Nagarjuna Fertilizers and Chemicals QA QC Engineer Interview Questions and Answers

Q1. Diatillation column and type
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Q2. Evaporators and all laws
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Q3. Heat exchangers and types
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Heat exchangers are devices used to transfer heat between two or more fluids.
• Heat exchangers are commonly used in various industries such as power plants, chemical plants, and HVAC systems.

• There are several types of heat exchangers including shell and tube, plate, and finned tube heat exchangers.

• Shell and tube heat exchangers consist of a shell with multiple tubes inside, allowing one fluid to flow through the tubes wh...read more
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Q4. Extractor and types of pump and flow
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Extractor is a device used to remove substances from a mixture. Types of pumps include centrifugal, reciprocating, and rotary pumps. Flow refers to the rate at which a fluid moves.
• Extractor is commonly used in industries such as chemical, pharmaceutical, and food processing.

• Centrifugal pumps are commonly used for low viscosity fluids, while reciprocating pumps are used for high pressure applications.

• Flow can be measure...read more
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Q5. Thermal heat capcity boiling point
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Economicall strength of india

Q1. Share details of your previous job.
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Q2. What are your strengths and weaknesses?
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Q3. Tell me about yourself.
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Q1. Questions on transformers
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Q2. Working of relays and types of relats
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Relays are electrically operated switches that control high power circuits with low power signals. Types include electromechanical, solid state, and reed relays.
• Relays work by using an electromagnet to mechanically switch contacts open or closed.

• Types of relays include electromechanical relays, solid state relays, and reed relays.

• Electromechanical relays use an electromagnet to operate mechanical contacts.

• Solid state r...read more
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Q3. Star and delta stators
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Q4. What is single line Diagram
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A single line diagram is a simplified diagram that shows the electrical connections and components of a power system in a single line.
• It is used to represent the electrical system in a simplified manner.

• It shows the connections between various components like generators, transformers, circuit breakers, etc.

• It helps in understanding the overall layout of the system and how different components are interconnected.

• It is c...read more
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Q1. Distillation, reaction, solid handling
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Q2. Anf,drayer pkg system
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Q3. WFE , LLE tower & utility lineup
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Q4. DCS handling & troubleshooting
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Q1. Company ralated and policy
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Q1. What is relative volatility
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Relative volatility is a measure of how easily a component in a mixture can be separated from other components through distillation.
• Relative volatility is calculated as the ratio of the vapor pressures of the two components being separated.

• It is used in distillation processes to determine the efficiency of separation.

• Higher relative volatility indicates easier separation of components.

• For example, in the separation of ...read more
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Q1. What is Distillation
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Distillation is a process of separating components of a liquid mixture based on differences in boiling points.
• Distillation involves heating the liquid mixture to create vapor, then cooling the vapor to condense it back into liquid form.

• The components with lower boiling points will vaporize first and be collected, while the components with higher boiling points will remain in liquid form.

• Examples of distillation include...read more
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Q2. Difference absorber Column and strippers column
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Absorber column absorbs a gas into a liquid, while a stripper column removes a component from a liquid.
• Absorber column is used to absorb a gas into a liquid, while a stripper column is used to remove a component from a liquid.

• Absorber column operates at a higher pressure than the stripper column.

• Absorber column is used in processes like gas sweetening, while stripper column is used in processes like solvent recovery.

• Ex...read more
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