Samvardhana Motherson Group Wiring Harness 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?
Ans. 
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. Explain various GD&T
Ans. 
Geometric Dimensioning and Tolerancing (GD&T) is a system for defining and communicating engineering tolerances.
• GD&T is used to specify the allowable variations in form, size, and orientation of features on a part.

• It uses symbols, such as concentricity, flatness, and perpendicularity, to communicate the desired tolerances.

• GD&T helps ensure that parts fit together properly and function as intended.

• Examples of GD&T symbo...read more
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Q2. Explain DFM, DFS, DFA
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DFM, DFS, and DFA stand for Design for Manufacturing, Design for Service, and Design for Assembly, respectively.
• DFM focuses on designing products that are easy and cost-effective to manufacture.

• DFS focuses on designing products that are easy to service and maintain.

• DFA focuses on designing products that are easy to assemble.

• Consideration of DFM, DFS, and DFA principles can lead to more efficient and cost-effective prod...read more
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Q1. How many years of experience you have?
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Tough one to attempt

Q1. Asked questions related to few mechanical engineering topics
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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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Technical,aptitude, case study other related test

Simply convey thoughts about the topic given

Q1. Questions related to Tyre compounding and testing
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Q2. Describe Previous job responsibilities, experience and work culture ?
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Q3. Tell us about future goals ?
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Q1. About project work and personal details
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