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Nuclear Power Plants - Interview Questions and Answers

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41. Boiling water reactor uses the following as moderator, coolant and working fluid
A. ordinary fluid
B. heavy water
C. molten lead
D. hydrogen gas
E. none of the above.
Explanation:
42. Enriched uranium may contain fissionable contents of the order of
A. 1-99%
B. 1-25%
C. 1-50%
D. 1-75%
E. 1-90%.
Explanation:
43. Ideally the neutron flux in reactor should be
A. maximum in centre and zero at side
B. maximum at side and zero in centre
C. uniform throughout
D. zero throughout
E. none of the above.
Explanation:
44. Pick up the wrong statement
A. In a heterogeneous or solid-fuel reactor, the fuel is mixed in a regular pattern within moderator.
B. Slow or thermal neutrons have energy of the order or 0.025 eV
C. Fast neutrons have energies above 1000 eV
D. Fast reactor uses moderator
E. Most serious drawback in using water as coolant in nuclear plants is its high vapor pressure.
Explanation:
45. Which of the following are ferrite materials
A. U233andPu239
B. U
C. U238andPu239
D. U238andTh239
E. none of the above
Explanation:
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