water) is used as moderator & coolant
C. The fuel and the moderator is mixed to form a homogeneous material
D. All A., B. and C.
Correct Answer: The fuel and the moderator is mixed to form a homogeneous material ✔
Last Updated: March 06, 2019