# Class-2 Electrician - PassRun — 520 questions, mocks, mistakes

> 520 questions, mocks, mistakes (iPhone/iPad app by hyuncheol seo.)

- Source: https://appshunter.io/ios/app/class-2-electrician-passrun/id6809242074 (this page in markdown: same URL + `.md`)
- Developer: [hyuncheol seo](https://appshunter.io/developer/6797554122)
- Category: Education, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 66 MB
- Languages: American English, Japanese
- Released: 2026-10-01
- Data updated: 2026-10-01
- User reviews in markdown: https://appshunter.io/ios/app/class-2-electrician-passrun/id6809242074/reviews.md

## What is Class?

Everything you need for the Japanese Class-2 Electrician (第二種電気工事士) written exam, in one app.

520 original practice questions written along the official syllabus, every one with an explanation.
No sign-up, no internet connection required — start studying the moment you install it.

■ Mock exams in the real format
- 50 questions (30 general + 20 wiring-diagram) with a 120-minute limit
- Instant pass/fail: 2 points per question, 60 out of 100 to pass
- Jump to any question from the answer-sheet view, just like the real CBT
- Pause and resume where you left off
- 5 full rounds with no repeats

■ A mistake notebook that thins itself out
- Wrong answers are collected automatically
- Three correct answers in a row graduates a question off the list
- Add your own note to any question
- Filter by area, sort by how often you missed it

■ Study by the 7 areas of the syllabus
- Basic electrical theory (Ohm's law, power and heat, AC, three-phase)
- Distribution theory and wiring design (voltage drop, allowable current, feeders, branch circuits)
- Machines, wiring devices, materials and tools
- Installation methods (wiring methods, connections, earthing)
- Inspection methods (completion inspection, insulation and earth resistance)
- Wiring diagrams (symbols, two-line diagrams, reading the plan)
- Safety laws and regulations
- Short, focused sets by sub-topic, with the answer and explanation right after each tap

■ Statistics that show your weak spots
- Accuracy per area, so weak areas surface on their own
- Score trend across your mock exams
- Last two weeks of study time and your daily streak
- "Weak-point drill" that gathers only your lowest-accuracy questions

■ And more
- Random mock: choose the range and the number of questions
- Bookmarks for the ones you want to come back to
- Search across question text, options and explanations
- Dark mode and adjustable text size
- Shuffle questions and options so you don't memorise positions

- Your study records stay on the device and are never sent anywhere.
- The questions are original practice questions written along the syllabus, not the actual exam papers.
  For official information such as schedules and applications, see the exam centre site (shiken.or.jp).
- Contact: seohcz1@gmail.com


## Version history (last 1 release)

### 1.0.4 — 2026-10-01

No release notes.

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All apps by hyuncheol seo: https://appshunter.io/developer/6797554122

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-01.*