This quiz works best with JavaScript enabled. Home > Science > Physics > Nuclear Science – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nuclear Science Quiz 4 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The mass number of an element is not changed, when it emits ..... radiations. A) $\alpha$ & $\beta$. B) $\gamma$ & $\alpha$. C) $\beta$ & $\gamma$. D) $\alpha$, $\beta$, & $\gamma$. Show Answer Correct Answer: C) $\beta$ & $\gamma$. 2. Nuclear fusion naturally occurs in? A) The sun and stars. B) Uranium-235. C) Nuclear Power Plant. D) Earth's Core. Show Answer Correct Answer: A) The sun and stars. 3. Nuclear energy creates A) A large amount of energy. B) A small amount of energy. C) A medium amount of energy. D) None of above. Show Answer Correct Answer: A) A large amount of energy. 4. The energy resource that is most affected by change in weather is .....? A) Geothermal. B) Wind. C) Nuclear. D) Natural gas. Show Answer Correct Answer: B) Wind. 5. Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand) is A) 0.1. B) 1. C) 3. D) 12. Show Answer Correct Answer: A) 0.1. 6. Which subatomic particle is required to start a nuclear fission chain reaction? A) Electron. B) Proton. C) Neutron. D) Atom. Show Answer Correct Answer: C) Neutron. 7. Uranium pellets are an example of ..... energy. A) Chemical. B) Mechanical. C) Electrical. D) Radiant. Show Answer Correct Answer: A) Chemical. 8. Coolant present in the primary circuit of a pressurised water reactor is high pressure A) Saturated steam. B) Saturated water. C) Sub cooled water. D) Superheated steam. Show Answer Correct Answer: B) Saturated water. 9. Function of control rod in a nuclear reactor is to control A) Pressure. B) Temperature. C) Fuel consumption. D) Absorption of neutrons. Show Answer Correct Answer: D) Absorption of neutrons. 10. An example of an uncontrolled fission reaction is ..... A) Nuclear power plants. B) Radio active decay. C) Atomic Bomb. D) On the surface of the sun. Show Answer Correct Answer: C) Atomic Bomb. 11. Classical physics fails to explain the theory of ..... A) Alpha decay. B) Beta decay. C) Gamow decay. D) None of the above. Show Answer Correct Answer: A) Alpha decay. 12. The carbon isotope ..... is present in all living beings. A) C14. B) C12. C) C13. D) C15. Show Answer Correct Answer: A) C14. 13. The type of radioactive particle that can be stopped by a sheet of paper is the ..... A) Alpha particle. B) Beta particle. C) Gamma ray. D) Uranium. Show Answer Correct Answer: A) Alpha particle. 14. Nuclear fission is used to ..... A) Filter water. B) Cool water. C) Generate electricity. D) None of above. Show Answer Correct Answer: C) Generate electricity. 15. Radioactive dating ..... A) Is a way to find out how old something is. B) Is a way to find out the structure of living organisms. C) Is a way to find out the chemical reactions in plants. D) None of above. Show Answer Correct Answer: A) Is a way to find out how old something is. 16. Which is TRUE about nuclear waste? A) We use the waste for making bombs and there is no waste. B) We have no safe place to dispose of waste. C) We burn the waste. D) We dispose of the waste in the ocean. Show Answer Correct Answer: B) We have no safe place to dispose of waste. 17. Thermal neutrons which are used to cause the fission of U-235 have energy ..... eV. A) < 0.025. B) >1. C) 1-25. D) > 200. Show Answer Correct Answer: A) < 0.025. 18. What does nuclear reaction mean A) The changed caused by energy in an atom. B) A change in the number of protons or neutrons in an atom. C) The reaction of protons and neutrons being combined. D) A change in the identity or characteristics of a nucleus. Show Answer Correct Answer: D) A change in the identity or characteristics of a nucleus. 19. What is a beneficial aspect 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. 20. Fusion changes hydrogen into what? A) Helium. B) Uranium. C) U-238. D) U-235. Show Answer Correct Answer: A) Helium. ← PreviousNext →Related QuizzesScience QuizzesNuclear Science Quiz 1Nuclear Science Quiz 2Nuclear Science Quiz 3Nuclear Science Quiz 5Nuclear Science Quiz 6Nuclear Science Quiz 7Nuclear Science Quiz 8Nuclear Science Quiz 9Nuclear Science Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books