【Daily Question】6.4 Choosing a Container

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This post was last edited by Zaza Ya on 2015-6-5 09:51. In order to increase the popularity of the container section, an \"One Question per Day\" activity was launched under the guidance of the leaders, aiming to foster active technical exchanges while also providing financial rewards to users. The correct statements regarding pressure vessels are (B C). For welding Class II containers, high-hydrogen electrodes (low-hydrogen electrodes) should be used. b In locations where single-sided welding results in double-sided formation, TIG welding can be used as a backing process. c When considering the design life of a container, the cost of constructing it needs to be taken into account. d Heat treatment may be omitted if the head manufacturer ensures that the properties of the material after cold forming meet the design and operational requirements (with the consent of the design team). e All of the above. Reply with the answer you think is correct; participating in the quiz earns +1 wealth point (wealth points are added automatically according to the rules). If your answer is incorrect, no additional points or feedback will be given. Answering all questions correctly earns an extra +3 wealth points. If you provide a detailed explanation or analysis of the questions and answers, you will receive additional wealth points as a reward. If your answer is correct and your explanation is accurate, it will be marked as the best reply (the best assistance). Feel free to answer; please do not reply repeatedly ； If a, b, c, and d are all correct, choose e; answering a, b, c, d, e will result in no points. Note: We will close this post after 24 hours to announce the answers and explanations, as well as the best response (the best help). Charisma Reward: If you post a topic in this section within two days to provide a detailed explanation of the knowledge points covered in this question, please reply to this post to inform us, and we will have a moderator grant you +Charisma. It is not allowed to simply copy and paste; original content is preferred, with at least some organization by the user along with personal insights and opinions. After registration, we will rank participants based on the content of their posts: the last-place participant will receive +1 charm point, the second-to-last participant +2 charm points, and so on, with the highest score earning +5 charm points. http://bbs.hcbbs.com/thread-1381938-1-1.html Inviting friends to join earns wealth. http://bbs.hcbbs.com/thread-1389197-1-1.html Seeking manufacturer sponsorship