It has been noticed for last several years, many inspectors working for refinery projects and refinery operations needs more knowledge in refinery process, damage mechanism and associated failure for their day-to-day activities. We, a group of engineers, having 25+ years of experience in this field tried to develop simple lecture notes plus many quizzes. Recommend, all inspectors and project engineers, working any project or operation, related to refinery industry, get full version access of this course. Once access has been granted, candidate will be above to study lecture notes plus candidate will be able to appear for any number of examinations he like to undergo. By doing good practice, inspectors will be familiarized with refinery process with various damage mechanism. This will help inspector gain extensive knowledge in refinery technology.