This quiz works best with JavaScript enabled. Home > Science > Physics > Nuclear Science – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nuclear Science Quiz 8 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is a benefit of nuclear fission? A) The ability to absorb energy. B) The ability to release tremendous amounts of energy. C) The ability to produce more energy than nuclear fusion. D) There are no beneficial aspects of nuclear fission. Show Answer Correct Answer: B) The ability to release tremendous amounts of energy. 2. Minimum energy required to pull nucleus apart is called A) Electron affinity. B) Binding energy. C) Chemical energy. D) Ionization energy. Show Answer Correct Answer: B) Binding energy. 3. The function of moderators in nuclear reactor is to A) Control the chain reaction. B) Absorb the secondary neutrons. C) Slow down the secondary neutrons. D) None of these. Show Answer Correct Answer: C) Slow down the secondary neutrons. 4. Nuclear Power uses ..... to create energy A) Coal. B) Natural gas. C) Uranium. D) Cooling towers. Show Answer Correct Answer: C) Uranium. 5. What is the Half-Life of Carbon 14 A) 8, 740 Years. B) 3, 689 Years. C) 5, 730 Years. D) 2, 165 Years. Show Answer Correct Answer: C) 5, 730 Years. 6. Atoms of U-238 and U-235 differ in structure by three A) Protons. B) Electrons. C) Neutrons. D) Electrons and three protons. Show Answer Correct Answer: C) Neutrons. 7. Unit of radioactivity is A) Barn. B) Curie. C) Fermi. D) Angstrom. Show Answer Correct Answer: B) Curie. 8. The time required for half of the ..... of a radioactive isotope to decay is called its half life. A) Nuclei. B) Protons. C) Neutrons. D) Electrons. Show Answer Correct Answer: A) Nuclei. 9. What type of radiation has a negligible mass and consists of high energy radiation? A) Alpha. B) Beta. C) Gamma. D) All of the above. Show Answer Correct Answer: C) Gamma. 10. Pick out the wrong statement. A) Positron is heavier than a proton. B) A, $\beta$-ray particle is identical with an electron. C) The nucleus of a hydrogen atom is identical with a proton. D) Mass of an electron is about 1/1800th of the lightest nucleus. Show Answer Correct Answer: A) Positron is heavier than a proton. 11. Protons and Neutrons are called ..... A) Nucleus. B) Nucleons. C) Nuclei. D) None of above. Show Answer Correct Answer: B) Nucleons. 12. ..... nuclear reactor does not require a heat exchanger to supply steam to power turbine. A) Boiling water. B) Helium cooled. C) Pressurised water. D) Molten sodium cooled. Show Answer Correct Answer: A) Boiling water. 13. Which is the most commonly used molten metal for cooling of nuclear reactors? A) Zinc. B) Sodium. C) Calcium. D) Mercury. Show Answer Correct Answer: B) Sodium. 14. Emission of $\beta$-particles during radioactive decay of a substance is from A) Nucleus. B) Innermost shell. C) Outermost shell. D) None of these. Show Answer Correct Answer: A) Nucleus. 15. Which of the following may not need a moderator? A) Candu reactor. B) Fast breeder reactor. C) Homogeneous reactor. D) Pressurised water reactor. Show Answer Correct Answer: B) Fast breeder reactor. 16. The second underground nuclear test was conducted by India at A) Narora. B) Pokhran. C) Jaisalmer. D) Kalpakkan. Show Answer Correct Answer: B) Pokhran. 17. Which of the following terms best describes the byproducts of nuclear power? A) Harmless. B) Hazardous. C) Nonexistent. D) Useful. Show Answer Correct Answer: B) Hazardous. 18. Geiger's law can be expressed in the form A) R = bE3/2. B) R = bE4/2. C) R = bE5/2. D) R = bE6/2. Show Answer Correct Answer: A) R = bE3/2. 19. An electron has a mass that is approximately ..... that of the proton. A) 1. B) $\infty$. C) 1836 (approximately). D) 1/1836 (approximately). Show Answer Correct Answer: D) 1/1836 (approximately). 20. Finish the equation22688Ra $\rightarrow$ ..... + 22688Ra A) 42He. B) 0-1e. C) Y. D) None of above. Show Answer Correct Answer: C) Y. ← PreviousNext →Related QuizzesScience QuizzesNuclear Science Quiz 1Nuclear Science Quiz 2Nuclear Science Quiz 3Nuclear Science Quiz 4Nuclear Science Quiz 5Nuclear Science Quiz 6Nuclear Science Quiz 7Nuclear Science Quiz 9Nuclear Science Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books