Is it permissible to watch a video clip in which a woman appears, in order to identify her mistakes as a poor presenter in an "English Communication" course, for the purpose of obtaining a test score?

It is permissible to watch a video clip showing an unveiled woman if it is necessary to pass an exam and complete one's studies. This is analogous to the permissibility of looking at a woman when there is a need, such as in cases of medical treatment, trade, and bearing witness.