JK Tyres Design Manager Interview Questions and Answers

Q1. Sheet metal defects?
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Q2. What is k factor in sheet metal?
Ans. 
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. Explain various GD&T
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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. What are factore that affecting the NVH
Ans. 
Factors affecting NVH include vehicle design, materials used, engine type, and road conditions.
• Vehicle design: Shape, size, weight distribution

• Materials used: Quality of materials, insulation

• Engine type: Number of cylinders, power output

• Road conditions: Smoothness, tire type
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Q2. Noise, Vibration, and Harshness (NVH) in gearboxes are influenced by several factors, which can broadly be categorized into design, material, manufacturing, and operational factors. Here are some key facto...read more
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Addressing NVH in gearboxes involves optimizing design, material, manufacturing, and operational factors.
• Optimizing gear geometry like tooth profile and helix angle can reduce noise.

• Proper material quality and heat treatment can minimize vibrations.

• Precision machining and assembly quality are crucial for reducing NVH.

• Consider load conditions, lubrication, and operational speed for NVH control.

• Environmental factors like...read more
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Q1. EPLAN P8 Macro creation?
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Q2. EPLAN version and forms generation?
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EPLAN is a software used for electrical design engineering. It allows for easy generation of forms.
• EPLAN is a popular software used for electrical design engineering

• It allows for easy generation of forms such as bills of materials, wiring diagrams, and terminal diagrams

• EPLAN also has a version control system to manage changes and revisions

• The latest version of EPLAN is EPLAN Electric P8

• EPLAN also offers integration wit...read more
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Written test related to casting and plastic

Q1. Related to experience
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Q1. Expectation and why you want tomove
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