39 written exams
Every question from 2009 to the first half of 2026, with its source and an explanation for each wrong choice.
Tsunagu Denko つなぐ電工
Past papers and wiring practice for Japan's Second-Class Electrician exam.
The app is in Japanese.
Coming soon on the App Store
Features
Zoomable wiring drawings
One large floor-plan drawing per paper that you can pinch to zoom.
Wiring trainer
Turn the single-line plan into the full wiring plan yourself, then choose ring sleeves and push-in connectors.
Exam mode
50 questions in 120 minutes, like the CBT, with flags, a question grid and a scratch pad.
One-time ¥1,480 · No ads · No subscription · iPhone and iPad
Coming soon on the App StoreAbout this app
Tsunagu Denko is a study app made by an individual. It has no connection with the Electrical Technician Examination Center (ECEE, 一般財団法人電気技術者試験センター). The written-exam past questions are those the center has published, used under its terms of use, with the source shown for each.