Engineers are responsible for designing and building products. In an interview context, expect to be quizzed on your technical skills, and also evaluated for your ability to work as a part of a team to get things built. The specific questions you are asked will depend on what type of engineering position you are looking for. Try a specific engineering discipline, such as software engineer, electrical engineer, or mechanical engineer.
If you recognized a design flaw on a project once submitted to the client that was not caught by the company or the client, was constructed, and ultimately caused an accident, would you bring it to the attention of senior management?
I would bring it to the attention of senior management as it is an ethical issue which the company has the obligation to take accountability for and correct.