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bg4.png [Daily question] [Static Equipment Exchange Edition...Question 137] Multiple choice question on May 17, 2019... All the best......................................................................................Answers (single-choice, single-choice) please fill in each in order. Examine the knowledge points of GB/T 151-2014 heat exchangers. Bonus rules: Participation will reward you with 3 wealth, and correct answers will reward you with 5 wealth. ....................................................................1. The definition range of the heat exchanger in GB/T 151-2014 includes the first connection end face connected to the external pipe. () A. Correct ； B. Error ； ---------------------2. The definition scope of heat exchangers in GB/T 151-2014 does not include the connection welds between non-pressure components and pressure components. () A. Correct ； B. Error ； ---------------------Answer: (Inspection of GB/T 151-2014 heat exchanger knowledge points) 1. A 2. B Comments 1: 1.8 Scope of heat exchanger: a) Heat exchanger connected to external pipes: 1) The groove end face of the first circumferential joint of the welded connection ； 2) The first threaded joint end face of the threaded connection ； 3) The first flange sealing surface of the flange connection ； 4) The first sealing surface of the special connector or pipe connection. Review 2: c) The connection weld between non-pressure components and pressure components.