11. The main ore of uranium is
pitchblende
monazite sand
cassiterite
chalcopyrite
✅ The correct answer is option A.
Nuclear Power Engineering MCQs
12. Moderating material used in a thermal-reactor should be a
good absorber of neutrons.
solid substance.
poor absorber of neutrons.
none of these.
✅ The correct answer is option C.
13. Uranium Corporation of India Limited (UCIL) engaged in the mining & concentration of uranium ore is located at
Alwaye (in Kerala)
Jadugoda (in Jharkhand)
Kalpakkam (in Tamilnadu)
Gopalpur coast (in Orissa)
✅ The correct answer is option B.
14. The main ore of thorium is
pitchblende
monazite sand
limonite
galena
✅ The correct answer is option B.
15. Nuclides having the same atomic numbers are termed as
isotopes
isomers
isotones
isobars
✅ The correct answer is option B.
16. The radioisotope used to study the thyroid gland is
iodine
cobalt
iron
carbon
✅ The correct answer is option A.
17. Coolant present in the primary circuit of a pressurised water reactor is high pressure
sub cooled water
saturated water
superheated steam
saturated steam
✅ The correct answer is option B.
18. A fertile material is the one, which can be
converted into fissile material on absorption of neutron.
fissioned by slow (thermal) neutrons.
fissioned by fast neutrons.
fissioned by either slow or fast neutrons.
✅ The correct answer is option A.
19. Absorption/scattering cross-section of an element is expressed in “barn”, which is equivalent to
10-24 cm2
10-12 cm
1 Angstrom
10-24 cm
✅ The correct answer is option A.
20. In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous
uranium oxide
uranium hexaflouride
uranium carbide
uranium sulphate
✅ The correct answer is option B.