Mercedes-Benz Research and Development India Product Design Engineer Interview Questions and Answers

Q1. Regarding Asking my previous Experience!
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Q1. What is Side member & cross member in biw?
Ans. 
Side member and cross member are structural components in the Body in White (BIW) of a vehicle, providing support and rigidity.
• Side members are longitudinal structural components that run along the sides of the vehicle, providing support and connecting various components.

• Cross members are structural components that run across the width of the vehicle, connecting the side members and providing additional rigidity.

• These ...read more
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Q2. What is Annotations, PMI?
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Annotations, PMI stands for Product Manufacturing Information, which includes dimensions, tolerances, materials, and other specifications on a technical drawing.
• PMI is used to communicate important information about a product's design and manufacturing requirements.

• Annotations are typically added to CAD drawings to provide clarity and guidance to manufacturers.

• Examples of PMI include geometric dimensioning and toleranc...read more
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Q3. How to decide Bead & dart in biw member?
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Beads and darts are decided based on design requirements, manufacturing constraints, and structural considerations in BIW members.
• Consider design requirements such as stiffness, strength, and crashworthiness.

• Take into account manufacturing constraints like tooling limitations and cost.

• Evaluate structural considerations such as load distribution and stress concentrations.

• Examples: Beads are often used to increase stiffn...read more
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Q4. Which method are used for making biw mean manufacturing process?
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Various methods such as stamping, welding, and bonding are used for making BIW in manufacturing processes.
• Stamping: involves pressing a sheet of metal into a die to create the desired shape

• Welding: joining metal pieces together using heat or pressure

• Bonding: using adhesives to attach metal components

• Riveting: joining metal parts using rivets

• Hydroforming: shaping metal using fluid pressure
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Q5. Diff b/w Hydroforming & forming?
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Hydroforming uses fluid pressure to shape metal, while forming involves shaping metal using mechanical force.
• Hydroforming uses fluid pressure to shape metal into complex shapes

• Forming involves shaping metal using mechanical force such as bending, stretching, or compressing

• Hydroforming is often used in automotive industry for creating lightweight and strong components

• Forming can be done through processes like stamping,
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Q6. GD& T use it?
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Yes, GD&T (Geometric Dimensioning and Tolerancing) is used in engineering to communicate design specifications.
• GD&T is a symbolic language used on engineering drawings to specify the allowable variations in form, size, and orientation of features.

• It helps ensure that parts fit together correctly and function properly.

• GD&T can improve quality, reduce costs, and lead to more efficient manufacturing processes.

• Examples of ...read more
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Q7. Benchmarking & Master section... In design?
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Benchmarking and master section are important in design for setting standards and improving performance.
• Benchmarking involves comparing design processes, products, or performance against industry standards or competitors.

• Master section refers to a standardized section of a design that serves as a reference point for consistency and quality.

• Both benchmarking and master section help in setting benchmarks, identifying are...read more
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Q8. What is LMC & MMC (Least Material Condition & Max Material Condition) Explain with example?
Ans. 
LMC & MMC are GD&T concepts used to define the extreme sizes of a part. LMC is the smallest size while MMC is the largest size.
• LMC (Least Material Condition) is the condition where a part has the least amount of material, ensuring the smallest size possible.

• MMC (Max Material Condition) is the condition where a part has the most amount of material, ensuring the largest size possible.

• GD&T uses LMC and MMC to establish th...read more
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Q1. Basic of fea and cae
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Q2. Question from simple components to critical component
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Q2. Why you want to work here
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