IVL Dhunseri Petrochem Industries Process Engineer Interview Questions and Answers

Q1. Salary negotiation skills
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Q1. Your achievements
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Q2. We are only interested in your achievements
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Q1. How do you perform costing of molecule
Ans. 
Costing of a molecule involves determining the expenses incurred in its production.
• Identify the raw materials required for the synthesis of the molecule

• Determine the cost of each raw material

• Calculate the quantity of each raw material required for the synthesis

• Estimate the cost of labor and equipment used in the process

• Include overhead costs such as utilities, maintenance, and quality control

• Add profit margin to the to...read more
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Q2. How do you de-bottle neck the reactor
Ans. 
To de-bottle neck the reactor, increase flow rate, optimize catalyst usage, and improve heat transfer.
• Increase flow rate to improve reaction rate

• Optimize catalyst usage to increase efficiency

• Improve heat transfer to prevent hot spots and improve reaction rate

• Reduce reactor fouling by cleaning or replacing catalyst

• Increase reactor size or add parallel reactors if necessary
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Quantitative aptitude, Reasoning

Q1. What is the difference between centrifugal pump and reciprocating pump
Ans. 
Centrifugal pumps use impellers to move fluid while reciprocating pumps use pistons or diaphragms.
• Centrifugal pumps are more commonly used for high flow rate and low viscosity fluids while reciprocating pumps are used for low flow rate and high viscosity fluids.

• Centrifugal pumps are generally less expensive and require less maintenance than reciprocating pumps.

• Reciprocating pumps are better suited for applications wher...read more
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Q1. What is the difference between short term goals and long term goals
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Q2. Why should we hire you
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Q1. What is pump and it's characteristics?
Ans. 
A pump is a mechanical device used to move fluids from one place to another.
• Pumps can be classified into two types: positive displacement pumps and centrifugal pumps.

• Positive displacement pumps move fluid by trapping a fixed amount and forcing it into a discharge pipe.

• Centrifugal pumps use a rotating impeller to create a flow of fluid.

• Pump characteristics include flow rate, head, power, efficiency, and NPSH.

• Flow rate i...read more
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Q2. How to design heat exchanger
Ans. 
Designing a heat exchanger involves determining the heat transfer rate, selecting the appropriate type, and sizing the exchanger.
• Determine the heat transfer rate based on the process requirements

• Select the appropriate type of heat exchanger based on the fluid properties and process conditions

• Size the heat exchanger based on the heat transfer rate and available space

• Consider factors such as pressure drop, fouling, and c...read more
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Q1. Mostly technical questions to face in interviews.
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Q1. Unit operations involve in cooking
Ans. 
Unit operations involved in cooking include mixing, heating, cooling, and separation processes.
• Mixing ingredients to create a homogeneous mixture (e.g. stirring batter)

• Heating to cook food (e.g. boiling, baking)

• Cooling to set or solidify food (e.g. refrigerating)

• Separation processes like filtering or straining (e.g. separating solids from liquids)
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Q1. Salary negotiation skills
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