I think this really depends on your specific university. At my university in Eastern Europe the teachers were bitter and overworked, and that really showed during oral examinations.
Because of the high number students enrolled in the classes, almost all oral exams also featured a written component, very similar to a regular exam. Because of the unstructured nature of oral exams, you would have an arbitrary amount of time to solve it. After that the professor would make you elaborate some of your anwsers, or not, depending how he felt like. The students who performed best were indeed very extroverted and able to convince the professor that they actually meant something other than what they wrote.
The professors also used these exams to give you an arbitrary grade for the subject, depending exclusively on your oral exam "performance". I remember having a high 90% grade in the written part of my Advanced Electronics class. The professor didn't feel I was confident enough in my answers during the oral exam, so he passed me with 1/30 points even though I answered most of the answers correct, thus bringing my grade down to barely a C.
Oral exams sound great in theory but in practice they always felt somewhere between unfair and traumatizing. I much prefer the objectivity of written exams.
Because of the high number students enrolled in the classes, almost all oral exams also featured a written component, very similar to a regular exam. Because of the unstructured nature of oral exams, you would have an arbitrary amount of time to solve it. After that the professor would make you elaborate some of your anwsers, or not, depending how he felt like. The students who performed best were indeed very extroverted and able to convince the professor that they actually meant something other than what they wrote.
The professors also used these exams to give you an arbitrary grade for the subject, depending exclusively on your oral exam "performance". I remember having a high 90% grade in the written part of my Advanced Electronics class. The professor didn't feel I was confident enough in my answers during the oral exam, so he passed me with 1/30 points even though I answered most of the answers correct, thus bringing my grade down to barely a C.
Oral exams sound great in theory but in practice they always felt somewhere between unfair and traumatizing. I much prefer the objectivity of written exams.