101. The phenomenon of radioactivity was discovered by
Madam Curie
Bacquerrel
Roentgen
J.J. Thomson
✅ The correct answer is option B.
Nuclear Power Engineering MCQs
103. Which of the following factors is the most important in the site selection for a nuclear power plant ?
Absence of earthquake prone zone in nearby areas.
Abundant availability of water.
Remotely located from residential areas.
Proximity to fuel source.
✅ The correct answer is option A.
104. Percentage of U-238 in natural uranium is around
0.71
99.29
0.015
29.71
✅ The correct answer is option B.
105. __________ have the same mass number, but different nuclear charge.
Isotopes
Isobars
Isotones
none of these
✅ The correct answer is option B.
106. Which is the most commonly used molten metal for cooling of nuclear reactors ?
Calcium
Sodium
Mercury
Zinc
✅ The correct answer is option B.
107. Artificially produced radioactive isotopes are used for
power generation.
treatment of certain diseases.
initiating nuclear fission and fusion.
all (a), (b) and (c).
✅ The correct answer is option B.
108. Liquid metal (e.g, . molten sodium) is preferred as a coolant in case of a/an __________ reactor.
homogeneous
graphite moderated
fast breeder
enriched uranium (3% U-235) fuelled
✅ The correct answer is option C.
109. Which of the following reactors is operated at high neutron flux and low power level ?
Breeder reactor.
Research reactor.
Heterogeneous reactor.
Liquid metal (e.g., molten sodium) cooled reactor.
✅ The correct answer is option B.
110. The critical mass of a fissionable material can be reduced by
heating it.
cooling it.
surrounding it by neutron reflecting material.
surrounding it by neutron absorbing material.
✅ The correct answer is option C.