nuclear power plants MCQs – Page 5

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

nuclear power plants Mcqs
81. A pressurised water reactor employs pressuriser for the following application________________?
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A. to Supply high pressure steam

B. to increase pressure of water in primary circut

C. all of the above

D. to maintain constant pressure in primary circuit under varying load

E. to provide subcooled water at high pressure

82. When a reactor becomes critical, then the production of neutrons is_________________?
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A. zero

B. stopped

C. initiated

D. exactly balanced by the loss of neutrons through leakage

E. infinite

83. In nuclear fission___________________?
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A. the original elements change into completely different elements

B. none of the above

C. the molecules rearrange themselves to form other molecules

D. strong>. the electrons of the element change

84. Plutonium-239 is produced__________________?
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A. by neutron irradiation of IT*

B. by neutron irradiation of thorium

C. as basic raw material

D. in high capacity furnaces

E. artificially

85. The efficiency of a nuclear power plant in comparison to conventional and nuclear consideration is__________________?
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A. lower temperature and pressure condi-tions

B. nuclear hazard risk

C. high initial cost

D. higher cost of nuclear fuel

E. high heat rejection in condenser

86. Artificial radioactive isotopes find application in________________?
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A. nuclear fusion

B. nuclear fission

C. medical field

D. nucleonic devices

E. power generation

87. Natural uranium is made up of__________________?
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A. 99.282% U234, 0.712% U238, 0.006% U235

B. 99.282% U238, 0.712% U235, 0.006% U234

C. 99.282% U235, 0.712% U238, 0.06% U234

D. 99.282% U235, 0.712% U234, 0.006% U238

E. none of the above

88. A reactor capable of converting a ferrite material into fissile isotopes is called____________________?
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A. boiling water reactor

B. fast breeder reactor

C. regenerative reactor

D. breeder reactor

E. ferrite reactor

89. Electron-volt is the unit of________________?
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A. there is no such unit.

B. energy

C. atomic power

D. radio activity

E. voltage

90. In boiling water reactor, moderator is__________________?
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A. graphite rod

B. ferrite rod

C. coolant itself

D. blanket of thorium

E. liquid sodium metal

91. For economical operation of a nuclear plant__________________?
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A. reflector should be used

B. used fuel should be reprocessed

C. coolant should be employed

D. moderator should be used

E. control rods should be used