3666. Fast breeder reactors are most usable in India, because of our largest __________ deposits.
thorium
plutonium
uranium
none of these
✅ The correct answer is option A.
3669. Both tritium and deuterium have the same number of
neutrons
electrons
protons
nucleons
✅ The correct answer is option A.
3637. 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.
3642. 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.
3647. The second underground nuclear test was conducted by India at
Jaisalmer
Pokhran
Kalpakkan
Narora
✅ The correct answer is option B.
3649. 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.
3655. Which of the following nuclear materials is fissile ?
Uranium-238
Thorium-232
Plutonium-239
None of these
✅ The correct answer is option C.
3659. Secondary cooling circuit is a must in molten sodium cooled fast breeder reactor for
achieving high degree of superheat in the steam.
faster heat removal rate from the core.
lowering the coolant circulation pressure.
avoiding the mixing of water with radioactive sodium, as it may cause explosion.
✅ The correct answer is option D.
3664. Which of the following ores contains maximum percentage of uranium ?
Carnotite
Thorium.
Rescolite
Pitchblende
✅ The correct answer is option D.
3667. Which of the following gases has very high neutron capture cross-section, making it unsuitable as a coolant in nuclear reactor?
N2
He
CO2
H2
✅ The correct answer is option A.