Static Equipment Version [Daily Question] Question Collection Post - Wealth + Charm = Thank You]
Thread Content
This post was last edited by kareale88 on 2019-2-15 15:59 bg4.png [Static Equipment Exchange Edition... Solicitation of questions - with answers - with comments - the format is as follows] 1. In the GB150 external pressure cylinder calibration, Do/δe () is used as the boundary to distinguish thin-walled cylinders from thick-walled cylinders. A. ≥10B. ≥20C. ≥4.0----------Answer 1. B 1. Comments: This question is a basic concept question. Since the calculation methods used for thin-walled cylinders and thick-walled cylinders are different, the distinction between the two is very important, otherwise it will cause great errors. The calculation formula of GB150 is the calculation formula for thin-walled cylinders (GB150.3 4.3.2). Learn together for fun * , improve together and make progress together. I hope everyone will actively participate and let the enthusiasm spread. Come on! [Wealth + Charm = Thank You]
1. For pressure components that bear the pressure of two chambers at the same time, the maximum possible pressure difference between the two chambers should be considered in the design parameters. A) Design pressure B) Calculated pressure C) Working pressure Answer B, basic knowledge on 150
2. External pressure and vacuum heat exchanger for pressure test. A) Internal pressure B) External pressure Answer: A. Basic knowledge
Come and check out your section, hey! It’s so festive, the title is red and green, it gives me the feeling of Chinese New Year, I like it!
Chinese New Year is a big step closer, have fun together: lol
The following welded joints need to be tested by MT or PT ( ), and the qualification level should be Class I. A. Welded joint between skirt and tower shell. B. Welded joint between lifting lugs and tower shell. C. Welded joint between skirt and foundation ring plate. D. Welded joints between other connecting parts and the tower shell that require local stress verification calculations. Multiple choice question, answer ABD. Source: NB/T47041-2014 in 8.4.
The effective depth h of the flange screw hole at the end of the cylinder is calculated as follows (). (d is the nominal diameter of the bolt) A h≥ d B h≥1.1-1.3 d C h≥1.3-1.5 d D h≥ d Source GB150 7.7.4 Barrel end (flange) Answer C h≥1.3-1.5 d
Study carefully, pay attention to details, and understand the standards thoroughly.
At what thickness should the 16MnDR steel plates used for pressure vessel shells be subjected to ultrasonic testing one by one? What is the qualification level () A, >30~36, not lower than level II, B, >36, level II, C, >20, not lower than level II, D, >16, level I---------------- Answer 1, C 1. Comments: GB150.2 Table 3 (GB 150.2.4.1 .8).