This study tool, titled "Efficient Study Tool for Third-Class Refrigeration Machinery Responsible Person Exam," offers a smooth user experience. Users can scroll through questions and choices simultaneously in the upper and lower areas. It includes a review function for effective studying, allowing users to solve numerous problems. Incorrect answers are recorded and displayed at the top of the question, with a feature to focus on revising only the missed questions. Even after returning to the main menu, users can continue from where they left off. The tool highlights questions needing review at the bottom, providing manual control to customize the revision list for efficient learning.