This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Environment > Nuclear Energy – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nuclear Energy Quiz 5 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What isotope of Uranium is used in nuclear reactors? A) U-2. B) U-235. C) U-90. D) U-532. Show Answer Correct Answer: B) U-235. 2. When does a nuclear power plant create energy? A) When uranium is added. B) When heat is added. C) When water is added. D) When steam turns a turbine. Show Answer Correct Answer: D) When steam turns a turbine. 3. The total amount of waste produced by 435 nuclear power plants worldwide per year is equivalent to ..... A) 5 olympic swimming pool. B) 100 olympic swimming pools. C) 1 olympic swimming pool. D) 10 olympic swimming pools. Show Answer Correct Answer: A) 5 olympic swimming pool. 4. Which process do hydrogen atoms use to make the Sun's energy? A) Nuclear fission. B) Nuclear fusion. C) Nuclear isotope. D) Nuclear meltdown. Show Answer Correct Answer: B) Nuclear fusion. 5. Which of the following is a negative of nuclear energy? A) Nuclear power plants are expensive to build. B) It produces a lot of energy. C) It emits carbon dioxide. D) None of above. Show Answer Correct Answer: A) Nuclear power plants are expensive to build. 6. The rate at which a radioactive element decays is its ..... A) Quarter life. B) Whole life. C) Half life. D) Wonderful life. Show Answer Correct Answer: C) Half life. 7. The word repository in paragraph 9 means A) A place to put things. B) Something hidden for safekeeping. C) One who acts on behalf of another. D) An electrical outlet for a plug. Show Answer Correct Answer: A) A place to put things. 8. What type of nuclear reaction occurs in the Sun? A) Nuclear fission. B) Nuclear fusion. C) Alpha decay. D) Beta decay. Show Answer Correct Answer: B) Nuclear fusion. 9. Which is NOT a disadvantage of using nuclear energy? A) Radioactive waste disposal. B) Reactor accidents. C) Possible terrorist use of nuclear weapons. D) The amount of CO2 released by the reactors. E) Mining uranium. Show Answer Correct Answer: D) The amount of CO2 released by the reactors. 10. How are spent nuclear fuel rods disposed? A) Burying them in a community landfill. B) Storing them in a deep pool of water. C) Burying them at the reactor site. D) Releasing them into the air. Show Answer Correct Answer: B) Storing them in a deep pool of water. 11. The % of the parent isotope remaining after 1 Half Life. A) 50%. B) 25%. C) 12.5%. D) 6.25%. Show Answer Correct Answer: A) 50%. 12. The combining of 2 nuclei to form a larger nucleus is called ..... A) Fusion. B) Compounds. C) Radioactive waste. D) Fission. Show Answer Correct Answer: A) Fusion. 13. Where does nuclear fission happen? A) In the sun. B) In the moon. C) At nuclear power plants. D) All of the above. Show Answer Correct Answer: C) At nuclear power plants. 14. Nuclear Power uses ..... to create energy A) Natural gas. B) Coal. C) Uranium. D) Cooling towers. Show Answer Correct Answer: C) Uranium. 15. In a nuclear reactor, atoms of uranium are forced to ..... A) Explode. B) Break apart. C) Join together. D) Multiply. Show Answer Correct Answer: B) Break apart. 16. The time needed for half of a radioactive sample to decay is called its ..... A) Half-life. B) Transmutation time. C) Period. D) Decay period. Show Answer Correct Answer: A) Half-life. 17. Element X decays to element Y with a half-life of 5 years. After 15 years, how many half-lives have passed? A) 4. B) 1. C) 3. D) 2. Show Answer Correct Answer: C) 3. 18. What did the meltdown at Chernobyl release into the air? A) The Kracken. B) Radioactive dust. C) Bees!. D) The Hounds. Show Answer Correct Answer: B) Radioactive dust. 19. What happens in a chain reaction? A) An isotope that releases several million times more energy per reaction than compared to a chemical reaction. B) An isotope that reacts to a nuclear explosion from an atomic bomb. C) Same element, different mass. D) Various isotopes exploding at all once. Show Answer Correct Answer: A) An isotope that releases several million times more energy per reaction than compared to a chemical reaction. 20. The nuclear process occurring at a nuclear power plant. A) Nuclear fusion. B) Nuclear fission. C) Combustion. D) Multiplication. Show Answer Correct Answer: B) Nuclear fission. 21. One concern in the U.S. regarding increased use of nuclear energy throughout the world, including in a broad range of developing countries is: A) Lower prices for U.S. exports of electricity. B) Increased greenhouse emissions. C) Decreased reliance on fossil fuels. D) Proliferation of nuclear material that may end up in nuclear weapons. Show Answer Correct Answer: D) Proliferation of nuclear material that may end up in nuclear weapons. 22. What are the two methods of extracting uranium? A) Deep well mining and surface mining. B) Conventional open pit and chemical processes. C) Chemical processes and surface mining. D) Conventional open pit and deep well mining. Show Answer Correct Answer: B) Conventional open pit and chemical processes. 23. Which of these is a disadvantage of using nuclear power plants? A) Not a very efficient source of energy. B) Produces dangerous radioactive waste. C) Releases a lot of CO$_{2}$ into the atmosphere. D) Only works in sunlight. Show Answer Correct Answer: B) Produces dangerous radioactive waste. 24. A radioactive atom has a ..... stable nucleus than a non-radioactive nucleus of the same element. A) More. B) Less. C) Identical. D) Small. Show Answer Correct Answer: B) Less. 25. The type of radiation that can cause mutations in human cells or DNA is called? A) Non-ionizing. B) Visible light. C) Radiowaves. D) Ionizing. Show Answer Correct Answer: D) Ionizing. 26. Which process involves the splitting of a large nucleus? A) Beta decay. B) Alpha decay. C) Nuclear fission. D) Nuclear fusion. Show Answer Correct Answer: C) Nuclear fission. 27. Which of the following results in the release of nuclear energy? A) Wind. B) Heat. C) The breaking of nuclear bonds. D) None of above. Show Answer Correct Answer: C) The breaking of nuclear bonds. 28. What percent of the energy in the world is produced by nuclear energy? A) %6.6. B) %8.3. C) %4.4. D) %7.2. Show Answer Correct Answer: C) %4.4. 29. The amount of time it takes for 1/2 the amount of any radioactive parent sample to decay into its daughter element is known as what? A) Half life. B) Chain reaction. C) Half reaction. D) U-235. Show Answer Correct Answer: A) Half life. 30. The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g? A) 3.0g. B) 0.25g. C) 0.3g. D) 0.25mg. Show Answer Correct Answer: B) 0.25g. ← PreviousNext →Related QuizzesPaper 1 QuizzesUgc Net QuizzesNuclear Energy Quiz 1Nuclear Energy Quiz 2Nuclear Energy Quiz 3Nuclear Energy Quiz 4Nuclear Energy Quiz 6Nuclear Energy Quiz 7Nuclear Energy Quiz 8Nuclear Energy Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books