Petrofac Electrical Design Engineer Interview Questions and Answers

Q1. Explain the suction piping of pump?
Ans. 
Suction piping of a pump is the piping system that brings fluid into the pump from the source.
• Suction piping is designed to ensure a smooth flow of fluid into the pump without any air pockets or cavitation.

• The piping should be sized appropriately to prevent excessive pressure drop and maintain efficient pump operation.

• Proper alignment and support of the piping is crucial to prevent stress on the pump and ensure longevi...read more
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Q2. Why we used eccentric reducer in suction line with flat side up/
Ans. 
Eccentric reducers are used in suction lines with flat side up to prevent air pockets and improve flow efficiency.
• Eccentric reducers help in preventing air pockets from forming in the suction line

• Having the flat side up ensures that any trapped air can easily escape

• Improves flow efficiency by reducing turbulence and pressure drop

• Commonly used in applications where smooth flow is critical, such as pump suction lines
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Q3. What is figure 8?
Ans. 
Figure 8 is a type of knot commonly used in piping design to secure two ropes or cables together.
• Figure 8 knot is also known as a stopper knot due to its ability to prevent ropes from slipping through holes or other openings.

• It is easy to tie and untie, making it a popular choice for various applications in piping design.

• The figure 8 knot is often used in rock climbing, sailing, and rescue operations for its reliabilit
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Q1. Piping of control station
Ans. 
Control station piping is essential for regulating and monitoring the flow of fluids in a system.
• Control station piping connects various components such as valves, instruments, and equipment to control the flow of fluids.

• Proper design of control station piping ensures efficient operation and safety of the system.

• Consider factors like pressure, temperature, and material compatibility when designing control station pipin...read more
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Q2. Suction piping of pump
Ans. 
Suction piping of pump is crucial for efficient operation and performance.
• Suction piping should be designed to minimize friction losses and ensure proper flow to the pump.

• Proper sizing and layout of suction piping is essential to prevent cavitation and maintain pump efficiency.

• Consider factors such as pipe diameter, length, bends, and fittings when designing suction piping.

• Use smooth bore pipes, avoid sharp bends, and ...read more
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Mental ability test and maths aptitude

Energy sector and mobile good or baf

General knowlegde, Basic Aptitude, Domain Technical MCQ

Genx vs Genz, Altitude and comparsion

Q1. Components of Transformer
Ans. 
Components of a transformer include core, windings, and insulation.
• Core: Provides a path for magnetic flux

• Windings: Primary and secondary coils for inducing voltage

• Insulation: Prevents short circuits and ensures safety
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Q2. Question based on series and parallel resistance
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Basic electronics and electrical questions

Topic is About GenC and GenX