Apple Thermal Engineer interview questions

First a call from recruiter. 15 min technical questions. If pass you go to phone interview stage. Then manager called me for 40 min technical interview. Very fundamental questions. Questions not asked clearly. For most of them not all needed input parameters are provided so you should ask what needed

Submitted profile online and got a call from the hiring manager about two weeks later. Phone interview for 30 minutes exactly. Hiring manager was looking for more experienced person in forced convection and energy balance.