Process Control Engineer
Process Control Engineer Interview Questions and Answers
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Q1. Chargemix for different grades of SG & CI
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
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
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
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.
Q5. Recovery of alloys
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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