In order to get through it , First & foremost , candidates need to go through the geographical & environmental conditions of the country applied for , Course structure of the university , State of the Art, Faculty , Accomodation, Relevancy of the course , employment scope etc There are certain set of questions that are asked in every Visa Interview related to above fields so to know the interest of candidates. However , while interview , answers should not sound memorised otherwise you are likely to lose.