Particles and WavesPAW

資格のキーホルダー · Master gasoline, kerosene, and diesel

Hazardous Materials, Hei

Organize the permitted materials down to the key numbers.

Repeat 250 questions on Hei-class materials, combustion, extinguishing, and regulations, then take a 25-question mock.

250 original questionsFocused Hei-class scope12- and 25-question mocks
250 questionsHazardous Materials, Hei app icon

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

ガソリンの類別はどれか。

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.