Kohlex Senior Mechanical Design Engineer Interview Questions and Answers

Q1. What is stress strain curve
Ans. 
Stress strain curve shows the relationship between stress (force applied) and strain (resulting deformation) in a material.
• It is a graphical representation of the behavior of a material under loading.

• The curve typically consists of elastic, plastic, and fracture regions.

• The slope of the curve in the elastic region is the material's Young's Modulus.

• The ultimate tensile strength and yield strength can be determined from ...read more
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Q2. What is the process of production
Ans. 
The process of production involves converting raw materials into finished products through various stages.
• Designing the product based on requirements and specifications

• Selecting materials and components needed for production

• Manufacturing the product using machinery and tools

• Testing and quality control to ensure the product meets standards

• Packaging and distribution of the finished product
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Q1. Describe your most recent Projects.
Ans. 
Designed and implemented a new cooling system for a manufacturing plant.
• Researched different cooling technologies and their efficiency

• Collaborated with a team of engineers to design the system layout

• Performed simulations to optimize the cooling system performance

• Managed the installation and testing of the new system
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Q2. Explain Design Methodology
Ans. 
Design methodology is a systematic approach to solving engineering problems by following a series of steps.
• Design methodology involves defining the problem, researching, brainstorming solutions, selecting the best solution, prototyping, testing, and refining.

• It helps ensure that the final product meets the desired requirements and functions effectively.

• Examples of design methodologies include Six Sigma, Lean Manufactur
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Q3. Explain 3,2,1 principle of GD &t
Ans. 
The 3,2,1 principle of GD&T is a method used to establish a datum reference frame for geometric dimensioning and tolerancing.
• 3 points are used to establish a datum plane, 2 points to establish a datum line, and 1 point to establish a datum point.

• The 3,2,1 principle ensures that the part is securely located and oriented in a consistent manner for measurement and manufacturing processes.

• Datum features are used as referen...read more
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Displacement velocity and acceleration diagram when the followers moves with simple harmonic motion

Q1. What is surface
Ans. 
Surface refers to the outermost layer or boundary of an object or material.
• Surface is the area that is exposed to the surrounding environment.

• It can be smooth, rough, porous, reflective, or absorbent.

• Examples include the surface of a table, the skin's surface, or the surface of a lake.
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Q2. What is hardness
Ans. 
Hardness is a measure of a material's resistance to deformation, scratching, or abrasion.
• Hardness is a physical property of materials.

• It is typically measured using tests like the Mohs scale for minerals or the Rockwell scale for metals.

• Materials with higher hardness values are more resistant to wear and scratching.

• Hardness can be influenced by factors such as composition, microstructure, and processing.

• Examples of har...read more
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General knowledge aptitude test

About designing software like AutoCAD Creo NX cad Solidworks Mastercam G&T

Q1. About company facilities
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Q2. How do you work in company
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Q1. You work before in any company
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Q2. You have experience in any job
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Engineering core sub

Q1. Stress and strain curve
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Q2. Material knowledge
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Coding and decoding, blood relation, data interpretation

Q1. Python, jova ,c++,cloud
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