First was the phone interview, and then a face to face with the manager and the supervisor. They asked knowledge questions about diesel tractors and also trailers. They also asked if you kept up with current and upcoming diesel technologies. They also asked troubleshooting steps if certain things happened to a tractor. The questions vary due to which the manager wants to ask at the time because they had a list of questions in their hand. They asked about 8 different questions about troubleshooting steps to find problems.