【Daily Question】Utilities - Mechanical & Electrical - 20191018

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This post was last edited by hesonchang214 on 2019-10-20 at 16:20. According to the requirements regarding supervision work outlined in the \"Code for Construction and Acceptance of Industrial Boiler Installation Projects\", which of the following statements is incorrect? ( )    A. Installation of the internal components of the boiler shall not proceed if the hydraulic test for those components fails or if no such test has been conducted. It is necessary to supervise the contractor to carry out a hydraulic test on the internal components before installation, and to verify the records of such tests. B. Once the steam and water pressure systems of the boiler along with its associated components have been installed, and all welding work on the pipes has been completed and found to be satisfactory, then a hydraulic test can be conducted on the boiler itself. C. Valves and the safety valves of steam boilers must undergo a hydraulic test individually, one by one. D. Before installation, safety valves must be sent to a local authorized testing agency to have their set pressure adjusted in accordance with relevant standards. Answer: B