The unit of radio-activity is_____________? - PakMcqs

Related Mcqs:

1. 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...

2. Electron-volt is the unit of________________?

   A. atomic power B. energy C. voltage D. radio activity E. there is no such unit....

3. Boiling water reactor employs__________________?

   A. boiler B. direct cycle of coolant system C. double circuit system of coolant cycle D. multi pass system E. single circuit system...

4. Which of the following are ferrite materials__________________?

   A. U233andPu239 B. U C. U238andPu239 D. U238andTh239 E. none of the above...

5. The fast breeder reactor uses the following moderator__________________?

   A. demineralised water B. carbon dioxide C. heavy water D. graphite E. no moderator is used...

6. U238 will undergo fission by_________________?

   A. high energy (fast) neutrons alone B. low energy (slow) neutrons alone C. either fast or slow neutrons D. medium energy neutrons E. none of the above...

7. Pick up the wrong statement Fast breeder reactors__________________?

   A. operate at extremely high power densities. B. are liquid-metal cooled C. produce more fuel than they consume D. are unmoderated E. use water as coolant...

8. Which of the following is secondary fuel ?

   A. Th232andU238 B. U233andPu239 C. U233andPu238 D. non oh these...

9. In triggering fission, the following types of neutrons are desirable_________________?

   A. fast moving B. slow moving C. critical neutrons D. neutrons at rest E. none of the above...

10. In nuclear fission___________________?

    A. the original elements change into completely different elements B. the electrons of the element change C. the molecules rearrange themselves to form other molecules D. none of the above...