Power Plant Questions and Answers – Chain Reaction and Nuclear Reactors

This set of Power Plant Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Chain Reaction and Nuclear Reactors”.

1. The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element?
a) Z
b) A
c) A+Z
d) A-Z
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2. The time required for half of the __________ of a radioactive isotope to decay is called its half-life.
a) neutron
b) electron
c) proton
d) nuclei
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3. Thermal nuclear reactors using enriched uranium as fuel contains a maximum of __________ percent fissile material i.e. U-235.
a) 1
b) 2
c) 3
d) 6
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4. __________ moderator is used in a fast breeder reactor.
a) Heavy water
b) Graphite
c) No
d) Beryllium
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5. Nuclides having the same atomic number are termed as?
a) Isobars
b) Isotones
c) Isotopes
d) Isomers
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6. Main source of __________ is monazite sand.
a) Uranium
b) Polonium
c) Halfnium
d) Thorium
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7. Emission of β-particles during radioactive decay of a substance is from __________
a) nucleus
b) innermost shell
c) outermost shell
d) none of the mentioned
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8. A fertile material is the one, that can be __________
a) converted into fissile material on absorption of neutron
b) fissioned by either slow or fast neutrons
c) fissioned by slow (thermal) neutrons
d) fissioned by fast neutrons
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9. The half-life period of a radioactive element depends on its __________
a) temperature
b) pressure
c) amount
d) none of the mentioned
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10. Which is radioactive in nature?
a) Helium
b) Deuterium
c) Tritium
d) Heavy Hydrogen
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11. Which is the most commonly used nuclear fuel in boiling water reactor?
a) enriched uranium
b) plutonium
c) natural uranium
d) monazite sand
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12. Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.
a) U-235
b) U-233
c) U-238
d) PU-239
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13. Fuel for a nuclear reactor (thermal) is _____________
a) Uranium
b) Plutonium
c) Radium
d) None of the mentioned
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14. The first underground nuclear test was conducted by India at _____________
a) Pokhran
b) Kalpakkam
c) Jaisalmer
d) Narora
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Sanfoundry Global Education & Learning Series – Power Plant Engineering.

To practice all areas of Power Plant Engineering, here is complete set of 1000+ Multiple Choice Questions and Answers.