【Daily Question】【AC Version for Static Equipment...Question 45】February 14, 2019 – True/False Question...Everything is going well

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This post was last edited by kareale88 on 2019-2-15 at 11:18: bg14.jpg【Daily Question】【AC version for static equipment...Question 45】 February 14, 2019 – True or False question...Everything is going well............................................................................Wishes to all friends in Haichuan: happiness every year, a harmonious family, good fortune, smooth affairs and good health, and success throughout life! ........................................................................... Please fill in the answers (multiple choice, single choice, single choice) 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 participants via Haichuan’s official WeChat account are eligible! 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. The difference between the pressure-area reinforcement method and the equal-area reinforcement method lies in the effective reinforcement range of the shell: in the former case, it is the stress attenuation range of a cylindrical shell (), while in the latter case, it is the stress attenuation range of a uniformly stretched () shell. A. Circumferential film ； B. Circumferential bending ； C. Axial film ； D. Axial bending ； E. Edge of large hole in flat plate ； F. Edge of the small hole in the flat plate. ---------------------2. GB12337-2014 is applicable to spherical tanks with a design pressure not exceeding (). A. 10 MPa B. 6.4 MPa C. 4 MPa D. 1 MPa ---------------------3. High-alloy steel pipes specified in GB/T14976 and GB/T12771 can be used as heat exchange tubes in shell-and-tube heat exchangers. （）A、Correct B、Incorrect---------------------Answers: 1. A F 2. B 3. B 1. Comment: This question tests the reinforcement calculation method for the 7 types of openings specified in HG/T20582-2011, namely the pressure area reinforcement method. 2. Comments: The scope of application for steel spherical storage tanks as specified in GB GB12337-2014 (has been expanded compared to the 1988 version). 3. Comments: Knowledge on high-alloy steel pipes in 5.2 of GB150.2.