121. Which of the following is not a naturally occurring nuclear fuel ?
Uranium-238
Thorium-233
Plutonium-239
None of these
✅ The correct answer is option C.
Nuclear Power Engineering MCQs
122. Uranium is recovered from its ore (pitchblende) by
froth floatation technique.
leaching with sulphuric acid.
smelting in a furnace.
dissolving in water.
✅ The correct answer is option B.
123. β-rays emission in radioactive disintegration is always accompanied by the emission of
γ-rays
α-rays
neutrons
none of these
✅ The correct answer is option A.
124. The sum of masses of two nuclei produced in nuclear fission compared to the mass of original nucleus is
less
more
same
much more
✅ The correct answer is option A.
125. The second underground nuclear test was conducted by India at
Jaisalmer
Pokhran
Kalpakkan
Narora
✅ The correct answer is option B.
126. The most abundant isotope of natural uranium is
92U238
92U235
92U234
none of these
✅ The correct answer is option A.
127. Fast breeder reactors do not
use Th-232 as fissile fuel.
convert fertile material to fissile material.
use fast neutrons for fission.
use molten sodium as coolant.
✅ The correct answer is option A.
128. An ideal coolant for a nuclear reactor should
be a good absorber of neutrons.
be capable of attaining high temperature, only when it is pressurised.
have high density, but low heat transfer co-efficient.
be free from radiation damage and non-corrosive.
✅ The correct answer is option D.
129. Which of the following nuclear materials is fissile ?
Uranium-238
Thorium-232
Plutonium-239
None of these
✅ The correct answer is option C.
130. The number of neutrons in the nucleus of Uranium-233 (92U233) is
141
92
233
325
✅ The correct answer is option A.