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chemical engineering nuclear power engineering MCQs

Practise multiple-choice questions from chemical engineering nuclear power engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering nuclear power engineering Mcqs
1. Thorium-232 (a fertile material) on absorption of a neutron gets converted into ___________ , which is a fissile material?
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A. Thorium-233

B. Plutonium-239

C. Uranium-235

D. Uranium-233
2. Number of secondary neutron emitted on fission of an atom of U-235 by slow neutron bombardment is_______________?
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A. 92

B. 235

C. 3

D. 200

3. A heterogeneous reactor is the one, in which the moderator and the________________?
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A. Coolant are present in different phases (e.g., heavy water and graphite)

B. None of these

C. Coolant are different materials

D. Fuel are present in different phases (e.g. uranium and heavy water)
4. Which of the following factors is the most important in the site selection for a nuclear power plant ?
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A. Abundant availability of water

B. Proximity to fuel source

C. Remotely located from residential areas

D. Absence of earthquake prone zone in nearby areas
5. Which of the following may not need a moderator ?
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A. Fast breeder reactor

B. Candu reactor

C. Pressurised water reactor

D. Homogeneous reactor

6. ?-rays emission in radioactive disintegration is always accompanied by the emission of____________________?
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A. None of these

B. Neutrons

C. ?-rays

D. ?-rays
7. Liquid metal (e.g., molten sodium) is preferred as a coolant in case of a/an ______________ reactor?
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A. Fast breeder

B. Enriched uranium (3% U-235) fuelled

C. Graphite moderated

D. Homogeneous

8. The main purpose of control rod in a nuclear reactor is to control the___________________?
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A. Chain reaction and hence the power output by regulating the number of secondary neutrons

B. Emission of hazardous radiation

C. Conversion of fissile material into fertile material

D. Velocity of the secondary neutrons

E. sing fission</strong>

9. Heavy water is preferred over ordinary water as a coolant, because it?
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A. Acts both as an efficient coolant as well as a moderator

B. Can be heated to a higher temperature without pressurizing

C. Is less prone to radiation damage

D. All A., B. and C.
10. Tarapur (INDIA) atomic power station____________________?
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A. Has an installed capacity of 400 MW

B. Is the first power reactor in India, which became critical in 1969

C. All A., B. and C.

D. Has two boiling water reactors of American design

11. Net efficiency of ordinary light water cooled nuclear reactor is about _____________ percent?
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A. 88

B. 32

C. 52

D. 72

12. Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of ____________ percent of U-235 (i.e. fissile material)?
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A. 65

B. 15

C. 45

D. 85
13. Final product of uranium extraction plant at Jadugoda (Bihar) is________________?
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A. Magnesium diuranate

B. Uranium oxide

C. Uranium

D. Uranium carbide

14. Radioactive decay of a material involves a _____________ order reaction?
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A. Second

B. Third

C. First

D. Zero

15. Thermal neutrons which are used to cause the fission of U-235 have energy _____________ eV?
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A. > 1

B. 25-Jan

C. > 200

D. < 0.025
16. In nuclear reactions, ______________ number is conserved?
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A. Mass

B. Atomic

C. Both A. & B.

D. Neither A. nor B.

17. Which of the following ores contains maximum percentage of uranium ?
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A. Carnotite

B. Pitchblende

C. Rescolite

D. Thorium

18. Isotopes of an element have the same__________________?
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A. Electronic configuration

B. Mass number

C. Number of neutrons

D. Atomic weight

19. Unit of radioactivity is_________________?
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A. Curie

B. Fermi

C. Angstrom

D. Barn

20. Water is a better coolant than a gas (like CO2, He, N2 etc.), because it_________________?
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A. Require comparatively smaller pumps and heat exchanger for a given heat transfer rate

B. Is a better neutron moderator as well

C. All A., B. and C.

D. Has a better heat transfer characteristics, and it can be pressurised to attain a high temperature