【Daily Question】Utilities - Mechanical & Electrical - 20190220

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According to the \"Code for Construction and Acceptance of Industrial Furnace Lining Works\", what is not included in the content of the process handover certificate is (). A. Certificate of acceptance for concealed works B. Certificate of successful welding integrity test C. Certificate of acceptance for refractory materials D. Requirements for protecting the results of previous construction stages 【Answer】C 【Explanation】The \"Code for Construction and Acceptance of Industrial Furnace Lining Works\" (GB 50211) stipulates that the certificate of work handover shall include the following contents: ① Measurement records of the furnace’s centerline and control elevation, as well as observation records from necessary settlement monitoring points ； ②Proof of the contract for the acceptance of concealed works ； ③Records of pressure testing for the furnace cooling system, pipelines, and furnace shell, along with certificates confirming that the welding quality is satisfactory ； ④Records of re-measurement of the main dimensions at installation locations such as the steel structure and furnace tracks ； ⑤Certificate of successful trial operation of the movable furnace or its movable parts ； ⑥Certificate of inspection confirming the correct location, dimensions, and welding quality of the refractory bricks, anchors, etc., inside the furnace ； ⑦Requirements for protecting the results of previous processes.