1. What do you know about testing? 2. Why should we hire you? They will ask you only what you have written in your cv. Its a testing house so add some analytical skills to get your cv shortlisted. Have some knowledge about guidelines related to your field like GLP, ISO, USFDA, WHO, CDSC req for drugs and pharma. Knowledge of most common instruments used in your field like in drugs and pharma UV, FTIR, HPLC, Dissolution are most common. If they ask you for salary negotiation, please dont negotiate stick to your expectations Do make things clear from the very beginning. Because the ask you for R&D and send you to analysis