For oral examinations an appointment has to be made before official application at the registrar's office.
Write an E-Mail  to Prof. Ziegler's secretary Doreen Oehme (subject: Appointment for oral examination) with the following content:
- Surname, given name
- Matrikel number
- Subject (exact name of the module)
- Degree Programme
- optional: desired date or period of examination
Furthermore it is useful to contact the scientific assistants responsible for the module for requests on procedure and content of the examination (i.e. Energie-, Impuls- und Stofftransport I , Technische Wärmelehre )