Apple Mechanical Engineer interview questions

1st interview was purely behavioral and asked about my previous projects. The recruiter mentioned that it takes about 1-6 weeks to schedule a second interview. So I am waiting on that.

On point interview, short by concise straight to problem solving. Question regarded mechanics, structures, materials. Then followed by scenario questions about real work engineering problems. Iphone, apple watch, i am just witting this to hit the 30 word minimum