危険物乙4Pass｜危険物取扱者試験対策

Hazardous Materials Class B4 Pass is a qualification learning app that allows you to study for the Hazardous Materials Handler Examination Class B4 on your smartphone.

It covers the laws and regulations concerning hazardous materials, basic physics and chemistry, properties of hazardous materials, and methods of fire prevention and extinguishing, all of which are tested in the Hazardous Materials Class B4 exam. You can practice with multiple-choice questions (5 options), 35 mock exam questions, review incorrect answers, detailed explanations, and explanations for each option. No sign-in is required; you can start learning immediately after the first launch.

[What you can do with Hazardous Materials Class B4 Pass]
・Study the 3 subjects of Hazardous Materials Class B4
・Hazardous Materials Handler Preparation for the Class B, Category 4 Hazardous Materials Handler Exam
- Studying by subject area of ​​laws and regulations
- Review of basic physical chemistry
- Review of properties and fire extinguishing knowledge
- Practice with 5-option multiple-choice questions
- 35 mock exam questions designed to simulate the actual exam structure
- Practice with questions based on past exams
- Confirmation of similar topics with original questions
- Review of incorrect answers
- Review of difficult questions
- Detailed explanations
- Explanations for each option
- Check of learning results
- Change font size
- No sign-in required

【Recommended for these types of learners】
- Taking the Class B, Category 4 Hazardous Materials Handler Exam for the first time
- Taking the Class B, Category 4 Hazardous Materials Handler Exam Planned Study Methods
- I want to organize laws, physical chemistry, and properties/fire extinguishing by subject.
- I want to quickly practice multiple-choice questions with 5 options.
- I want to check my overall preparation level with 35 practice questions.
- I want to learn by combining past exam-based topics with original questions.
- I want to efficiently review questions I got wrong.
- I want to deepen my understanding with detailed explanations and explanations for each option.
- I want to study in my spare time in addition to using paper textbooks.

[Studying 3 Subjects Together]
The Hazardous Materials Class B4 exam covers three subjects: laws, physical chemistry, and properties/fire extinguishing.

Hazardous Materials Class B4 Pass allows you to choose between short-term study of selected subjects and 35 practice questions that cover all three subjects. You can start by identifying your weak subjects, repeat them with short practice problems, and then finish by checking your overall performance with the 35 practice questions.

[Past Exam-Based and Original Questions]
It includes past exam-based questions referencing publicly available exam information and question trends, as well as original questions that review knowledge frequently tested in Class B4 from a different perspective.

Even with the same knowledge, areas like legal figures, designated quantities, combustion, fire extinguishing, flash point, ignition point, and the properties of Class 4 hazardous materials can be confusing when the question is phrased differently. This app combines past exam questions with original problems to help solidify your knowledge.


[Visualize your weaknesses and review]
Based on your learning history, incorrect answers, and difficult problems, you can identify areas that need review. Reviewing not only correctly answered questions, but also those you were unsure about or got wrong, with explanations, helps solidify your knowledge.


[Free Features]
・Some practice problems
・Correct/incorrect answer check
・Basic explanations
・Prioritize learning for incorrect answers
・Check learning progress
・Unlock additional problems by watching ads


[One-time Premium Purchase]
The one-time Premium purchase includes access to all problems, detailed explanations, answer-option explanations, difficult problems, 35 practice tests, and ad-free viewing. Since it's a one-time purchase and not a monthly subscription, you can continue your Class 4 hazardous materials preparation at your own pace.


[No Sign-in Required]
Registration of your name, email address, or phone number is not required. You can start learning immediately after opening the app. [Caution]
This app is not an official, authorized, or supervised app of the Fire Service Examination Research Center, a general incorporated foundation. It is an unofficial qualification learning app to assist with studying for the Class B, Category 4 Hazardous Materials Handler Examination.

It does not include official questions, publicly available questions, official textbooks, official explanations, official illustrations, or official logos.

This app is intended for qualification learning purposes and does not provide advice on handling hazardous materials, on-site judgment, accident response, legal advice, or business consulting.