Tata AutoComp Systems BIW Design Engineer Interview Questions and Answers

First round is aptitude test all type of questions asked like verbal, reasoning and Technical

Q1. Explain stress, strain curve diagram with example?
Ans. 
Stress-strain curve shows relationship between stress and strain in a material under tension.
• Stress-strain curve is a graphical representation of how a material deforms under stress.

• It typically consists of a linear elastic region, a yield point, plastic deformation, and ultimate failure.

• Example: Steel has a high yield strength, so its stress-strain curve shows a steep initial slope.

• Example: Rubber has a low yield stre...read more
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Q2. What is DOF? How many degrees of freedom from any object
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DOF stands for Degrees of Freedom. It refers to the number of independent parameters that define the configuration of an object.
• DOF is the number of ways a rigid body can move in 3D space.

• For a rigid body in 3D space, there are 6 degrees of freedom - 3 translational and 3 rotational.

• Examples of DOF include linear motion along x, y, z axes and rotational motion around x, y, z axes.
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Q1. Sheet metal defects?
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Q2. What is k factor in sheet metal?
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K factor in sheet metal is a constant representing the ratio of the location of the neutral axis to the material thickness.
• K factor determines how much a sheet metal part will stretch during bending.

• It is used in calculating the bend allowance, bend deduction, and other bending-related calculations.

• K factor values vary depending on the material type, thickness, and bending method.

• For example, a K factor of 0.5 means th...read more
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Q3. Plastic molding machine?
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Q4. Prevention plastic defects
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Q1. What is the role of npd person in industry?
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NPD person plays a crucial role in industry by leading the development of new products from concept to launch.
• Responsible for identifying market opportunities and consumer needs

• Leads cross-functional teams to develop new products

• Coordinates with various departments such as marketing, engineering, and manufacturing

• Manages the product development process from concept to commercialization

• Ensures products meet quality stan...read more
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Q2. How to solve manufacturing issue?
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To solve a manufacturing issue, identify the root cause, brainstorm solutions, implement changes, and monitor results.
• Identify the root cause of the issue by analyzing data and conducting tests.

• Brainstorm potential solutions with a cross-functional team to gather diverse perspectives.

• Implement changes based on the chosen solution, considering cost, time, and resources.

• Monitor the results of the changes to ensure they e...read more
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Q3. What is current & voltage?
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Current is the flow of electric charge in a circuit, measured in Amperes (A). Voltage is the electrical potential difference between two points in a circuit, measured in Volts (V).
• Current is the rate of flow of electric charge in a circuit

• Voltage is the electrical potential difference between two points in a circuit

• Current is measured in Amperes (A)

• Voltage is measured in Volts (V)

• Ohm's Law relates current, voltage, and
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Q4. Cad test on creo software version 7.0? 45 min cad test complete timing?
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Q5. Written interview? 45 min. If any person are required this written interview test paper. Pls mail. My mail id is- *****
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Q1. Heat treatment and GD&T related basic
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Cad test on catia software.

Q1. Plastic categories?
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Q2. Prevention of plastic defects?
Ans. 
Preventing plastic defects involves proper material selection, design optimization, and quality control measures.
• Selecting the right type of plastic for the application

• Optimizing the design to minimize stress concentrations

• Implementing proper molding techniques and parameters

• Conducting thorough quality control inspections

• Addressing any issues promptly to prevent defects from recurring
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Q3. When you make a design in any plastic component. what you are design consideration?
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Design considerations for plastic components include material selection, manufacturability, functionality, aesthetics, and cost.
• Material selection based on properties like strength, flexibility, and chemical resistance

• Consideration of manufacturability, such as moldability and ease of assembly

• Ensuring functionality requirements are met, such as mechanical strength or thermal resistance

• Aesthetics like color, texture, an...read more
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Q1. Solid Mechanics questions related to spring design, Stresses, etc
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Q1. Relocation, Previous Package, Family Background, Joining date
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Q1. General background
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Q1. CAD test will be there and Interview questions related to interior/exterior with respect to Design rules , Homologation
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Q1. Design rules related, master section related, Homologation related
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Q1. Part drawing 2D or 3D
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2D is a flat picture while 3D is one that has depth.
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Q2. Sketcher 2d drawings
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First of all we sketch 2d drawings after we assembly the complete object
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Q3. Assembly all part drawing
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When 2D sketch complete, after we calling parts to make complete assembly.
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Q4. Generative Sheet metal
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Q5. Generative drafting
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