4th Steam Practice Test

Quality control on a job site is carried out by the party that performs the work—the piping company. Their QC team checks that every part of the installation, including materials, welds, coatings, and tests, meets the project specifications and codes. This keeps accountability with the contractor who actually did the work and ensures there are clear records for quality and payment. The owner and the designer set the requirements and may review conformance, and the general contractor coordinates the overall job, but the day-to-day QC of the piping itself comes from the company doing the piping.