While not required, industrial production managers can earn certifications that show a higher level of competency in quality or management systems. (bls.gov)
You can also consider becoming a member of a relevant professional body, which will demonstrate your commitment to your profession as well as indicating a level of competency in your field. (prospects.ac.uk)
The interviewer will ask you set of competency based questions and behavioral based questions. (job-interview-site.com)