91. The phenomenon of nuclear fission is opposite to that of
radioactive decay
thermionic emission
nuclear fusion
combustion
✅ The correct answer is option C.
Nuclear Power Engineering MCQs
92. Which of the following is present in Bhabha Atomic Research Centre (BARC) complex, Trombay (Bombay) ?
Power reactor
Research reactor
Fast breeder reactor
Heavy water plant
✅ The correct answer is option B.
93. What is the average life of a radioactive atom having a ‘half life period’ of T ?
1.44 T
0.144 T
14.4 T
2T
✅ The correct answer is option A.
94. Which one is radioactive in nature ?
Helium
Deuterium
Heavy hydrogen
Tritium
✅ The correct answer is option D.
96. Uranium ore is mined & concentrated in India at
Jadugoda(Jharkhand)
Kota (Rajasthan)
Tuticorin (Tamilnadu)
Talchar (Orissa)
✅ The correct answer is option A.
97. Which of the following ores contains maximum percentage of uranium ?
Carnotite
Thorium.
Rescolite
Pitchblende
✅ The correct answer is option D.
98. 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.
99. Which of the following accounts for the maximum energy release in the nuclear fission process ?
Kinetic energy of fission products
Radioactive decay of fission products
Instantaneous release of γ-rays
Kinetic energy of neutrons
✅ The correct answer is option A.
100. Heavy water used in the nuclear reactors to slow down the speed of neutrons is
highly purified water.
a compound of oxygen and deuterium.
water having dissolved salts of heavy metals.
none of these.
✅ The correct answer is option B.