COTG Field Service Engineer interview questions

Contacted by the company after posting resume on career builder. The hiring process was fairly drawn out. Had an interview with a Recruiter, then my potential supervisor, then his assistant. After this I was asked to shadow an engineer for a day and the tech would evaluate if I could pick up the knowledge necessary. I was then asked to do a personality test as well as drug test. Then I got a panel interview where a number of managers asked me questions and made the final decision.