Congruex Asia Pacific Senior Design Engineer Interview Questions and Answers

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
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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
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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
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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
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Q1. Tell me about your projects did in previous company..
Ans. Prepare everything in the Resume, dont fake anything in resume.
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Q2. Some technical question related to contains of the resume.
Ans. Prepare well the contains of your resume.
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Q1. Walk me through your profile.
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Q2. What are your responsibilities in your previous organisation?
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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
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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
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Q5. Do you know modelling in CREO?
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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
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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
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Q8. What are your salary expectations?
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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
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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
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Q1. What is plastic thickness??
Ans. 
Plastic thickness refers to the measurement of the distance between two surfaces of a plastic material.
• Plastic thickness is typically measured in millimeters or inches.

• The thickness of plastic can vary depending on the type of plastic and its intended use.

• Common examples of plastic thickness include 1mm, 2mm, 3mm, etc.
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Q2. What are plastic defects
Ans. 
Plastic defects are imperfections or flaws in plastic materials that can affect their performance and appearance.
• Common plastic defects include air bubbles, sink marks, warping, and flow lines.

• Air bubbles are trapped pockets of air within the plastic that can weaken the material.

• Sink marks are depressions on the surface caused by uneven cooling.

• Warping is when the plastic material bends or distorts during cooling.

• Flow ...read more
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Q1. What is k factor & y factor
Ans. 
K factor and Y factor are parameters used in sheet metal bending to calculate the bend allowance and bend deduction.
• K factor is the ratio of the neutral axis to the material thickness in a bend.

• Y factor is the ratio of the inside radius of the bend to the material thickness.

• K factor is used to calculate bend allowance, while Y factor is used to calculate bend deduction.

• Both factors are important in determining the fina
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Q2. What is your roles and responsibility in current company
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Q1. Introduce yourself
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Q2. Technical questions
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General logical questions

Q1. Design technical
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Q2. GD&T and design test
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