National Organic Chemical Industries Process Engineer Interview Questions and Answers

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. 1. Ongoing work and project related
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Q2. 2. Basic chemistry and chemical engineering questions
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Q3. 3. Troubleshooting and risk assessment study
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Q1. Tell me about yourself
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Q2. Tell me what you did in your BTech and MTech Projects (questions related to projects were asked). What is the scope of the project in real world application?
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Q3. Fundamentals of chemistry (class 12 level: structure, properties etc)
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Q1. How do you see UPL as your employer?
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Q2. How do you think you can contribute to UPL growth?
Ans. 
I can contribute to UPL growth by utilizing my process engineering skills to optimize production processes and reduce costs.
• Identifying areas for process improvement and implementing solutions

• Collaborating with cross-functional teams to streamline processes

• Analyzing data to identify trends and opportunities for optimization

• Implementing cost-saving measures without compromising quality

• Staying up-to-date with industry tr...read more
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Q3. Are you willing to work in a remote location?
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Q1. Mass balance question
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Q2. Basic organic chemistry question
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Q1. Design Steps of a shell and tube heat exchanger?
Ans. 
Design steps for a shell and tube heat exchanger
• Determine the heat duty and fluid flow rates

• Select the appropriate materials for the tubes and shell

• Determine the number of tube passes and tube layout

• Design the baffles and tube supports

• Calculate the heat transfer area and pressure drop

• Specify the inlet and outlet connections

• Prepare detailed fabrication drawings
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Q2. Pressure Drop in column?
Ans. 
Pressure drop in a column refers to the decrease in pressure as fluid flows through the column.
• Pressure drop is caused by frictional resistance to flow and changes in direction of the fluid.

• It can be calculated using Bernoulli's equation or by measuring pressure at different points in the column.

• Pressure drop can affect the efficiency of the column and may require adjustments to the operating conditions.

• Factors that ca...read more
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Q3. What is HAZOP, MSDS?
Ans. 
HAZOP is a hazard and operability study, while MSDS is a material safety data sheet.
• HAZOP is a systematic and structured approach to identify potential hazards and operability problems in a process plant.

• MSDS is a document that provides information on the properties of hazardous chemicals and how to handle them safely.

• HAZOP involves a team of experts analyzing the process design and identifying potential deviations tha...read more
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Q1. It is on previous experience base.
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Q1. Tell me about yourself.
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Q1. What you do for our industry?
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Q2. What is your importance for our industry ?
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Q3. Which chemical will upl 5 produce?
Ans. 
UPL 5 will produce 1,3-dichloropropene.
• UPL 5 is a chemical used in agriculture as a soil fumigant.

• It will produce 1,3-dichloropropene upon application.

• 1,3-dichloropropene is a colorless liquid with a chloroform-like odor.
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Q1. Introduction and working experience
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Technical for 1 hour

Q1. Bernoulli's equation and its interpretation.
Ans. 
Bernoulli's equation relates the pressure, velocity, and elevation of a fluid in a steady flow.
• Describes the conservation of energy in a fluid flow system

• Equation: P + 0.5 * rho * v^2 + rho * g * h = constant

• Pressure, velocity, and elevation terms are related in the equation

• Used in various engineering applications such as fluid dynamics and aerodynamics
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