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

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
Ans. 
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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