【Daily Question】【AC Version for Static Equipment...Question 34】February 3, 2019 – True/False Multiple Choice...Thank you for voting

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This post was last edited by kareale88 on 2019-2-3 20:53: bg4.png【Daily Question】【Static Equipment Discussion Forum...Question 34】 February 3, 2019 – True or False questions... Thank you for voting. Around the end of the year, in order to reduce the stress associated with answering questions, these have been changed to true or false questions; please enter the answers in order. Reward rules: 5 wealth points for participation, 10 wealth points for answering more than 2 questions correctly. This offer is valid for the current month. ........................................................................... Final voting stage for the 2018 “Top 10 Outstanding Members of Haichuan” – only participants via Haichuan’s official WeChat account are eligible! For more details, please visit the link below: https://bbs.hcbbs.com/thread-2281360-1-1.html. I am extremely grateful to my fellow users who support me – vote for number 29. After voting, there will be drawings for prizes such as laptops, Haichuan cups, phone credit, and 100 wealth points... 10 votes = 10 drawing opportunities per day... Hurry up and participate! ........................................................................... 1. When working with flammable materials in workshops or facilities, firework use is allowed only with the approval of the workshop supervisor. ( ) A. Correct B. Incorrect --------------------- 2. Oxidation reactions require heating, and heat is released during these reactions; moreover, most of the substances that are oxidized are explosive. If the material ratios are not correct or temperature control is inadequate, explosions can occur. （） A. Correct B. Incorrect --------------------- 3. An explosive medium refers to a substance that is formed when the vapor or mist of its gas or liquid mixes with air, and whose lower explosion limit is ≤10%, or whose difference between the upper and lower explosion limits is ≥20%. ( ) A. Correct B. Incorrect ---------------------Hint: When carrying out welding or similar operations in workshops or areas where flammable materials are present, it is necessary to go through the proper procedures for such work, and there must be someone on site to supervise the process. Explosive lower limit: 10%. --------------------- Answers: 1. B 2. A 3. B