Industrial Engineering Interview Questions & Answers — commonly asked B.Tech / campus placement interview questions with clear, practical answers. Tap any question to open its answer. Showing the first 50 questions free. The complete 250-question bank is available as a PDF below. Industrial Engineering — Q1 to Q50 Q1 A production line is achieving its target output, but operators are frequently waiting for materials. How would you investigate the problem? Answer I would study the material flow, line-side inventory, replenishment frequency and movement time between stores and the production line. I would identify whether the issue is caused by poor planning, delayed material handling, inadequate buffer stock or incorrect line-side storage. Q2 A manufacturing plant has high production output but poor productivity. What would you analyze? Answer I would compare output with the resources consumed, including manpower, machine hours, material, energy and production time. I wou...