【Daily Question】 【AC Version for Static Equipment...Question 62】 March 3, 2019 Revised multiple-choice questions...Better tomorrow

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bg4.png【Daily Question】【AC Version for Static Equipment...Question 62】 March 3, 2019 Revised multiple-choice questions...Better tomorrow ............................................................. Answering rules: Single-choice answers should be entered in the blanks, one by one in order. Reward rules: 3 Wealth for participation, 3 Wealth for each correct answer, up to a maximum of 10 Wealth. Test results: Assess the degree of understanding and accuracy in grasping knowledge points and general concepts. ........................................................................... Thank you all for voting — the final voting stage for the 2018 “Top 10 Outstanding Members of HaiChuan” is now complete! Wishing all my friends by the seas and rivers: happiness every year, a harmonious family life, good fortune and success, smooth circumstances and good health, and prosperity throughout their lives! ........................................................................... 1. When the shell has a circular opening, the diameter of the opening refers to the inner diameter of the pipe plus (1) the thickness addition. II. The gasket coefficient m represents the ratio of the compressive force that must be applied per unit sealing area of the gasket, to the fluid pressure, in order to ensure that the sealing surface has sufficient fluid resistance under operational conditions. The harder the gasket, the larger the value of m. III. In accordance with the standards for towers, when calculating the natural vibration period, if the thickness of the tower shell and the skirt shell is increased, the natural vibration period of the tower will (3). A、1 time ； B, 2 times ； C. The larger, the better ； D. The smaller, the better ； E. Grow larger ； F, Become smaller --------------------- Answers: 1. B 2. C 3. F I. Comments: Clarify the concept of hole diameter in the calculations for reinforcement due to openings as specified in GB150.3. II. Comments: It assesses the understanding of the requirements in GB150.3 regarding the characteristics in gasket design. III. It assesses the designer’s understanding of the relationship between natural frequency period and wall thickness. In addition to using computer software correctly, designers must also be thoroughly familiar with the basic principles and rules. In particular, reviewers should use these principles and rules to evaluate the calculation results and make appropriate adjustments to the parameters.