The first-stage examination for Professional Engineers (PE) is a national examination conducted as the first step towards obtaining PE qualifications. It tests fundamental knowledge in science and technology fields, as well as engineering ethics. It is positioned as an examination to confirm the basic abilities required for engineers who will contribute to society as PEs in the future. The examination consists of three areas: basic subjects, aptitude subjects, and specialized subjects. In addition to basic knowledge in science and technology such as mathematics, physics, chemistry, and information, it requires an understanding of engineering ethics and safety management. This problem collection is a test preparation problem collection that systematically organizes the scope of the first-stage PE examination. It is structured to allow for step-by-step learning from basic science to engineering ethics and the fundamentals of specialized fields. It can be used for final review in the final preparation period, as well as for confirming basic skills and reinforcing weak areas in specific fields. ⸻ ■ Content Structure of this Book ・Basic Subjects (Mathematics) ・Basic Subjects (Physics) ・Basic Subjects (Chemistry) ・Basic Subjects (Information) ・Basic Subjects (Biology/Earth Science) ・Aptitude Subjects (Engineering Ethics) ・Safety Management ・Environmental Issues ・Basic Specialized Fields ・Comprehensive Review Problems The structure allows for learning through the flow of Understanding → Practice → Comprehensive Review. ⸻ ■ Features ・Covers the entire scope of the first-stage PE examination. ・Systematically organizes basic science and engineering ethics. ・Strengthens fundamental scientific and technological capabilities. ・A structured problem collection that is easy to study independently. ・Ideal for comprehensive review in the final preparation period.