[Compatible with the 2022 exam] Fire Defense Equipment Officer Class 4 Class B test preparation app.
Only the questions that often appear in the exam are recorded.
You can learn efficiently in the gap time in a question-and-answer format.

We hope you find it useful.
Please help us to study Fire Defense Equipment Officer Otsu 6.
Ideal as a past problem or reference book + α for Fire Defense Equipment Officer Otsu 4 and A4.

This app is operated by advertising revenue, so you can use it for free.