【Daily Question】【Static Equipment AC Version...Question 136】August 4, 2019 Multiple-choice question...Multiple-choice question

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bg4.png【Daily Question】【AC Version for Static Equipment...Question 136】 August 4, 2019 Multiple-choice question...Multiple-choice question...........................................................................Reward rules: 3 Wealth points for participation, 10 Wealth points for correct answers. No scoring will be given after two days, with holidays being an exception. ...........................................................................1. A urea synthesis tower made of composite plates, with a base layer of 75mm thick made of 16MnR, and an overlay layer of 5mm thick made of OOCr17Ni14Mo2. Is post-weld heat treatment required? ().a. Yes ； b. Not required ； ........................................................................... Answer: b. Comment: Heat treatment affects the intergranular corrosion resistance of cladded materials; this question assesses the designer’s ability to apply the heat treatment requirements for pressure vessels in actual design work, to identify problems and provide explanations – additional rewards are available for this.