Enriched uranium is one in which__________________?
A. %age of u235 has been artificially in-creased
B. %age of u has been artificially increased
C. %age of u234 has been artificially in-creased
D. Extra energy is pumped from outside
The most commonly used moderator in nuclear plants is___________________?
A. heavy water
B. concrete and bricks
C. graphite and concrete
D. deutrium
Moderator in nuclear plants is used to__________________?
A. Reduce temperature
B. Extract heat from nuclear reaction
C. Control the reaction
D. Cause collision with the fast moving neutrons to reduce their speed