資格のキーホルダー · Thirty written questions: 40% per subject and 60% overall
Fire Equipment Officer, Class B-6 (Extinguishers)
Learn the extinguisher standards from the statute text.
Drill 125 original questions on fire-service law, basic mechanics, and the structure, function and maintenance of extinguishers, each with the statute or inspection guideline behind it. The 30-question mock follows the written split of 10/5/15. The practical (identification) part is not covered. The same app also covers Class A-4 (140 questions), Class B-4 (132) and Class B-7 (110), all three on iPhone only; Pro is bought per class.
Before you start
- iOS app
- 資格のキーホルダー 宅建・簿記・FP・ITパスポート
- What it does
- One app with practice questions for 49 Japanese exams across 34 qualifications, each with its own study record and exam date.
- Content and features
- 49 exams, 34 qualifications / Explanations for every choice / Automatic review of missed questions / Daily target from your exam date
- Requirements
- iOS 16.0 or later
- Free access and purchases
- The first 10 questions of every qualification are free. Full questions and mock exams are a one-time in-app purchase per qualification, not a subscription.
- Before choosing
- Japanese-language exam practice. Not an official app of any exam body and no pass guarantee. Most questions download when you open a qualification; the first 10 work offline.
iOS facts checked: · Current App Store listing and purchase terms ↗
3-MINUTE CHECK
Try three questions.
Can you recall the reason?
The mini diagnostic is in Japanese, with a short explanation after each answer. No sign-up is required.
QUESTION 1 / 3
消防法でいう「関係者」の定義として、正しいものはどれか。
問題は独自作成で、試験実施機関が公表した試験問題の転載ではありません。法令はe-Gov（2026年10月3日時点）に基づきます。実技（鑑別）は収録していません。本アプリは試験実施機関の公式アプリではありません。
CONTINUE IN THE APP
Continue in the Keyholder app.
Move from focused repetition to exam-format mock tests while keeping your study history.
This page and app are independent study aids, not official exam-authority products. Check current official information before taking an exam.