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The first required reading for the National Pressure Vessel Design Approval Certificate Examination, the theoretical exam, is open book only. 40 multiple choice questions: ~20 points, 20 true or false questions: 20 points ； 6 short answer questions: 30 minutes ； 2 analysis questions: 30 minutes. A total of 68 questions, three hours, understanding and studying the "Ronggui" and GB150 and GB151 * Those who have passed the basic theory of pressure vessel design can easily pass the test. For example, those who are familiar with specifications, standards and basic theories can complete the test in 30 to 40 minutes without consulting books. 0 O" \( S: G2 T' h Answer order: Analysis, short answer, right and wrong, choice. When you first enter the venue and have a clear mind, you should first take two high-scoring questions to ensure a score of 25~30. ； Then do the quiz questions. If you are not familiar with it, you can look up the information and try to get about 25 points. ； 8 questions will give you 50-60 points. It shouldn't be a problem to get 15 points for 20 true and false questions. I scored 65~75 points. I "choose" in a leisurely manner and answered half of them correctly. I passed 70 points. For this kind of exam, 70=100, no high score is necessary. The Standardization Committee is actually very tolerant. I personally think that the content of this type of test questions is for pressure vessel designers (not auditors! ) should possess the minimum basic knowledge. 0 a& F1 Q: xz' U5 U% |1 y 2. Defense of Unified Drawings before the Competence Committee, 60 points. 30 minutes to find the error, a major mistake: 20 points, three technical errors 10 points each: 30 points, 10 points for other general errors. Troubleshooting skills: Don’t panic after getting the drawings. Check the technical characteristics table first for major errors: a container category ； bMaterial ； c heat treatment, d welding joint coefficient, design parameters, etc., mainly involve the "Capacity Regulations", such as some requirements for holding liquefied petroleum gas storage tanks with high hydrogen sulfide content. After 20 minutes of finding major errors, check the "technical requirements" and look for three technical errors, including requirements for material re-inspection, non-destructive testing, heat treatment, pressure testing, anti-corrosion, impact testing, and welding test plates. Involving the main content of specifications and standards such as "Capacity Regulations", GB150, GB151, GB12337, JB/T4710, JB/T4731, etc., as long as you have actually designed pressure vessels for two or three years, it is easy to score 60 points. If you just read the specifications and standards and remember some main contents, you will be lucky and you can pass. The chemical technology forum gives people roses with lingering fragrance; l8 q) K5 d( M, s/ c7 u/ p There is a man who was uneasy after the defense and wondered whether he had found any major mistakes. I asked him to carefully recall the contents of the technical characteristics table and find out what problems he had.: Category III container petroleum liquefied gas horizontal storage tank, material 20R, design parameters are OK, put a "√" in the heat treatment column when submitting the drawing. I said: That's right. Article 73 of the "Content Regulations" requires that horizontal storage tanks containing mixed liquefied petroleum gas should be integrally heat treated in a furnace. If the drawing lacks this requirement, it is not a major mistake, so he finally calmed down. 3. Drawing defense, four questions worth 40 points. The questions range from simple to easy, and vary from person to person. How simple is it? "How many methods are there for non-destructive testing?" ”, RT, UT, PT, MT, of course you can add LT, ET, VT, AE to be more comprehensive, you can get it with 10 points. Some questions may be related to the type of vessel you choose, such as the saddle design of a horizontal vessel or the stress analysis of the column wall or spherical vessel pillar or heat exchanger tube sheet. What stresses should be checked during design. The depth of the answer may vary depending on the situation in which you answer the question, such as: How to carry out hydrogen elimination treatment→temperature, time→why to carry out hydrogen elimination treatment→where does hydrogen come from? etc. There are still a few minutes before you draw a question and select a container type before entering the drawing review room. Make use of these minutes to sort out and find out what issues may be involved in the container type you selected, and prepare in advance in a targeted manner. The defending teacher is actually very compassionate and will never deliberately embarrass the students. It is recommended not to collect previous exam questions and memorize them by rote, but to read through the standards specified by the Standardization Committee honestly and remember the key points before studying. * After reading the basic theories in the "Design Guide for Pressure Vessel Design Engineers", you can pass the assessment even if you don't participate in training. For the exam, you must be confident that you will definitely pass. Personnel applying for design approval of Class A pressure vessels should meet the following conditions:: 1． College degree or above (or equivalent) in pressure vessel related majors, engaged in technical work in this field, and possessing comprehensive professional knowledge of pressure vessels ； 2． Be familiar with and able to guide design and verification personnel to correctly implement relevant procedures, standards and other technical specifications, and be able to solve technical problems in design, manufacturing, installation and production. ； 3. Able to conscientiously implement * * Relevant technical aspects, policies, strong sense of work responsibility, relatively comprehensive professional and technical knowledge of pressure vessel design, able to ensure design quality ； 4. Ability to review computer designs ； 5. Have more than 6 years of pressure vessel design experience (8 years for college graduates) and more than 3 years of pressure vessel verification experience ； 6． Have technical titles above intermediate level (including intermediate level) ； 7. The license is valid until the age of 70.