How do you do dimensional tolerance analysis? Draw a stress-strain curve and describe it. How do you improve stiffness in these glasses? How do you do root cause analysis, such as in this broken hinge on the glasses? How do you diagnose the cohesion/adhesion of this joint on the glasses? What are Cp and Cpk? How do you do root cause analysis and corrective action for this plastic part that breaks? What kind of materials and coatings would be used for this battery contact on the glasses? What manufacturing processes do you know the best/least? How do you test products? How would you design the PCB to fit through this small hinge on the glasses? How do you ensure the position of these two cameras on the glasses? How do you select connectors and cables to go board-to-board?
