【Daily Question】2015.06.19 Welding and Splicing (2 wealth points for a reply; +3–8 additional wealth points if the answer is correct)

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This post was last edited by zzhaichuan on 2015-6-19 at 11:09. The Machinery Section has introduced the \"One Question per Day\" feature, which not only helps to foster an active atmosphere for technical exchanges and guide the direction of such exchanges, but also provides users with financial rewards to enable them to experience various cool features. Question: Which of the following components are not allowed to be joined by welding? () a、 End cap ； b、Spherical shell plate ； c、tube sheet ； d. Heat exchange tube. Answer: b. Reference: Regulation 3.14.1. Please note: We will close this thread after 24 hours, and at that time we will announce the best response (the most helpful answer), along with the correct answer and its explanation. Charisma Reward: If you post a topic in this section within two days to provide a detailed explanation or discussion of the knowledge points related to this question, please reply/comments in this post to let us know, and we will have a moderator award you charisma points. 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, the second-to-last +2 charm, and so on, with the highest score earning +5 charm. http://bbs.hcbbs.com/thread-1381938-1-1.html Earning wealth by inviting friends http://bbs.hcbbs.com/thread-1389240-1-1.html [Mechanical Section] Collection of essential knowledge 【Seeking manufacturer sponsorship】 (long-term campaign)