Tech Mahindra Design Engineer Interview Questions, Process, and Tips

Q1. What is gd&t and what is the use of gd&t
Ans. 
GD&T stands for Geometric Dimensioning and Tolerancing. It is a system for defining and communicating engineering tolerances.
• GD&T is a symbolic language used on engineering drawings to specify the allowable variations in form, size, and orientation of features.

• It helps to ensure that parts and assemblies will fit together and function properly.

• GD&T uses symbols such as concentricity, flatness, perpendicularity, and pos...read more
Answered by AI
Add your answer
Q2. Explain about 321 principle
Ans. 
The 321 principle is a design principle that involves prioritizing features based on their importance and impact.
• 3 - Must-have features that are essential for the product

• 2 - Should-have features that are important but not critical

• 1 - Nice-to-have features that are desirable but not necessary

• Prioritizing features based on their impact on the overall design and user experience
Answered by AI
Add your answer

Q1. Which part they will give you for remastering?
Add your answer

Q1. 1] Creating 3d model. 2] WHAT IS CASTING PROCESS 3] WHAT IS SHEET METAL 4] GD&T
Ans. 
Casting process involves pouring molten metal into a mold to create a desired shape. Sheet metal is metal formed into thin, flat pieces. GD&T stands for Geometric Dimensioning and Tolerancing.
• Casting process involves melting metal and pouring it into a mold to create a specific shape.

• Sheet metal is metal that has been formed into thin, flat pieces, often used in manufacturing for various applications.

• GD&T is a system f...read more
Answered by AI
Add your answer
Q2. WHAT IS GD&T IN MECHANICAL? DESCRIBLE ALL IN DETAILS .
Ans. 
GD&T stands for Geometric Dimensioning and Tolerancing, a system used in mechanical engineering to define and communicate engineering tolerances.
• GD&T is a symbolic language used on engineering drawings to specify the allowable variation in form, size, and orientation of features.

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

• GD&T uses symbols such as squares, circles, and triangles to...read more
Answered by AI
Add your answer
Q3. WHICH POINTS CONSIDERED DURING CASTING FEASIBLITY?
Ans. 
Points to consider during casting feasibility include material selection, part geometry, draft angles, wall thickness, and surface finish.
• Material selection - Choose a material suitable for the part's function and properties.

• Part geometry - Ensure the part can be easily cast without complex shapes or undercuts.

• Draft angles - Include draft angles to allow for easy removal of the part from the mold.

• Wall thickness - Maint...read more
Answered by AI
Add your answer
Q4. UG NX COMMANDS?
Ans. 
UG NX is a software used for designing, engineering, and manufacturing products.
• UG NX commands are used for creating and editing 3D models.

• Some common UG NX commands include Extrude, Revolve, Fillet, and Sweep.

• Commands can be accessed through the toolbar or by typing in the command line.

• UG NX also has advanced features like synchronous technology for flexible editing.

• Users can customize commands and create macros for r
Answered by AI
Add your answer

Q1. Walk me through your profile.
Add your answer
Q2. What are your responsibilities in your previous organisation?
Add your answer
Q3. Are you aware of GD&T?
Ans. 
Yes, GD&T stands for Geometric Dimensioning and Tolerancing, a system for defining and communicating engineering tolerances.
• GD&T is a system used in engineering to define and communicate tolerances for manufacturing and inspection.

• It uses symbols, such as concentricity, flatness, and perpendicularity, to specify geometric characteristics of parts.

• GD&T helps ensure that parts are manufactured and inspected consistently ...read more
Answered by AI
Add your answer
Q4. Which are the operations performed on sheet metal to increase the strength of it without changing thickness?
Ans. 
Operations like bending, folding, and crimping can increase the strength of sheet metal without changing its thickness.
• Bending: This process involves bending the sheet metal along a straight line to increase its strength.

• Folding: Folding the sheet metal creates multiple layers, increasing its strength.

• Crimping: Crimping involves creating small indentations or folds in the sheet metal to increase its rigidity.

• Rolling: R...read more
Answered by AI
Add your answer
Q5. Do you know modelling in CREO?
Add your answer
Q6. What are the parts that you've designed in creo and what is the application?
Ans. 
I have designed various parts in Creo for applications in automotive, aerospace, and consumer electronics industries.
• Designed engine components for automotive industry

• Designed aircraft structural components for aerospace industry

• Designed smartphone casings for consumer electronics industry
Answered by AI
Add your answer
Q7. From your experience what are the factors that needs to be considered while designing a component for sheet metal and plastic?
Ans. 
Factors to consider when designing components for sheet metal and plastic
• Material selection based on properties and application requirements

• Design for manufacturability to ensure ease of production and cost-effectiveness

• Consideration of material thickness and bending radius for sheet metal components

• Wall thickness, draft angles, and rib design for plastic components

• Integration of features like fastening methods, mounti...read more
Answered by AI
Add your answer
Q8. What are your salary expectations?
Add your answer

Q1. What do you know about MBD?
Ans. 
MBD stands for Model-Based Design, a methodology used in engineering to develop systems using models as the primary source of information.
• MBD involves creating a model of the system being designed, which can be used for simulation, verification, and automatic code generation.

• It helps in reducing development time and costs by allowing engineers to test and validate designs before physical implementation.

• Popular tools us...read more
Answered by AI
Add your answer
Q2. Do you know the symbol of position tolerance?
Ans. 
Yes, the symbol for position tolerance is a circle with a horizontal line through the middle.
• The symbol for position tolerance is a circle with a horizontal line through the middle

• It is used in engineering drawings to specify the allowable deviation in the location of a feature

• Position tolerance controls the location of a feature relative to a specified datum
Answered by AI
Add your answer

Online aptittude test - 1 hr

Q1. Introduce yourself questions on the projects that you have done questions on hobbies
Add your answer

Q1. Tell about yourself tell about company location behavior questions
Add your answer

Q1. 1. all about previous experience 2. tool test 3. plastic related questions
Add your answer
Q2. Tool test and plastic
Add your answer