1. Petrochemical engineering design: high voltage system, power supply and distribution, lighting, grounding, etc. Used in oil and gas ground engineering, oil refining engineering and oil storage and transportation engineering.

2. Petrochemical industry engineering construction: it is also the installation and debugging of electrical equipment in the above projects.

3. Operation and management of petrochemical plants. It involves the operation and maintenance, equipment management, overhaul and debugging, and technical transformation measures of electrical equipment in the factory.

4. Others: That is to say, I resigned and developed in other ways.

As for the interview, you have to pay attention to different knowledge points according to the nature of the enterprise you choose (general interviews don't ask you specific professional knowledge questions like exams, just want to know what you know about your major and what you want to do, etc.). Of course, professional knowledge is one aspect, and other aspects are also important contents of the interview.

According to your chosen field, good luck! You did a good job.