Which of the following is the heaviest________________? A. neutron B. protonC. atom D. electron E. nucleus

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 E. all impurities…

Which of the following are ferrite materials__________________? A. U233andPu239B. U C. U238andPu239 D. U238andTh239 E. none of the above

The main interest of shielding in nuclear reactor is protection against_______________? A. X-rays B. infra-red rays C. a, P, and y raysD. neutrons and gamma rays E. electrons

The most commonly used moderator in nuclear plants is___________________? A. heavy water B. concrete and bricks C. graphite and concrete D. deutriumE. graphite

Moderator in nuclear plants is used to__________________? A. reduce temperature B. extract heat from nuclear reaction C. control the reactionD. cause collision with the fast moving neutrons to reduce their speed E. moderate the radioactive pollution

The nuclear energy is measured as__________________? A. MeV B. curie C. farads D. MW E. kWhr

Amongst the following, the fissionable materials are________________? A. U233andPu239 B. U23iandPu233 C. U235andPu235 D. U238andPu239 E. U243andPu235

Isotopes of same elements have___________________? A. same atomic number and different massesB. 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…

The efficiency of a nuclear power plant in comparsion to a conventional thermal power plant is________________? A. same B. moreC. less D. may be less or mote depending on size E. unpredictable