
Horacio C. answered 08/08/23
Native Engineer from Spanish speaking country with 2+ yrs of Teach Exp
Assuming we walk into a room in the morning of the exam, and the professor is male, we would formally greet him like this:
Buenos días, ¿cómo está Usted profesor? Un placer conocerlo
Translated: “Good morning, how are you professor? Nice to meet you.”
We emphasize the word “Usted” for a very formal way in Spanish.
Hope that helps.