Praj Industries Interview Questions, Process, and Tips

Q1. Introduction about yourself?
Ans. 
I am a dedicated and experienced Commissioning Engineer with a strong background in electrical systems and project management.
• Bachelor's degree in Electrical Engineering

• 5+ years of experience in commissioning electrical systems

• Proficient in project management software such as Primavera P6

• Strong problem-solving skills and attention to detail

• Excellent communication and teamwork abilities
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Q2. Why changing job?
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Q1. Distillery Based quastion
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Q2. 1. What are the types of column, different types of stages/ plates, types of packing 2. troubleshooting in the column. 3. explain troubleshooting with particular example. for commissioning at entry level.
Ans. 
The types of columns in commissioning engineering include packed columns and tray columns. Troubleshooting in columns involves identifying and resolving issues with pressure, temperature, flow, and separation efficiency.
• Types of columns: packed columns and tray columns

• Types of stages/plates: bubble cap trays, sieve trays, valve trays

• Types of packing: structured packing, random packing

• Troubleshooting in columns: pressur...read more
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Q3. Hazop based case study (basic level)
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Q1. Previous experience and back ground
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Q2. Salary expectations and family details
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Technical questions regarding chemical engineering and equipment design.

Q1. Design of Heat exchanger ?
Ans. 
Heat exchanger design involves selecting appropriate materials, determining heat transfer coefficients, and optimizing flow rates.
• Select appropriate materials based on temperature, pressure, and fluid properties

• Determine heat transfer coefficients for both fluids

• Optimize flow rates to maximize heat transfer while minimizing pressure drop

• Consider factors such as fouling, corrosion, and maintenance

• Common types include sh...read more
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Q2. Tube pitch of shell and tube heat exchanger?
Ans. 
Tube pitch is the distance between the center of two adjacent tubes in a shell and tube heat exchanger.
• Tube pitch affects the heat transfer rate and pressure drop in the heat exchanger.

• It is typically between 1.25 and 2 times the outside diameter of the tubes.

• A larger tube pitch can reduce fouling and make cleaning easier, but may require more tubes and increase the size of the heat exchanger.

• The tube pitch should be o...read more
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Q3. Software knowledge like HTRI,Auto Cad,UNISIM,Pipenet
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Q1. Tell me About yourself?
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Q2. Why we recruit you , what is your strength?
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Where do you see yourself in 5 years?
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Q4. Why should we hire you?
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Q5. Tell me about yourself.
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Q1. Required technical sound
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Q1. Salary negotiation
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