危険物取扱者 乙4　国家試験問題集

This app is a collection of questions for the examinees of Dangerous Goods Dealer Otsu 4 (Kikenbutsutori Atsukaisha Otsuyon) in 2022.

By the way, the most popular among the hazardous materials handlers are Otsu 4 types.
Due to the large number of examinees, the pass rate is not high compared to other types. An effective method is to focus on past questions. It is not uncommon for hazardous materials handlers to ask patterned questions, so solving many past questions is the best practice.

By repeatedly solving past exam questions, you will be much closer to a short-term pass.
Please learn efficiently with the past problems and explanations of this app.
Exhibit Otsu 4 questions

1 "Law"
2 "Basic Physics and Basic Chemistry"
3 "Characteristics of substances, fire prevention, fire extinguishing methods"

There are 3 subjects.


[Law]
1. Fire Service Act / Law

[Basic Physics & Basic Chemistry]
2. Basic physics
3. Basic chemistry
4. Burning and extinguishing

[Characteristics / Fire prevention / extinguishing method]
5. Dangerous goods nature
6. Common characteristics
7. Fire prevention & extinguishing common to dangerous goods
8. General properties of dangerous goods
9. Fire prevention & extinguishing for each dangerous item