Process Control Engineer

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Process Control Engineer Interview Questions and Answers

Updated 7 Jul 2024

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Q1. Chargemix for different grades of SG & CI

Ans.

Chargemix refers to the combination of raw materials used to produce different grades of SG (Spheroidal Graphite) and CI (Cast Iron).

  • Chargemix composition varies based on the desired properties of the final product

  • Factors to consider include carbon content, silicon content, alloying elements, and impurities

  • Example: For high strength ductile iron, a chargemix with higher levels of carbon and silicon may be used

Q2. Green sand properties

Ans.

Green sand properties are important for molding in foundry processes.

  • Green sand is a mixture of sand, clay, water, and additives used in metal casting.

  • The properties of green sand include grain size, clay content, moisture content, and additives.

  • Proper green sand properties are crucial for achieving good mold quality and casting results.

  • Examples of green sand properties to consider are permeability, compactibility, and green compression strength.

Q3. Architecture of Control Logix

Ans.

Control Logix is a programmable automation controller used in industrial automation systems.

  • Control Logix is part of the Logix family of controllers by Rockwell Automation.

  • It uses a tag-based structure for programming and configuration.

  • Control Logix supports various communication protocols such as Ethernet/IP and ControlNet.

  • It offers high-speed processing capabilities for real-time control applications.

Q4. Lining of furnace

Ans.

Lining of furnace is essential for protecting the furnace walls from high temperatures and corrosion.

  • Lining materials include refractory bricks, ceramic fiber, and castable refractories.

  • The lining must be chosen based on the temperature and chemical composition of the materials being processed in the furnace.

  • Regular maintenance and inspection of the lining is necessary to ensure its effectiveness and longevity.

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Q5. Recovery of alloys

Ans.

Recovery of alloys involves separating different metals from a mixture for reuse or recycling.

  • Alloys can be recovered through processes like smelting, leaching, and electrolysis.

  • Smelting involves heating the alloy to separate the metals based on their melting points.

  • Leaching involves dissolving the alloy in a solvent to extract specific metals.

  • Electrolysis uses an electric current to separate metals based on their reactivity.

  • Recovering alloys is important for recycling and re...read more

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