危険物乙4 試験対策1000問 - オリジナル予想問題+解説
Android app by DUST LINE. Education · DUST LINE
- Store rating
- Unknown
- Store rating count
- Unknown
- Download price
- Free to download
- In-app purchases
- Listed by the store
- Version
- 1.0.2
- Listing last refreshed
- 2026-09-18
View the original store listing
Store description excerpt
This is an exam preparation app for those aiming to pass the Hazardous Materials Handler Class B Category 4 (Otsu 4) exam. You can repeatedly study laws and regulations, basic physics and chemistry, properties of hazardous materials, fire prevention, and fire extinguishing methods with 1000 original practice questions. Each question comes with an explanation, allowing you to check not only whether the answer is correct or incorrect, but also the thought process that led to the answer. [Main Features] ・Includes 1000 original practice questions ・Practice questions by subject area ・35-question mock exam simulating the structure of the actual exam ・Detailed explanations for each question ・Review and check incorrect answers ・Display of learning history, correct answer rate, and weakness ranking ・Save learning data on your device [Recommended for:] ・Those taking the Hazardous Materials Handler Class B Category 4 exam for the first time ・Those who want to study little by little during their commute, school, or breaks ・Those who want to identify their weak areas through repeated practice questions ・Those who want to check their abilities with a mock exam before the actual exam Basic practice questions are available in the free version. The free version has advertisements and limitations on the number of times some features can be used. The PRO version removes ads and offers unlimited access to the selected features. The questions in this app are original practice questions created specifically for learning purposes. They do not reproduce actual exam questions or guarantee passing the exam. This app is not an official app provided or endorsed by any public institution, examination body, or related organization.
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