The whole interview process took approximately 2 hours. It is overall a long procedure and they ask many questions . The first part had a lot of situational questions, such as ' Tell me about a time you....'.
After that they asked some safety based questions (they give a lot of importance on that!). The third part had some technical questions. Finally, they gave me some time to ask questions.
Both interviewers were really nice and they were trying to be supportive and encourage me to answer all the questions.