Most free downloads are just lists of questions and answers. Without a "why" behind the answer, you aren't learning; you're just memorizing.
The EASA and FAA ATPL syllabi are massive. Question banks serve two purposes: atpl question bank free download
There is an old saying in aviation: "It costs a lot of money to be a cheap pilot." Most free downloads are just lists of questions and answers
If you get a question wrong, read the explanation thoroughly. you aren't learning