This exam preparation app allows you to complete all your studies for the Drainage System Construction Supervisor qualification exam using just your smartphone. With 595 practice questions covering both legal and technical aspects, and a mock exam designed to simulate the actual test, you can steadily build the skills needed to pass.

▼ Recommended for:
* Those aiming to obtain the qualification of a Drainage System Construction Responsible Technician
* Those who want to study efficiently by utilizing commuting time or spare time
* Those who want to prepare for both legal and technical fields in a balanced way
* Those who want to practice calculation problems thoroughly

▼ Included Questions
[Legal Matters] 150 questions
Purpose/Definition, Application/Confirmation, Drainage Classification, Construction/Inspection, Responsible Technician, Private Roads/Other People's Land, etc.

[Technical] 415 questions
Sanitary Fixtures/Traps, Ventilation, Calculations, Manholes/Pipelines, Cleaning/Maintenance, Construction, Fixture Drainage, etc.

[Mock Exam] 30 questions (9 legal questions + 21 technical questions)

▼ 4 Question Formats
* Fill-in-the-blank questions (selection from word groups)
* Multiple-choice questions (5 options)
* True/False questions
* Multiple-choice questions with tables

▼ Main Features

[Category-Based Learning]
You can work on 10 questions from each category of legal and technical matters. Progress can be seen at a glance, allowing you to focus on areas you struggle with.

[Mock Exam]
A 30-question mock exam (9 questions on laws and regulations + 21 questions on technology), just like the actual exam, with a 120-minute timer. You can check your pass/fail status, the breakdown of laws and technology questions, and explanations for incorrect answers.

[Explanations for All Questions]
All 595 questions include clear explanations and references. You can deepen your understanding as you learn.

[Review & Bookmark]
A mode is included that allows you to focus on reviewing only the questions you answered incorrectly. Bookmark questions you're interested in for easy review.

[Random Questions]
10 questions are randomly selected from the entire range or from each section (laws and technology). This helps solidify a broad range of knowledge.

[Calculation Problem Support]
Calculations can be performed anytime with the built-in calculator. Drawings such as vertical cross-sections and leveling diagrams of drainage facilities can be zoomed in and out for detailed viewing.

[Learning Analysis]
Learning progress is visualized in graphs, including correct answer rates by category, daily learning volume, correct answer rates by difficulty level, learning streaks, and mock exam score trends.

[Learning Reminder]
Equipped with a notification function to help you make daily learning a habit. You can set the notification time to your preference.

[Completely Offline]
No network connection is required. You can learn anytime, anywhere, even while commuting or on-site.

▼ App Features
・A substantial volume of 595 questions included
・Supports four formats: fill-in-the-blank, multiple choice (5 options), true/false, and multiple choice (5 options with a table)
・Explanations and references are included for all questions
・Simulate the real thing with a mock exam
・Visualize your learning progress with graphs
・Completely offline compatible
・Built-in calculator and drawing viewer