slow down the secondary neutrons.
absorb the secondary neutrons.
control the chain reaction.
none of these.
✅ The correct answer is option A.
Chemical Engineering MCQs
Heavy water is used as a moderator in a
pressurised water reactor (PWR).
boiling water reactor (BWR).
Candu reactor.
molten sodium cooled reactor.
✅ The correct answer is option C.
Thorium metal
resembles steel in appearance.
is less hard (in the range of silver).
is highly ductile.
all (a), (b) and (c).
✅ The correct answer is option D.
Heavy water has maximum density at __________ °C.
4
11.6
0
18.6
✅ The correct answer is option B.
Spent fuel from the nuclear thermal reactor contains
fission products
plutonium
unused fuel
all (a), (b) & (c)
✅ The correct answer is option D.
Energy produced in the nuclear fission is of the order of __________ MeV.
20
200
1000
2000
✅ The correct answer is option B.
Quantity of fissionable material (i.e. U-235) in natural uranium is __________ percent.
0.71
6.31
99.29
12.73
✅ The correct answer is option A.
U-235 content in enriched uranium, that is normally used in power reactors (e.g., at Tarapur atomic power plant), is about __________ percent.
85
50
3
97
✅ The correct answer is option C.
Uranium ore is currently mined & concentrated at
Jadugoda
Ghatsila
Khetri
Alwaye
✅ The correct answer is option A.
Which one is the radioactive isotope of hydrogen ?
Deuterium
Ortho-hydrogen
Tritium
None of these
✅ The correct answer is option C.