電験三種 電力 過去問 2026 一問一答

This app allows you to study past exam questions for the Electrical Engineering Section of the Third-Class Electrical Chief Engineer Examination (Denken 3), in a question-and-answer format. It includes the last 10 years of actual exam questions, covering all aspects of power generation (hydroelectric, thermal, nuclear, and new energy), substations, transmission, distribution, and electrical materials.

■ Main Features
・Includes over 300 questions from the past 10 years (all questions with explanations)
・Efficient learning in spare time with a question-and-answer format
・AI answers your questions instantly
・Automatically detects and prioritizes your weak areas
・Displays your correct answer rate based on all users' answer data
・Allows you to select practice ranges by year (first half/second half)

■ Covers frequently tested topics in the Electrical Engineering Section
You can focus on topics that appear every year, from hydroelectric power output calculations, steam cycles and thermal efficiency, nuclear reactors and fuel cycles, transformers, circuit breakers and lightning arresters, voltage drop and transmission losses in transmission lines, distribution methods and voltage regulation, to the characteristics of electrical materials.

■ AI Question Function
You can ask the AI ​​questions about calculation procedures or equipment principles that you don't understand even after reading the explanations.
■ Features that make learning easier
- Make learning a habit with "Today's Question" delivered daily
- Work together with friends in the league-style ranking system
- Check your learning progress with graphs