Johnson Controls Technical Support Engineer interview questions

I had 2 telephone interviews. First with team of HR. Very professional, very comfort conversation and very polite. Second one was with technical team. Also the same, very professional and very careful to make it a normal conversation between collegues rather than asking questions to measure you or to test you. It was very important for them to make me feel and transmit this kind of balance and bridging connection that they were honored talking with me. Very noble of them.

It was a 2 days process. I applied through campus recruitment. The paper consisted of moderate level aptitude questions with Instrumentation based questions. (There were two options- Embedded and Instrumentation, and you had to choose one.) It also had some general knowledge questions e.g. Deepest place on earth. (Mariana trench) Next day, 2 interviews were held (though they told us earlier that only one would be there). 1st was technical interview (one person was asking Qs to one candidate) after which only 24 candidates got selected, including me, and 2nd was HR interview (which was Technical interview only, but this time with the whole panel.) They asked us our favorite subject, and asked Qs from it. Finally, they selected 4 students.