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nuclear power plants MCQs

Practise focused nuclear power plants questions with marked answers for exam preparation and subject revision.

nuclear power plants Mcqs
1. Which is not identical for an atom and an isotope_________________?
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A. atomic number

B. all of the above

C. position in periodic table

D. chemical properties

E. mass number
2. Reflector in nuclear plants is used to________________?
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A. conserve energy

B. is not used

C. return the neutrons back into the core

D. shield the radioactivity completely

E. check polllution

3. Gas cooled reactor uses following materials as moderator, and coolant____________________?
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A. concrete, N2

B. heavy water, C02

C. graphite, C02

D. lead, H2

E. graphite, air

4. Isotopes of same elements have___________________?
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A. same chemical properties but different atomic numbers

B. same chemical properties and same atomic numbers

C. same atomic number and different masses

D. different chemical properties and same atomic numbers

E. different masses and different atomic numbers

5. Hydrogen is preferred as better coolant in comparison to C02 because former_____________________?
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A. is a good conductor

B. has high specific heat

C. is lighter

D. is inert

E. all of the above

6. In nuclear fission each neutron that causes fission releases_______________?
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A. more than one new neutrons

B. no new neutron

C. one new neutron

D. many-fold neutrons

E. at least one new neutron

7. Enriched uranium is one in which__________________?
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A. all impurities have been removed

B. extra energy is pumped from outside

C. %age of U235 has been artificially in-creased

D. %age of U has been artificially increased

E. %age of U234 has been artificially in-creased

8. Which of the following particles is the lightest__________________?
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A. neutron

B. meson

C. proton

D. electron

E. nucleus

9. Boiling water reactor employs__________________?
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A. double circuit system of coolant cycle

B. single circuit system

C. multi pass system

D. direct cycle of coolant system

E. boiler

10. Which of the following nuclear reactor does not need a heat exchanger for generation of steam____________________?
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A. gas cooled

B. pressurised water

C. liquid metal cooled

D. none of the above

E. boiling water
11. The efficiency of a nuclear power plant in comparsion to a conventional thermal power plant is________________?
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A. more

B. same

C. may be less or mote depending on size

D. unpredictable

E. less
12. The first unclear power plant in India is located at____________________?
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A. Kota

B. Tarapur

C. Baraeilly

D. Kalapakkam

E. Kerala

13. The nuclear energy is measured as__________________?
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A. MW

B. MeV

C. curie

D. kWhr

E. farads

14. Atomic number of an element in the periodic table represents the numbers of_________________?
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A. neutrons in the nucleus

B. electrons in the atom

C. protons in the nucleus

D. electrons in me nucleus

E. neutrons in the atom

15. The total energy released in fission of U is__________________?
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A. 10 MeV

B. 199 MeV

C. 11 MeV

D. 168 MeV

E. 5 MeV

16. The main interest of shielding in nuclear reactor is protection against_______________?
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A. neutrons and gamma rays

B. X-rays

C. infra-red rays

D. a, P, and y rays

E. electrons

17. Fast breeder reactor uses___________________?
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A. single circuit system

B. boiler

C. direct cycle of coolant system

D. multi pass system

E. double circuit system of coolant cycle
18. A nuclear unit becoming critical means_______________?
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A. it is capable of generating much more than rated capacity

B. it is generating power to rated capacity

C. chain reaction that causes automatic splitting of the fuel nuclei has been established

D. there is danger of nuclear spread

E. it generates no heat

19. Ferrite material is____________________?
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A. the basic fuel for nuclear paints

B. the material which absorbs neutrons and undergoes spontaneous changes leading to the formation of fissionable material

C. basic raw material for nuclear plants

D. the most fissionable material

E. none of the above

20. Boiling water reactor uses the following as moderator, coolant and working fluid________________?
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A. ordinary fluid

B. heavy water

C. hydrogen gas

D. molten lead

E. none of the above