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      HMEL

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      Production Engineer Interview

      9 Jan 2026
      Anonymous employee
      Calcutta
      Accepted offer
      Positive experience
      Average interview

      Application

      I applied through university. I interviewed at HMEL (Calcutta) in Oct 2025

      Interview

      Realistic and technical intensive interview, with balanced focus on infusion of technical knowledge and common sense. There was no HR round though. The questions also included case study and plant operation.

      Interview questions [3]

      Question 1

      1. Is the Naptha Cracker Unit a part of the refining unit or petrochemical unit
      Answer question

      Question 2

      2. What is the azeotropic and extractive distillation. What is the third fluid used called? (Entrainer)
      Answer question

      Question 3

      3. If a pump is not working, what could be the possible reasons.
      Answer question

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