【Daily Question】Utilities - Mechanical & Electrical - 20190922

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In accordance with the requirements for supervision work outlined in the General Specifications for the Construction and Acceptance of Mechanical Equipment Installation Projects, the following approach is correct ( ).    A. For dismantled equipment, used equipment, mechanical products that fail to meet factory quality standards, and mechanical equipment whose precision does not satisfy the required levels, those products should be returned to the supplier with a request to resend them. B. Equipment that comes with a factory certification and passes the inspection upon unboxing can then be installed. C. For testing instruments equipped with scales or digital displays, their precision grade and maximum division value should not be lower than the minimum allowable deviation values for the items being tested. D. During the preparation phase for installation, inspections and supervision should be carried out in accordance with the installation procedures and inspection requirements specified in the approved construction plan; moreover, the contractor’s records of self-inspections, mutual inspections, and professional inspections during installation must be verified. Answer: D