Iam giving some of the questions that i remember here, it took 54 days to get results after interview, wish you all the best , i believe these will be helpful for your prep 1) Personal Introduction 2) Asked for favourite Subject ( i selected heat transfer) 3) Which are the equipments used for heat transfer 4) Comparison between those 5) How to improve the heat transfer in heat exchanger 6) Different types of work pump 7) Designing of heat exchanger 8) Some questions from PDC 9) Different types of Hazard and what are the ones you noticed in your internships 10) what is steam enthalpy 11) Differentiate between latent heat of vaporization and Sensible heat 12) What is MSDS, and what are the information available in MSDS 13) Do you have any questions to ask Prepare cooling tower also , for my friend they asked these