Process Control Engineer Interview Questions and Answers

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

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.

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.

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.