Petrofac Engineering India PDS Designer Interview Questions and Answers

Q1. No questions only politics
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Q2. Only Politics no value for knowledge.
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Q3. Related questions about your family background and mounding
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Only about Technical planning, progress,execution, local issue,site situation previous job related

Last project experience was the complete case study

Q1. Why you come in HPL?
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Q1. Plant tank farm and utility
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Q2. Tell about PSA cycle
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Q1. What is cavitation in centrifugal pump? How do you mean by NPSH?
Ans. 
Cavitation is the formation of vapor bubbles in a centrifugal pump due to low pressure. NPSH stands for Net Positive Suction Head.
• Cavitation occurs when the pressure at the pump inlet drops below the vapor pressure of the liquid, causing the formation of vapor bubbles.

• These vapor bubbles collapse when they reach higher pressure areas, leading to damage to the pump impeller and reduced pump performance.

• Cavitation can be...read more
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Q2. What is surging? How do you manage lubrication in different rotating equipment?
Ans. 
Surging is a phenomenon in rotating equipment where the flow rate becomes unstable.
• Surging occurs when the flow rate through a rotating equipment fluctuates due to changes in operating conditions.

• It can lead to reduced efficiency, increased wear and tear, and potential damage to the equipment.

• To manage lubrication in different rotating equipment, it is important to monitor and control the flow rate, viscosity, and temp...read more
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Q1. 3d need split core cavity
Ans. 
A split core cavity is necessary for creating 3D designs.
• Split core cavity allows for easier removal of the final product from the mold.

• It also allows for more complex designs to be created.

• Examples include intricate jewelry designs and detailed automotive parts.

• Split core cavity can be achieved through various methods such as using sliders or lifters.

• It is important to consider the material being used and the desired
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Q2. Shrinkage of plastics
Ans. 
Shrinkage of plastics is a common issue in injection molding.
• Shrinkage occurs when the plastic cools and solidifies, causing it to contract.

• Factors affecting shrinkage include material type, mold design, and processing conditions.

• Compensating for shrinkage can be done by adjusting the mold or adding more material.

• Examples of plastics prone to shrinkage include ABS, polycarbonate, and nylon.
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All technical skills and your previous experience as well as field experience.

Q1. How to reduce cost of product
Ans. 
Reducing product cost can be achieved through various methods such as optimizing production processes, sourcing cheaper materials, and reducing waste.
• Optimize production processes to increase efficiency and reduce labor costs

• Source cheaper materials without sacrificing quality

• Reduce waste by implementing lean manufacturing principles

• Negotiate better prices with suppliers

• Streamline supply chain to reduce transportation ...read more
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