I was involved in hiring 15 Electrical/Instrument technicians for a large Chemical Company. In my opinion we went overboard with our testing. We had a hands-on demonstration of wiring instrument loops and a electrical control circuit. We also had a written test. We finally had a interview with the applicant. This was a very expensive hiring process.
I felt that I had the qualifications to interview the applicant myself, and test him with a written test. Possibly have him give a hands-on demonstration of wiring up a three-wire control circuit for a motor, etc.
Bottom line, if you have the expertise, you can do the job. I look at a person and what I want to see is "Attitude", I feel that I am a good reader of people, and I can pick out the people with a poor attitude.
