Petrofac Interview Questions, Process, and Tips

Q1. Work experience, country name, types of work, manpower handling etc
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Q2. Punjlloyd ltd ,brouge 2 project,abudhabi
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Q3. Allkulaib int kuwait ,subiya power plant
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Q4. Dyam punjlloyd ,saudi arabia ,satrop projects
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Q5. Towell eng, oman orpic (srip extension projects)
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Manpower nhandling only

Q1. WHOULD YOU JOIN WITH OUR TEAM?
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Q2. WHAT IS YOUR GOALL OF THIS COMPANY?
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Q1. Why transformer is rated in kva ?
Ans. 
Transformers are rated in kVA because it indicates the maximum amount of power that can be safely handled by the transformer.
• kVA rating is used to determine the maximum load that a transformer can handle without overheating.

• It takes into account both the voltage and current ratings of the transformer.

• kVA rating helps in selecting the right size of transformer for a specific application.

• For example, a 100 kVA transforme...read more
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Q2. Full form of MCCB?
Ans. 
MCCB stands for Molded Case Circuit Breaker.
• MCCB is a type of circuit breaker that is commonly used in electrical distribution systems.

• It provides protection against overcurrent and short circuit faults.

• MCCBs have adjustable trip settings for different levels of current protection.

• Examples of MCCB manufacturers include Schneider Electric, Siemens, and ABB.
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Graph based question. Duration: 45 mins

Q1. What are different types of sensors used in oil and gas industries?
Ans. 
Various sensors used in oil and gas industries include pressure sensors, temperature sensors, flow sensors, level sensors, and gas detectors.
• Pressure sensors - used to measure pressure in pipelines and equipment.

• Temperature sensors - monitor temperature levels in various processes.

• Flow sensors - measure the flow rate of liquids or gases in pipelines.

• Level sensors - detect the level of liquids in tanks or vessels.

• Gas de...read more
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Q2. What is HAZOP and HAZID?
Ans. 
HAZOP stands for Hazard and Operability Study, while HAZID stands for Hazard Identification.
• HAZOP is a systematic method to identify potential hazards and operability issues in a process plant.

• HAZID is a process used to identify hazards in a facility or operation before they become accidents.

• Both HAZOP and HAZID are important tools in risk assessment and management in engineering projects.
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Q3. What are P, PI,PID in process control?
Ans. 
P, PI, PID are types of controllers used in process control to regulate the output based on the input.
• P stands for Proportional controller, which adjusts the output based on the error signal.

• PI stands for Proportional-Integral controller, which not only adjusts based on error signal but also integrates the error over time.

• PID stands for Proportional-Integral-Derivative controller, which adjusts based on error signal, i...read more
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Q4. What do you know about Digital Electronics?
Ans. 
Digital Electronics is a branch of electronics that deals with digital signals and systems.
• Deals with digital signals (0s and 1s)

• Involves logic gates, flip-flops, and digital circuits

• Used in computers, calculators, digital watches, etc.

• Binary arithmetic and Boolean algebra are fundamental concepts
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Q5. What are level sensor, flow sensor, temperature sensor?
Ans. 
Level sensor, flow sensor, and temperature sensor are devices used to measure different physical parameters in various industries.
• Level sensor measures the level of a substance in a container or tank, such as liquid level sensors in water tanks.

• Flow sensor measures the flow rate of a fluid, like a flow meter in a pipeline.

• Temperature sensor measures the temperature of a system or environment, for example, a thermocoupl
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Q1. Saudi aramco engineering standards.
Ans. 
Saudi Aramco Engineering Standards are guidelines and specifications used in engineering projects for Saudi Aramco.
• Saudi Aramco Engineering Standards cover various aspects of engineering design, materials, construction, and operation.

• These standards ensure consistency, quality, and safety in all engineering projects undertaken by Saudi Aramco.

• Examples of areas covered by the standards include piping design, electrical ...read more
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Q2. Design related discussions
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Q3. Safe practices in design
Ans. 
Safe practices in design involve considering potential hazards, following regulations, and prioritizing safety.
• Identify potential hazards in the design process

• Follow industry regulations and standards for safety

• Prioritize safety over cost or convenience

• Regularly review and update safety protocols

• Include safety features in the design, such as emergency shut-off valves

• Consider environmental impact and sustainability in d
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Q4. Quality of deliverables
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Quality of deliverables is crucial for successful project completion.
• Ensuring accuracy and completeness of drawings and documents

• Adhering to project specifications and standards

• Regularly reviewing and revising deliverables to meet client requirements

• Seeking feedback from stakeholders to improve quality

• Using software tools effectively to enhance deliverables

• Maintaining clear communication with team members for consisten
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Q1. Foundation Engineering Questions
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Q2. Staad Modelling Parameters Questions
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Q1. Pressure drop criteria for liduiq and vapor phase for hydraulic calculation.
Ans. 
Pressure drop criteria for liquid and vapor phases are essential for accurate hydraulic calculations.
• Pressure drop criteria for liquid phase typically range from 0.5-2 psi per 100 feet of pipe length.

• Pressure drop criteria for vapor phase can vary depending on the specific application and design parameters.

• Factors such as flow rate, pipe diameter, fluid properties, and equipment specifications must be considered when d...read more
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Q1. Why you are changing job ?
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