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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. |
Q21 ⇒ Final product of uranium extraction plant at Jadugoda (Bihar) is magnesium diuranate [other wrong options] [Discuss in forum] uranium uranium oxide uranium carbide |
Q22 ⇒ Fast breeder Test Reactor (FBTR) is located at Kalpakkam (near Madras). [other wrong options] [Discuss in forum] Kota (in Rajasthan). BARC (Trombay). Tarapur (in Maharashtra). |
Q23 ⇒ Heavy water plant is not located at Ramagundam [other wrong options] [Discuss in forum] Talcher Tuticorin Kota |
Q24 ⇒ The sum of masses of two nuclei produced in nuclear fission compared to the mass of original nucleus is less [other wrong options] [Discuss in forum] more same much more |
Q25 ⇒ The phenomenon of radioactivity was discovered by Bacquerrel [other wrong options] [Discuss in forum] Madam Curie Roentgen J.J. Thomson |
Q26 ⇒ Nuclear power plant is not located at Talcher (Orissa) [other wrong options] [Discuss in forum] Rawatbhata (Rajasthan) Kalpakkam (Tamilnadu) Kaiga (Karnataka) |
Q27 ⇒ In a pressurised water reactor (PWR), the coolant water is pressurised to prevent bulk boiling of water in the core. [other wrong options] [Discuss in forum] fuel is natural uranium and heavy water acts both as moderator & coolant. coolant water boils in the core of the reactor. use of moderator is not required. |
Q28 ⇒ The emission of an a-particle causes the resultant nucleus to have more atomic weight and less atomic number. [other wrong options] [Discuss in forum] less atomic weight and less atomic number. less atomic weight and more atomic number. none of these. |
Q29 ⇒ The radioisotope used to study the thyroid gland is iodine [other wrong options] [Discuss in forum] cobalt iron carbon |
Q30 ⇒ Isotopes of an element have different mass number [other wrong options] [Discuss in forum] electronic configuration nuclear charge chemical properties |
Q31 ⇒ Uranium percentage in monazite sand is about 0.25 [other wrong options] [Discuss in forum] 0.01 1.2 7 |
Q32 ⇒ Heavy water plant is not located at Korba [other wrong options] [Discuss in forum] Kota and Baroda Talcher (Orissa) Tuticorin(Tamilnadu) |
Q33 ⇒ Indian monazite sand contains __________ percent thorium. 10 [other wrong options] [Discuss in forum] 25 60 90 |
Q34 ⇒ In β-decay of radioactive material, the ratio of neutron to proton decreases. [other wrong options] [Discuss in forum] increases. remains same. is unpredictable; may increase or decrease. |
Q35 ⇒ Which of the following nuclear materials is fissile ? Plutonium-239 [other wrong options] [Discuss in forum] Uranium-238 Thorium-232 None of these |
Q36 ⇒ Unit of radioactivity is curie [other wrong options] [Discuss in forum] barn fermi angstrom |
Q37 ⇒ A fast breeder reactor all (a), (b) and (c). [other wrong options] [Discuss in forum] utilises fast neutrons for causing fission. converts fertile material (e.g., U-238) into fissile material (Pu-239). normally employs molten sodium as coolant. |
Q38 ⇒ Which of the following is not an ore of uranium ? Kyanite [other wrong options] [Discuss in forum] Pitchblende Carnotite Rescolite |
Q39 ⇒ Pick out the wrong statement. Gamma rays are high energy electrons. [other wrong options] [Discuss in forum] The ratio of the density of the 'nucleus' to that of the 'atom' is 1012 . α-particle is identical with a doubly charged helium ion. The mass of deuterium atom is half that of helium atom. |
Q40 ⇒ Pressure of CO2 gas (which is a coolant) in the Calder-Hall nuclear reactor is __________ kgf/cm2 . 7 [other wrong options] [Discuss in forum] 0.2 35 50 |
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