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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. |
Q41 ⇒ Specific gravity of uranium and plutonium is about 19 [other wrong options] [Discuss in forum] 9 13 27 |
Q42 ⇒ Which is a fertile nuclear fuel ? Th-232 [other wrong options] [Discuss in forum] U-233 U-235 Pu-239 |
Q43 ⇒ Graphite is used in nuclear reactor as retarder of neutron velocity. [other wrong options] [Discuss in forum] insulation lining of the reactor. fuel. lubricant. |
Q44 ⇒ Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of __________ percent of U-235 (i.e. fissile material). 85 [other wrong options] [Discuss in forum] 15 45 65 |
Q45 ⇒ Uranium ore is currently mined & concentrated at Jadugoda [other wrong options] [Discuss in forum] Ghatsila Khetri Alwaye |
Q46 ⇒ Which of the following is artificially produced as it does not occur in nature ? Both (b) and (c) [other wrong options] [Discuss in forum] Uranium-235 Uranium-233 Plutonium-239 |
Q47 ⇒ Which of the following may not need a control rod ? None of these. [other wrong options] [Discuss in forum] Liquid metal cooled reactor. Fast breeder reactor. Candu reactor. |
Q48 ⇒ A nuclear reactor can't be used for none of these. [other wrong options] [Discuss in forum] the production of radioisotopes. supplying intense fields or beams of neutron for scientific experiments. marine ship propulsion. |
Q49 ⇒ Which is the most commonly used molten metal for cooling of nuclear reactors ? Sodium [other wrong options] [Discuss in forum] Calcium Mercury Zinc |
Q50 ⇒ Hydrogen bomb employs the nuclear fusion of deuterium [other wrong options] [Discuss in forum] hydrogen tritium helium |
Q51 ⇒ The amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be __________ percent. 6.25 [other wrong options] [Discuss in forum] 3.125 12.5 25 |
Q52 ⇒ Energy produced in the nuclear fission is of the order of __________ MeV. 200 [other wrong options] [Discuss in forum] 20 1000 2000 |
Q53 ⇒ Moderating material used in a thermal-reactor should be a poor absorber of neutrons. [other wrong options] [Discuss in forum] good absorber of neutrons. solid substance. none of these. |
Q54 ⇒ Pick out the correct statement. The radius of nucleus & atomic size are of the order of 10-12 cm & 10-8 cm respectively. [other wrong options] [Discuss in forum] Loss of electrons from neutral atoms produces negative ions. Gain of electrons by neutral atoms form cations. Proton to neutron ratio in a stable nucleus is 2 : 1. |
Q55 ⇒ Which one is the radioactive isotope of hydrogen ? Tritium [other wrong options] [Discuss in forum] Deuterium Ortho-hydrogen None of these |
Q56 ⇒ The atomic mass of an element is fractional, because it may have isotopes. [other wrong options] [Discuss in forum] of uncertainty principle. it may have isobars. it contains neutrons. |
Q57 ⇒ Tarapur atomic power station all (a), (b) and (c). [other wrong options] [Discuss in forum] has two boiling water reactors of American design. has an installed capacity of 400 MW. is the first power reactor in India, which became critical in 1969. |
Q58 ⇒ Uranium is recovered from its ore (pitchblende) by leaching with sulphuric acid. [other wrong options] [Discuss in forum] froth floatation technique. smelting in a furnace. dissolving in water. |
Q59 ⇒ Which is not a fissile nuclear material ? U-238 [other wrong options] [Discuss in forum] U-233 U-235 Pu-239 |
Q60 ⇒ The phenomenon of nuclear fission is opposite to that of nuclear fusion [other wrong options] [Discuss in forum] radioactive decay thermionic emission combustion |
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