Interview is a general question/answer format about work experience, your contributions, expectations and then the manager or supervisors will break out a schematic of a particular piece of NOV equipment. The schematic test is designed to stress you out, especially if you are new to the industry. They want to see how you handle under pressure, if you will give up or get frustrated. Just take your time and work through the process, if you are familiar with schematics you will probably do great, if not, it's ok, they will help you through as long as you demonstrate you can learn as you go and keep trying.

I was asked for my resume from a tech to fill the position in the Permian Basin. After a few weeks of hit and miss attempts to meet our schedules met up and we got together over my lunch at the NOV facility and just had an awesome conversation and interview.