【Daily Question】 【AC Version for Static Equipment...Question 67】 March 8, 2019 – Revised multiple-choice questions...Everything is going well

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bg4.png【Daily Question】 【AC Version for Static Equipment...Question 67】 March 8, 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! Wishes to my friends in Haichuan: 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 transition layer in the cladding of stainless steel surfacing tube sheets should be deposited using ultra-low carbon stainless steel electrodes or strips. ( )A、Correct ； B. Incorrect ； ---------------------2. For the welds of the sphere shell and those that are directly welded to it, low-hydrogen flux-cored electrodes should be used, and diffusion hydrogen tests should be conducted based on batch numbers. （）A、Correct ； B. Incorrect ； ---------------------3. The spherical tank can be regarded as a single-point system, and its fundamental natural vibration period is calculated. （）A、Correct B、Incorrect---------------------Answers: 1、 A 2、 A 3、 A 1、Comment: Those responsible for the surfacing design of stainless steel tube sheets often make mistakes when selecting welding electrodes; the purpose of this question is to help everyone gain a clear understanding of this issue. 2. Comments: The most basic welding requirements for spherical tanks. 3. Comments: Calculation models for spherical tanks under seismic and wind loads.