【Daily Question 2019】Hydrogen production and hydrogenation section – Question No. 4-21
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【Daily Question 2019】Hydrogen production and hydrogenation section – Question No. 4-21: What happens to heat exchangers when they are not in use? Weekend easy question A. Stop the hot stream first, then the cold stream. B. Stop the cold stream first, then the hot stream. C. Stop both the hot and cold streams at the same time. 1 (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below
B. Stop the cold flow first, then the hot flow