The lessons and questions on this site were written with reference to the following publicly available official standards documents:
This is an independent educational project. It is not affiliated with, endorsed by, or connected to EASA, ICAO, CAAT, or any regulatory authority. Questions are either originally written or drawn from publicly available / openly licensed official sources (e.g. FAA public-domain material and Transport Canada's PSTAR question bank), attributed per question. They are not the live EASA or CAAT exam.
Some practice questions on this site are reproduced and adapted from official foreign sources and translated into Thai for study purposes only. They are not the live exam and are not legal authority.
These are study aids adapted from official sources, not the live exam.
Official documents are revised over time. Always check the latest version directly on the authority's website and confirm with a flight instructor before using for an exam or real flight.