Overall technical/design questions, how to handle field failures.
In technical Cummins is covering all past experience, projects handled, approach for project, reporting structure, approach for asked case study, diversity questions, work interest, behaviour with female team member. Senor leader's questions are more focused on design calculations, SOM base questions, material knowledge. Final HR was focused on mainly personality questions, interest other than work, diversity, behaviour with female team member, how and what you know about Cummins, why Cummins like questions.