Mercedes-Benz Research and Development India Interview Questions, Process, and Tips

Data Structures mid level problem from graph and Dynamic programming

Q1. 2 rounds of technical interview regarding DS and Project Related , Cloud
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Q2. Leetcode hard problem
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Q1. Managerial Round was more about technical and managerial
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Coding questions easy level leetcode

Q1. What is immutability in string? java oops concepts.
Ans. 
Immutability in strings means that once a string object is created, its value cannot be changed.
• String objects in Java are immutable, meaning their values cannot be modified after creation.

• Any operation that appears to modify a string actually creates a new string object.

• This helps in ensuring data integrity and thread safety.

• Example: String str = "Hello"; str.concat(" World"); // This does not change the value of str,...read more
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Q2. String concatenation program
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Q1. Tell me about work experience
Ans. 
I have 5 years of experience working as a product design engineer in the consumer electronics industry.
• Designed and developed new products from concept to production, ensuring functionality and manufacturability.

• Collaborated with cross-functional teams including marketing, engineering, and manufacturing to meet project goals.

• Utilized CAD software to create detailed 3D models and technical drawings for prototypes and pr...read more
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Q2. What exceptional thing you have done in your previous organization?
Ans. 
Implemented a new design process that reduced product development time by 20%.
• Introduced a streamlined design review process to identify and address issues early on

• Collaborated with cross-functional teams to ensure smooth communication and efficient decision-making

• Utilized advanced CAD software to create detailed 3D models for better visualization

• Implemented rapid prototyping techniques to quickly test and iterate on d
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Q1. Tell me about yourself
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I am a product design engineer with a passion for creating innovative and user-friendly products.
• Experienced in using CAD software such as SolidWorks and AutoCAD

• Skilled in prototyping and testing designs to ensure functionality

• Strong understanding of materials and manufacturing processes

• Collaborative team player with excellent communication skills
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Q2. What is your salary expectations?
Ans. 
My salary expectations are in line with industry standards for a product design engineer with my level of experience.
• Research industry standards for product design engineer salaries

• Consider my level of experience and skills

• Factor in location and cost of living

• Be prepared to negotiate based on benefits and opportunities for growth
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Q1. System responsible
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Q2. How to handle system
Ans. 
Handling a system involves monitoring, troubleshooting, and optimizing its performance.
• Regularly monitor system performance and resource usage

• Troubleshoot and resolve any issues that arise

• Optimize system configurations for better performance

• Implement security measures to protect the system

• Document system changes and configurations for future reference
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Q1. Stiffness matrix of 1dimensional beam element in FEM Stress strain curve in depth
Ans. 
Explaining stiffness matrix of 1D beam element and stress-strain curve in FEM.
• Stiffness matrix of 1D beam element is a 2x2 matrix that relates the nodal displacements to the nodal forces.

• The stress-strain curve in FEM is used to determine the material properties of the beam element.

• The curve is obtained by applying a load to the beam and measuring the resulting strain.

• The slope of the curve is the modulus of elasticity...read more
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Q2. What is Resonance ? How do we control it?
Ans. 
Resonance is the phenomenon of oscillation at a specific frequency. It can be controlled by damping or changing the frequency.
• Resonance occurs when a system is subjected to an external force at its natural frequency.

• It can cause excessive vibrations and damage to the system.

• Resonance can be controlled by adding damping to the system or by changing the frequency of the external force.

• Examples of resonance include a swin...read more
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Q1. Please explain something which is not mentioned in your resume
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Q2. System design questions
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Q3. Aptitude level puzzles
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