(The first-level construction engineer majoring in electromechanical engineering is a project manager who understands technology, economy, management, and laws and regulations based on the major of electromechanical engineering. In the grasp of the compilation of mechanical and electrical engineering technology in this chapter, it is mainly based on the meaning of the sections, items and articles of the national first-class construction engineer qualification examination outline, and carefully organizes the selection of mechanical and electrical engineering majors from small to professional contracted projects, from the initial plan to the test. Involved in the general contracting of the construction project after the operation)