Organize all six classes together
Hazardous Materials, Kou
Learn the differences by comparing each class.
Study regulations, physics and chemistry, and material properties, then measure total readiness in the 45-question exam format.
450 original questionsAll six classes22- and 45-question mocks
450 questions
Before you start
- iOS app
- 甲種危険物取扱者 一問一答問題集
- What it does
- Practice for Japan's Hazardous Materials Kou exam with explanations and subject-level feedback.
- Content and features
- 450 original questions / 22- and 45-question mock exams / Explanations for every answer choice
- Requirements
- iOS 16.0 or later
- Free access and purchases
- A limited free trial is available. A one-time in-app purchase unlocks further questions and mock exams; see the app for current limits and price.
- Before choosing
- Japanese-language exam practice. Independent of the exam authority, with no pass guarantee. Check current official rules and eligibility.
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
第1類（酸化性固体）の性質として正しいものはどれか。
CONTINUE IN THE APP
Continue in a study environment built for this exam.
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.