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Nuclear power engineering
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q1 ⇒ Which of the following is the best nuclear fuel? Pu-239 [other wrong options] [Discuss in forum] ![]() ![]() Np- 239 U-234 Th-236 |
Q2 ⇒ An ideal coolant for a nuclear reactor should be free from radiation damage and non-corrosive. [other wrong options] [Discuss in forum] ![]() ![]() be a good absorber of neutrons. be capable of attaining high temperature, only when it is pressurised. have high density, but low heat transfer co-efficient. |
Q3 ⇒ Plutonium both (a) and (b). [other wrong options] [Discuss in forum] ![]() ![]() is recovered from spent fuel from thermal nuclear reactor. has much lower melting point (640°C ) compared to thorium (1690°C). neither (a) nor (b). |
Q4 ⇒ In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous uranium hexaflouride [other wrong options] [Discuss in forum] ![]() ![]() uranium oxide uranium carbide uranium sulphate |
Q5 ⇒ Heavy water has maximum density at __________ °C. 11.6 [other wrong options] [Discuss in forum] ![]() ![]() 4 0 18.6 |
Q6 ⇒ β-rays emission in radioactive disintegration is always accompanied by the emission of γ-rays [other wrong options] [Discuss in forum] ![]() ![]() α-rays neutrons none of these |
Q7 ⇒ Thorium-232 (a fertile material) on absorption of a neutron gets converted into __________ , which is a fissile material. uranium-233 [other wrong options] [Discuss in forum] ![]() ![]() thorium-233 uranium-235 plutonium-239 |
Q8 ⇒ Main source of __________ is monazite sand. thorium [other wrong options] [Discuss in forum] ![]() ![]() uranium polonium hafnium |
Q9 ⇒ Fast breeder reactors are most usable in India, because of our largest __________ deposits. thorium [other wrong options] [Discuss in forum] ![]() ![]() plutonium uranium none of these |
Q10 ⇒ H2 is a better coolant than CO2, due to its relatively higher specific heat. [other wrong options] [Discuss in forum] ![]() ![]() lower density. non-reactivity to uranium. lower neutron capture cross-section. |
Q11 ⇒ What is the average life of a radioactive atom having a 'half life period' of T ? 1.44 T [other wrong options] [Discuss in forum] ![]() ![]() 0.144 T 14.4 T 2T |
Q12 ⇒ An element having large number of __________ is most easily subjected to nuclear fission. nucleons [other wrong options] [Discuss in forum] ![]() ![]() protons electrons neutrons |
Q13 ⇒ Thermal nuclear reactors using enriched uranium as fuel contains a maximum of __________ percent fissile material i.e. U-235. 3 [other wrong options] [Discuss in forum] ![]() ![]() 1 2 7 |
Q14 ⇒ A moderator __________ the neutrons. slows down [other wrong options] [Discuss in forum] ![]() ![]() absorbs accelerates reflects |
Q15 ⇒ The velocity of thermal (slow) neutrons triggering nuclear fission reaction (having energy equal to 0.025 eV) is about __________ metres/second. 2200 [other wrong options] [Discuss in forum] ![]() ![]() 1100 3300 4400 |
Q16 ⇒ The most commonly used nuclear fuel in boiling water reactor is enriched uranium [other wrong options] [Discuss in forum] ![]() ![]() natural uranium plutonium monazite sand |
Q17 ⇒ A fast breeder reactor employs U-235 as fuel. [other wrong options] [Discuss in forum] ![]() ![]() graphite as moderator. water as coolant. molten sodium as coolant as well as moderator. |
Q18 ⇒ An electron has a mass that is approximately __________ that of the proton. 1/1836 (approximately) [other wrong options] [Discuss in forum] ![]() ![]() 1836 (approximately) 1 ∞ |
Q19 ⇒ Which of the following may not need a moderator ? Fast breeder reactor [other wrong options] [Discuss in forum] ![]() ![]() Candu reactor Homogeneous reactor Pressurised water reactor |
Q20 ⇒ Which is used as a coolant in nuclear reactor due to its high capture cross-section ? H2 [other wrong options] [Discuss in forum] ![]() ![]() N2 He CO2 |
Or |