【Daily Question】 【AC Version for Static Equipment...Question 47】 February 16, 2019 – True/False Question...Everything is going well

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bg14.jpg【Daily Question】【AC Version for Static Equipment...Question 47】February 16, 2019 – True/False question...Everything is going well...........................................................................Wishes to all friends of Haichuan: happiness every year, a harmonious family, good fortune, smooth affairs and good health, and success throughout life! ........................................................................... Answers (multiple choice, multiple choice, multiple choice) please fill in in order. Reward rules: 1 wealth for participation, 3 wealth for each correct answer, up to a maximum of 10 wealth. This topic is valid for two days; no scoring will be given if it exceeds two days by 48 hours. ........................................................................... Final voting stage for the 2018 “Top 10 Outstanding Members of Haichuan” – only available via Haichuan’s official WeChat account! For more details, please visit the link below: https://bbs.hcbbs.com/thread-2281360-1-1.html. I am extremely grateful to all the users who support my region – vote for numbers 28, 29, 30, and 31. After voting, there will be drawings for prizes such as laptops, Haichuan cups, phone top-ups, and 100 wealth points... 10 votes = 10 drawing opportunities per day... Please join us quickly! ........................................................................... 1. When calculating the mass m2 of LPG-filled cylinders, the material density ρ2 that should be used is the density of the liquid at ( ). A. Room temperature ； B. Operating temperature ； C. Maximum design temperature ； D. Minimum design temperature. --------------------- 2. For spherical tanks manufactured from steel prone to delayed cracking, non-destructive testing of the welds shall be carried out at least ( ) hours after welding is completed. A.12 B.24 C. 36 D. 48 --------------------- 3. When cutting titanium, if cooling and lubrication are inadequate, the chips are prone to catching fire. ( ) A. Correct B. Incorrect --------------------- Answers: 1. D 2. C 3. A 1. Comments: Requirements for the design and calculation of LPG containers. Article 36 of the 1999 Edition of the Code of Practice. In design calculations, there are values that designers often overlook; this is a concept that designers should firmly grasp. 2. Comments: The basic provisions for the design and manufacture of steel spherical storage tanks as specified in GB GB12337-2014 can be found in 8.6.2.2. 3. Comments: The characteristics of non-ferrous metals. Although many people have no experience with them, those working in this industry as designers should have a thorough understanding of the design principles related to pressure vessels, especially the most basic ones. For this section, you can compare it with the previous and subsequent parts to see what total score it accounts for. The purpose is to inform designers that the standards for pressure vessels made of non-ferrous metals in China’s pressure vessel industry are already in effect.