1.What is the difference between shutdown and turnaround? 2.Explain about pressure vessel parts and its function? 3.What are the types of heat exchanger? 4.Explain about distillation column? 5.What is the purpose of paul rings? 6.Which type of welding techniques used in center groove gasket seating area in heat exchanger when it requires pre heating?

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Shutdown is a temporary stoppage of a process while turnaround is a planned shutdown for maintenance
Pressure vessel parts include shell, head, nozzle, manhole, and support. Their functions vary from holding the process fluid to providing access for maintenance
Types of heat exchangers include shell and tube, plate and frame, and air-cooled
Distillation column is a process equipment used to separate components of a mixture based on their boiling points
Paul rings are used in distillation columns to increase the surface area for better separation
Welding techniques used in center groove gasket seating area in heat exchanger include TIG, MIG, and SMAW

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