【Daily Question】 【AC Version for Static Equipment...Question 70】 March 11, 2019 – Revised multiple-choice questions...Everything is going well

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bg4.png【Daily Question】【AC Version for Static Equipment...Question 70】 March 11, 2019 – Revised multiple-choice questions... Everything is going well........................................................................... The final voting stage for the 2018 “Top 10 Outstanding Members of Haichuan” has ended – hope you’ll be nominated for this year’s list! Wishing all my friends by the seas and rivers: happiness every year, a harmonious family life, good fortune and success, smooth affairs and good health, and prosperity 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. ........................................................................... 1. The roundness requirements for vessels under external pressure and in vacuum are stricter than those for vessels under internal pressure, mainly to prevent instability. ( ) A、Correct ； B. Incorrect ； --------------------- 2. Depending on the type, specifications, and material of the end cap, three methods can be employed: using a single plate, using assembled plates, or forming it first and then welding it together. （） A、Correct ； B. Incorrect ； --------------------- 3. The fundamental equation of the finite element method element, {F}e = {δ}e, represents the relationship between the forces at the element nodes and the displacements of those nodes. （） A、Correct B、Incorrect --------------------- Answers: 1、A 2、A 3、A 1、Comment: The basic requirements for the structure of pressure vessels are intended to help designers understand the underlying reasons behind the establishment of technical specifications, as well as to provide them with the most fundamental starting point for addressing various issues. 2. Comments: The basic manufacturing methods for end caps vary, and different technical requirements apply depending on the method used. 3. Comments: This is a question that determines the difference in scores, as it assesses the depth of understanding of the basic theories. This topic is one of the most fundamental concepts in finite element numerical analysis.