Book (Practical) Science and nature Work book of Passing of Technical Examination for Sewerage System Class 2 (2nd edition)

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Science and Nature The latest work book of the second class Technology Certification Test for Sewerage Systems! We thoroughly studied the contents of the second class Technology Certification Test for Sewerage Systems. We organized and classified all the questions presented during the past eight years up to the latest 2019 according to the subject fields (design of piping, construction of piping, construction management, sewage treatment, sludge treatment, electrical and mechanical equipment, laws and regulations). The past questions are classified by subject field, so you can see not only the questions that have been presented repeatedly, but also the number of questions that have been presented over the past eight years. Detailed explanations are provided for each option, so this one volume can grasp trends and take measures for testing. The final work book of the second class Technology Certification Test for Sewerage Systems by the author who is familiar with this test.