St Joseph of Cupertino – an excellent help in the preparation for, and the passing of, examinations! I speak from personal experience many years ago.
This is a special prayer which I recommend to all students:
“O great St Joseph of Cupertino, who by your prayers obtained from God that you should be asked at your examinations the only propositions you knew, obtain for me that I too may succeed in the examinations for which I am preparing. In return for which I promise to make you known and cause you to be invoked. Amen”