RiDh Engineering Services Design Engineer Interview Questions and Answers

Q1. Regarding questions about my nx experience & BIW Experience.
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Q1. What is Side member & cross member in BIW?
Ans. 
Side member & cross member are structural components in a car's Body in White (BIW) that provide strength and support to the vehicle.
• Side member: Longitudinal structural component that runs along the sides of the vehicle, providing support and rigidity.

• Cross member: Horizontal structural component that connects the side members, adding strength and stability to the vehicle.

• Examples: Side members can be found on the sid...read more
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Q2. What is Annotations, PMI & GD& T?
Ans. 
Annotations, PMI & GD&T are tools used in engineering to communicate design and manufacturing requirements.
• Annotations are notes or labels added to a drawing to provide additional information.

• PMI (Product Manufacturing Information) includes dimensions, tolerances, materials, and other specifications needed for manufacturing.

• GD&T (Geometric Dimensioning and Tolerancing) is a system for defining and communicating enginee...read more
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Q3. How to decide Bead & dart in member of BIW?
Ans. 
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.

• Use simulation software to optimize bead and dart...read more
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Q4. Which method are used for making biw?
Ans. 
Various methods are used for making BIW (Body in White) including hydroforming, stamping, welding, and bonding.
• Hydroforming: shaping metal using fluid pressure

• Stamping: pressing metal into a desired shape

• Welding: joining metal pieces together using heat

• Bonding: using adhesives to attach metal components
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Q5. Diff b/w Hydroforming & forming?
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Hydroforming uses fluid pressure to shape metal while forming uses mechanical force.
• Hydroforming uses fluid pressure to shape metal while forming uses mechanical force

• Hydroforming allows for complex shapes with uniform wall thickness, while forming may result in uneven thickness

• Hydroforming is more cost-effective for large production runs, while forming is better for smaller quantities

• Examples of hydroforming include a...read more
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Q6. What is GD& T & how it practical use it?
Ans. 
GD&T stands for Geometric Dimensioning and Tolerancing. It is a system for defining and communicating engineering tolerances.
• GD&T is used to specify the allowable variations in form, size, and orientation of part features.

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

• GD&T uses symbols, such as position, concentricity, and flatness, to communicate tolerance requirements.

• It is commonly used in...read more
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Q7. What is Benchmarking & Master section?
Ans. 
Benchmarking is the process of comparing one's business processes and performance metrics to industry bests or best practices from other companies.
• Benchmarking helps identify areas for improvement and opportunities for innovation.

• It involves analyzing data and metrics to understand how well a company is performing compared to others in the industry.

• Master section refers to a standardized set of criteria or best practic...read more
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Q8. What is LMC & MMC? Least Material Condition & Max Material Condition
Ans. 
LMC & MMC refer to the conditions in which a part has the least or maximum amount of material respectively.
• LMC is the condition where a part has the least amount of material, ensuring the smallest size of the feature.

• MMC is the condition where a part has the maximum amount of material, ensuring the largest size of the feature.

• These conditions are important in engineering design to ensure proper fit and function of part...read more
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Q9. How to decide Sheet metal thickness considerations?
Ans. 
Sheet metal thickness is decided based on factors like material type, part geometry, function, and cost.
• Consider material type and its properties (e.g. strength, ductility)

• Analyze part geometry and required structural integrity

• Evaluate function of the part and potential stresses it will endure

• Factor in cost implications of different thickness options

• Consult industry standards and guidelines for recommended thickness ra
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Questions related to Core subjects

Q1. Diodes Transistors and digital circuits
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Q2. Star delta circuits symbols
Ans. 
Star delta circuits symbols represent the connections used in motor control circuits.
• Star symbol (Y) represents the connection of three windings in a star configuration

• Delta symbol (Δ) represents the connection of three windings in a delta configuration

• The star-delta starter is a common application of these symbols in motor control circuits
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Q1. Work life balance
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Q2. Shifts workings choice ?
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Q1. Introducing and personality
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Technical questions about the Revit and MEP

Q1. What are your expectations
Ans. 
I expect challenging projects, opportunities for growth, supportive team environment, and work-life balance.
• Challenging projects that allow me to utilize my skills and knowledge

• Opportunities for professional growth and development

• Supportive team environment where collaboration and communication are valued

• Work-life balance to ensure productivity and well-being
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Q2. Your past experience
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I have 5 years of experience working as a Design Engineer in the automotive industry.
• Designed components for new vehicle models

• Collaborated with cross-functional teams to ensure design met requirements

• Utilized CAD software to create detailed drawings

• Performed testing and analysis on prototypes

• Implemented design changes based on feedback and testing results
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Q1. Telephonic interview
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Q2. Regarding the design
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Quantative aptitude /verbal and logical reasoning

Q1. Extempore+technical questions
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Q2. Questions on power system
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Q3. Questionson electrical machines
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