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This post was last edited by 955559 on 2017-7-21 at 22:35. [Daily Question No. 102] April 12, 2017: Corrosion of steel by hydrogen occurs most easily under （） conditions. A. High temperature and low pressure B. Low temperature and low pressure C. High temperature and high pressure D. Low temperature and high pressure. The reference answer can be seen after responding; points will be awarded as long as the key points are answered correctly. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) C grading criteria: 2 Wealth points for incorrect attempts; *incomplete* answers earn 3–8 points. 10 Wealth points are given for correct answers accompanied by detailed explanations, while answers that are correct but lack sufficient details earn 15–20 Wealth points. Please use these criteria for scoring. 2017 Q&A Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html Petrochemical Sector – “Creative Ideas for Energy Savings” campaign (sponsors sought; highest returns ever) http://bbs.hcbbs.com/thread-1666758-1-1.html Sponsors are being sought for this campaign; those interested can contact the campaign coordinator. (Sponsors of the event are entitled to the policy allowing them to include promotional ads as sponsors in various events held in the petrochemical region for one year.) The Petrochemical Deep Processing Edition – the event to share pictures of chemical processing equipment has begun! Huge amounts of wealth, as well as HChuan coins, are waiting for you to claim them: http://bbs.hcbbs.com/thread-1760733-1-1.html. Notice regarding the collection of chemical engineering technical materials in the “Petroleum and Chemicals Section”: http://bbs.hcbbs.com/thread-1614796-1-1.html (Source: HChuan Chemical Forum)