【Daily Question】【AC Version for Static Equipment...Question 53】February 22, 2019 – True/False Question...Everything is going well

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This post was last edited by kareale88 on 2019-2-22 at 20:31: bg14.jpg【Daily Question】【AC version for static equipment...Question 53】 February 22, 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! ........................................................................... 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 participants via Haichuan’s official WeChat account are eligible! For more details, please see the link below: https://bbs.hcbbs.com/thread-2281360-1-1.html. A big thank you to all my supporters from the region—voters on the 28th (@泡沫_ZPTK), 29th (@kareale88), 30th (@亚梅), and 31st (@梦幻100). After voting, you can participate in a lottery for prizes such as laptops, HaiChuan Cup awards, phone credit, and 100 Wealth points... There are 10 chances to win per day for every 10 votes cast... Hurry up and participate! ...........................................................................1. Advantages of hemispherical heads ( ). A. The hemispherical head experiences uniform stress, resulting in a smaller required thickness and thus material savings ； B. Hemispherical end caps have few manufacturing limitations, allowing for the production of end caps of larger sizes ； C. The hemispherical head requires less thinning during manufacturing, which allows for a reduced design thickness ； D. All of the above. ---------------------2. For tower-type vessels, considering factors such as manufacturing and economic viability, different wall thickness sections should not exceed ( ) sections (excluding the skirt shell). A、2B、3C、4D、5---------------------3. The semi-cone apex angle θ of the conical skirt shell should not exceed 15 degrees, and the nominal thickness of the skirt shell should not be less than 6 mm. ( ) A. Correct B. Incorrect --------------------- Correct answers: 1. D 2. D 3. A 1. Comment: This question tests the characteristics of hemispherical end caps. 2. Comments: SH/T3098-2011, page 9, 6.2.10 a). 3. Comments: Clause 6.2.1 of NB/T47041-2014 for towers.