A. same atomic number and different masses
B. same chemical properties but different atomic numbers
C. different masses and different atomic numbers
D. different chemical properties and same atomic numbers
E. same chemical properties and same atomic numbers
Related Mcqs:
- The number of isotopes of hydrogen are _________________?
A. 1
B. 2
C. U
C. 3
E. 0 - A reactor capable of converting a ferrite material into fissile isotopes is called____________________?
A. regenerative reactor
B. fast breeder reactor
C. breeder reactor
D. boiling water reactor
E. ferrite reactor - Artificial radioactive isotopes find application in________________?
A. power generation
B. nucleonic devices
C. nuclear fission
D. nuclear fusion
E. medical field - A nuclear unit becoming critical means_______________?
A. it is generating power to rated capacity
B. it is capable of generating much more than rated capacity
C. there is danger of nuclear spread
D. chain reaction that causes automatic splitting of the fuel nuclei has been established
E. it generates no heat - The main interest of shielding in nuclear reactor is protection against_______________?
A. X-rays
B. infra-red rays
C. a, P, and y rays
D. neutrons and gamma rays
E. electrons - The process by which a heavy nucleus is splitted into two light nuclei is known as_________________?
A. splitting
B. fission
C. fusion
D. disintegration
E. chain reaction - Ideally the neutron flux in reactor should be__________________ ?
A. maximum in center and zero at side
B. maximum at side and zero in center
C. uniform throughout
D. zero throughout
E. none of the above - The function of control rods in nuclear plants is to__________________?
A. control temperature
B. control readioactive pollution
C. control absorption of neutron
D. control fuel consumption
E. none of the above - Solid- fuel for nuclear reactions may be fabricated into various small shapes such as___________________?
A. plates
B. pallets
C. pins
D. any one of the above
E. none of the above - A fast breeder reactor__________________?
A. uses graphite rods as moderator
B. has powerful moderator
C. has no moderator
D. uses ferrite material as moderator
E. uses pressurised water as moderator
