Marelli Senior R&D Engineer Interview Questions and Answers

Q1. Explain various GD&T
Ans. 
Geometric Dimensioning and Tolerancing (GD&T) is a system for defining and communicating engineering tolerances.
• GD&T is used to specify the allowable variations in form, size, and orientation of features on a part.

• It uses symbols, such as concentricity, flatness, and perpendicularity, to communicate the desired tolerances.

• GD&T helps ensure that parts fit together properly and function as intended.

• Examples of GD&T symbo...read more
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Q2. Explain DFM, DFS, DFA
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DFM, DFS, and DFA stand for Design for Manufacturing, Design for Service, and Design for Assembly, respectively.
• DFM focuses on designing products that are easy and cost-effective to manufacture.

• DFS focuses on designing products that are easy to service and maintain.

• DFA focuses on designing products that are easy to assemble.

• Consideration of DFM, DFS, and DFA principles can lead to more efficient and cost-effective prod...read more
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Q1. Few questions about SFD and BMD
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Tough one to attempt

Q1. Asked questions related to few mechanical engineering topics
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Q1. Rate yourself for power electronics circuit designing
Ans. 
I rate myself 8 out of 10 for power electronics circuit designing.
• I have extensive experience in designing power electronics circuits for various applications.

• I am proficient in using simulation tools like LTSpice and MATLAB for circuit analysis and design.

• I have designed and implemented several power electronics circuits, including DC-DC converters, inverters, and motor drives.

• I keep myself updated with the latest tre...read more
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Q2. Currently Which kind of work you are doing? Which technique you follow to solve if any problems occure in the team
Ans. 
I am currently working as a Sr. Engineer in design.
• I am responsible for designing and developing new products.

• I collaborate with cross-functional teams to gather requirements and ensure design feasibility.

• I use various techniques like brainstorming, prototyping, and simulation to solve problems.

• I encourage open communication and teamwork to address any issues that arise within the team.

• I also conduct regular design rev...read more
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Written test related to casting and plastic

Q1. Related to experience
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Q1. Expectation and why you want tomove
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Q1. Part drawing 2D or 3D
Ans. 
2D is a flat picture while 3D is one that has depth.
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Q2. Sketcher 2d drawings
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First of all we sketch 2d drawings after we assembly the complete object
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Q3. Assembly all part drawing
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When 2D sketch complete, after we calling parts to make complete assembly.
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Q4. Generative Sheet metal
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Q5. Generative drafting
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Q1. Plastic fundamentals, connector design theory, Focused around the CV.
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Q1. CAD test for connector in Soidworks or CATIA
Ans. 
Yes, a CAD test for connector in Solidworks or CATIA can be conducted.
• Create a 3D model of the connector using Solidworks or CATIA

• Ensure the model meets the required specifications and tolerances

• Test the model for functionality and durability

• Make necessary modifications based on test results

• Repeat the testing process until the model meets all requirements
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Q1. Personal interview was taken. CV again focused . HR questions were also asked.
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