211. Solar energy results from __________ reaction. fission combustion thermonuclear none of these ✅ The correct answer is option C.
212. The 92U238 emits an a-particle. The product is 90U234 90U238 90U236 92U236 ✅ The correct answer is option A.
213. The time required for half of the __________ of a radioactive isotope to decay is called its half life. nuclei electrons protons neutrons ✅ The correct answer is option A.
214. Sodium melts (at atmospheric pressure) at a temperature of __________ °C. 58 98 348 588 ✅ The correct answer is option B.
215. The type of pump used for the recirculation of molten sodium coolant in liquid metal cooled reactor is a/an __________ pump. electromagnetic reciprocating centrifugal volute ✅ The correct answer is option A.
216. Which of the following is not an ore of uranium ? Pitchblende Kyanite Carnotite Rescolite ✅ The correct answer is option B.
217. The atomic number of an element is equal to the number of __________ present in its atom. neutrons electrons protons either (b) or (c) ✅ The correct answer is option D.
218. Net efficiency of ordinary light water cooled nuclear reactor is about __________ percent. 32 52 72 88 ✅ The correct answer is option A.
219. Nuclear fuel complex, Hyderabad is engaged in the job of manufacture of nuclear fuel elements/assemblies . processing of uranium ore. treatment of spent fuel. none of these. ✅ The correct answer is option A.
220. An electron has a mass that is approximately __________ that of the proton. 1836 (approximately) 1/1836 (approximately) 1 ∞ ✅ The correct answer is option B.