A. slowing down fast neutrons so that Uz fission continues by slow motion neutrons
B. accelerating fast neutrons
C. absorbing all neutrons
D. using moderator
E. enriching U235
A. more
B. less
C. same
D. zero
E. negative, i.e. fuel would be generated
A. higher cost of nuclear fuel
B. high initial cost
C. high heat rejection in condenser
D. lower temperature and pressure condi-tions
E. nuclear hazard risk
A. increased production of neutrons
B. complete absorption of neutrons
C. controlled production of neutrons
D. decreased leakage of neutrons
E. decrease of speed of neutrons
A. plutonium
B. uranium
C. deuterium
D. thorium
E. lithium
A. Co2
B. pressurised water
C. mixture of water and steam
D. liquid metal
E. mercury
A. light weight atoms
B. heavy weight atoms
C. critical atoms
D. zero weight atoms
E. there is no such criterion
A. 90% U-235
B. U-238
C. U-235
D. Pu-239
E. U-239
A. for boiling pi water in the core
B. to use liquid sodium metal as coolant
C. to use intermediate coolant
D. to prevent the water coolant from boiling in the core
E. to eliminate the coolant loop of the pressurised water