【Daily Question】 【AC Version for Static Equipment...Question 29】 January 29, 2019 – True/False Question...Wish you good luck

Thread Content

bg10.png【Daily Question】【AC Version for Static Equipment...Question 29】 January 29, 2019 – True/False Multiple Choice Questions...Wish you good luck. Please enter 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 score will be given if it exceeds two days by 48 hours. ---------------------2018 HaiChuan “Top 10 Both Sides” Outstanding Members – Final candidate voting is in progress... https://bbs.hcbbs.com/thread-2273209-1-1.html---------------------You understand all these requirements; I won’t go into detail about the detours that need to be taken, hehe — valuable contribution of information. https://bbs.hcbbs.com/thread-2268245-1-1.html ---------------------Integration of the first phase’s [small event post] – Further redirection – [summary in one link] – Appreciation begins with sincerity https://bbs.hcbbs.com/thread-2275595-1-1.html---------------------Integration of the first phase’s [discussion post] – Further redirection – [summary in one link] – Appreciation begins with sincerity https://bbs.hcbbs.com/thread-2275557-1-1.html---------------------1. When designing pressure vessels, () loads are generally not taken into consideration. A. Hydrostatic pressure of liquids ； B. Rain and snow loads ； C. Inertial force ； D. Design pressure difference ； 2. When checking the pressure for planar instability of expansion joints, the yield limit value to be used should be the actual value of (). A. Before the material undergoes cold working hardening B. After the material undergoes cold working hardening 3. For a pressure vessel designed for a temperature of -25°C, the steel plate that can be used for its shell is 16MnR. ( ) A. Correct B. Incorrect Answer: 1. C B 2. B 3. B 1. Comment: This question relates to the general design principles for basic pressure vessels, as specified in GB150.1 (4.3.2). 2. Comments: This question tests the basic knowledge of expansion joints; it is somewhat off-topic, but expansion joints are also an important component of pressure vessels, and it is hoped that designers have some understanding of them. 3. Comments: Materials have a minimum operating temperature; as can be seen, we do not expect designers to remember the temperature ranges of all materials, but they should have a clear understanding of the operating range for the most common materials.