Jacobs Engineering Group Process Engineer Interview Questions and Answers

Q1. P&ID, NPSH, Pump Hydraulics, DPDT
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Q2. Control Valve hydraulics
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Q1. Based on points mentioned in resume, asked to draw PFD or block diagram for processes on which you have worked and questions on that
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Q2. Problem on pump hydraulics and control valve hydraulics
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Q3. Questions on safety valves are expected, I have not did safety valves so those questions were skipped
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Q4. Questions on compressors
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Q5. Questions on relief systems
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Simple aptitude question s related to general maths identity and local technical questions

Q1. Hr will ask about previous experience. What will improve in this company
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Q1. Line sizing criteria
Ans. 
Line sizing criteria is based on factors like flow rate, pressure drop, velocity, and material compatibility.
• Consider the flow rate of the fluid being transported

• Calculate the pressure drop allowed in the system

• Determine the velocity of the fluid to prevent erosion or corrosion

• Ensure the material of the line is compatible with the fluid being transported
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Q1. Salary expectation
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Q1. Scope of work taken up in earlier company which are applicable for our company ( Alstom)
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Q2. Manufacturing & calibration related topics for Carbody fixture
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Q3. Paint RAL code & paint thickness applied on fixture.
Ans. 
The paint RAL code and thickness applied on the fixture is recorded for quality control purposes.
• The RAL code is a standardized color code system used in Europe.

• The paint thickness is measured using a paint thickness gauge.

• The recorded data is used to ensure consistency in the painting process and to meet customer specifications.

• Example: RAL 9005 (Jet Black) with a paint thickness of 50 microns.
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Q4. Make of clamps used on fixture
Ans. 
The clamps used on the fixture are made by various manufacturers.
• The make of clamps used on the fixture may vary depending on the specific fixture and its requirements.

• Some common manufacturers of clamps include Bessey, Irwin, and Jorgensen.

• The type of clamp used may also vary, such as C-clamps, bar clamps, or spring clamps.
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Q5. What is VSM graph and it's application
Ans. 
VSM graph is a tool used in Lean manufacturing to map out the current state of a process and identify areas for improvement.
• VSM stands for Value Stream Mapping

• It is used to visualize the flow of materials and information through a process

• Helps identify waste and inefficiencies in the process

• Can be used to plan and implement process improvements

• Example: A VSM graph can be used to identify bottlenecks in a manufacturing ...read more
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Q1. What challenges you feel you might face of you join madhepura ( it's a remote site hence the question)
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Q2. Why do you think you are suitable for the job and how your earlier experience will be useful forus ( Alstom)
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Q1. What is heat duty
Ans. 
Heat duty is the amount of heat energy required or removed in a process.
• Heat duty is a measure of the amount of heat energy needed to be added or removed in a process.

• It is typically measured in units such as BTU/hr or kW.

• Heat duty calculations are important in designing and optimizing heat exchangers, reactors, and other process equipment.

• For example, in a distillation column, the heat duty would refer to the amount o...read more
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