This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Environment > Nuclear Energy – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nuclear Energy Quiz 7 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Radioactive materials have unstable ..... A) Electrons. B) Neutrons. C) Nuclei. D) Protons. Show Answer Correct Answer: C) Nuclei. 2. What is the charge of the neutron? A) Electrical charge. B) Neutral (no charge). C) Negative. D) Positive. Show Answer Correct Answer: B) Neutral (no charge). 3. A nuclear reactor, or power plant, is a series of machines that can control nuclear ..... to produce electricity. A) Power plants. B) Fission. C) Smoke. D) Energy. Show Answer Correct Answer: B) Fission. 4. What is a CON about nuclear energy? A) It causes global warming. B) It generates hazardous waste that can get people sick. C) Both of these are true. D) None of above. Show Answer Correct Answer: B) It generates hazardous waste that can get people sick. 5. How does nuclear fusion compare to nuclear fission? A) Nuclear fusion produces no radioactive waste. B) Nuclear fusion produces more radioactive waste. C) Nuclear fusion is cheaper and easier to produce. D) Nuclear fusion requires rare, expensive elements to work. Show Answer Correct Answer: A) Nuclear fusion produces no radioactive waste. 6. A series of ongoing fission reactions is known as? A) Chain Saw. B) Chain Reaction. C) Chain Link. D) Chain Lock. Show Answer Correct Answer: B) Chain Reaction. 7. Most of nuclear power plants rely on which of the following reactions to generate energy? A) Fission. B) Fusion. C) Fusion or fission. D) Half-life. Show Answer Correct Answer: A) Fission. 8. What ethical issue does the author raise in the "Yes" response? A) Cutting energy costs. B) Protecting the environment. C) Creating convenient energy sources. D) Finding an alternative to cars. Show Answer Correct Answer: B) Protecting the environment. 9. A radioactive isotope has a half life of 30 years. At year 0, there are 400 radioactive atoms. How many are left after 120 years of decay? A) 25 atoms. B) 50 atoms. C) 30 atoms. D) 12.5 atoms. Show Answer Correct Answer: A) 25 atoms. 10. What is radioactivity? A) A term that describes the forces that hold atomic nuclei together. B) The emission of high-energy particles or waves from atoms. C) The application of heat energy to an atomic nucleus. D) The movement of electrons around an atomic nucleus. Show Answer Correct Answer: B) The emission of high-energy particles or waves from atoms. 11. Has a mass of 4 and a charge of +2 A) Alpha. B) Beta. C) Gamma. D) None of above. Show Answer Correct Answer: A) Alpha. 12. What is a fission reaction? A) The process of changing the physical arrangement ofparticles. B) The process of combining nuclei to form a larger nucleus. C) The process of combining atoms together into a molecule. D) The process of splitting the nucleus of an atom. Show Answer Correct Answer: D) The process of splitting the nucleus of an atom. 13. Finish this equation ..... $\rightarrow$$^{137}$$_{56}$ Ba + $^{0}$$_{-1}$ e A) $^{137}$$_{55}$Cs. B) $^{138}$$_{56}$Ba. C) $^{137}$$_{55}$Ba. D) $^{137}$$_{57}$La. Show Answer Correct Answer: A) $^{137}$$_{55}$Cs. 14. What element is often used in nuclear reactions? A) Hydrogen. B) Oxygen. C) Uranium. D) Mercury. Show Answer Correct Answer: C) Uranium. 15. One of the elements used in generating nuclear power is ..... A) Carbon. B) Uranium. C) Aluminum. D) None of above. Show Answer Correct Answer: B) Uranium. 16. Which of these statements is NOT true? A) In a nuclear reaction, some of the mass is converted to energy. B) The forces holding the nucleus together are much stronger than the forces binding electrons to atoms. C) Nuclear reactions release more energy than chemical reactions. D) In a chemical reaction, some of the mass is converted to energy. Show Answer Correct Answer: D) In a chemical reaction, some of the mass is converted to energy. 17. City in the Ukraine that was evacuated in the year 1986 because of an explosion in one of the nuclear reactors. A) Chernobyl. B) Fukushima. C) Baltimore. D) Waianae. Show Answer Correct Answer: A) Chernobyl. 18. Nuclear energy uses ..... to turn turbines to power a generator. A) Water. B) Steam. C) Solar. D) Wind. Show Answer Correct Answer: B) Steam. 19. An advantage of nuclear energy is that ..... A) It reduces energy and pollution generated from fossil fuels. B) It can produce gases that produce mustard. C) It can be made into a delicious cake. D) It can be used to create magic potions that make you grow taller and climb walls like a spider. Show Answer Correct Answer: A) It reduces energy and pollution generated from fossil fuels. 20. Below are steps for safety precautions when handling radioactive substance except A) Use thong. B) Wear earplug. C) Wear Safety badge. D) Safety clothing like gloves, lab coats. Show Answer Correct Answer: B) Wear earplug. 21. What are two common types of thermal reactors in the U.S.? A) Pressurized water reactor, reactor steam reactor. B) Boiling water reactor, pressurized steam reactor. C) Boiling water reactor, reactor vessel reactor. D) Boiling water reactor, pressurized water reactor. Show Answer Correct Answer: D) Boiling water reactor, pressurized water reactor. 22. Iodine-131 is a radioactive isotope with a half-life of 8 days. How many grams of a 64 g sample of Iodine-131 will remain at the end of 24 days? A) 56 g. B) 32 g. C) 8 g. D) 48 g. Show Answer Correct Answer: C) 8 g. 23. What happens to an isotope when its mass becomes too large and unstable? A) It begins to emit radioactive energy, which can cause a fission reaction. B) It begins to release compounds such as CO$_{2}$. C) It begins to add protons in order to balance out the nucleus' mass. D) It beings to emit only an electron because electrons are the largest subatomic particle. Show Answer Correct Answer: A) It begins to emit radioactive energy, which can cause a fission reaction. 24. 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. 25. The process where one neutron hits a nuclei, which causes it to split releasing more neutrons which hit more nuclei causing more more neutrons to be released which hit more nuclei and so for and so on is called what? A) Fusion. B) Hydrogen bomb. C) Chain reaction. D) None of above. Show Answer Correct Answer: C) Chain reaction. 26. An isotope is the same element with a different number of .....? A) Neutrons. B) Electrons. C) Alpha particle. D) Protons. Show Answer Correct Answer: A) Neutrons. 27. The major drawback to nuclear fission reactors is ..... A) The safe disposal of the radioactive waste. B) Finding large water sources to support the nuclear reactors. C) The pollution that is produced by the power plants. D) Mining the fossil fuels is dangerous for miners. Show Answer Correct Answer: A) The safe disposal of the radioactive waste. 28. Why have scientists not begun to try and use fusion on Earth? A) Fusion requires too large of a power plant. B) Fusion requires extremely hot temperatures that are not possible on Earth. C) Fusion requires extremely cold temperatures not possible on Earth. D) Fusion requires too much oxygen that we could not survive. Show Answer Correct Answer: B) Fusion requires extremely hot temperatures that are not possible on Earth. 29. Nuclear energy generates ..... waste instead of ..... A) Air pollutants, ash. B) Radioactive, air pollutants. C) CO2, uranium ore. D) Radioactive, uranium ore. Show Answer Correct Answer: B) Radioactive, air pollutants. 30. Which of the following components of an atom is most important for isotopes? A) Electrons. B) Protons. C) Neutrons. D) None of above. Show Answer Correct Answer: C) Neutrons. ← PreviousNext →Related QuizzesPaper 1 QuizzesUgc Net QuizzesNuclear Energy Quiz 1Nuclear Energy Quiz 2Nuclear Energy Quiz 3Nuclear Energy Quiz 4Nuclear Energy Quiz 5Nuclear Energy Quiz 6Nuclear Energy Quiz 8Nuclear Energy Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books