A study app for the Japan Class 3 Chief Electrical Engineer (第三種電気主任技術者 / Denken San-shu) exam. Study efficiently with practice questions and detailed explanations across all four subjects.
■ Subjects Covered
• Theory (Electrical / Electronic Theory and Measurement)
• Power (Generation, Substation, Transmission and Distribution)
• Machinery (Electric Machines, Power Electronics, Lighting, Heating)
• Laws and Regulations (Electricity Business Act, Technical Standards)
■ Study Modes
• Random practice (10 / 25 / 50 / 100 questions)
• Study by subject
• All questions in order (resume supported)
• Review incorrect answers
• Bookmarks and unanswered questions
■ Progress Tracking
• Automatic tracking of correct answer rate
• Subject-by-subject performance overview
Works completely offline — study anytime, anywhere.
■ Reference Source
• https://www.shiken.or.jp/ (Japan Electrical Engineers' Examination Center)
※ This app is an independent study tool and is not affiliated with any examination body. Content is based on general exam scope and may differ from the actual exam due to law revisions.
