Tesla Mechanical Engg. Design Interview Questions and Answers

Q1. Inertia concepts, heat transfer in a PCBA, FBD
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Basic mechanical fundamentals, beams, material science, heat transfer, hydraulics

Q1. Not done yet but expect to present a project in front of a board
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Q1. Mechanics of materials
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Mechanics of materials involves the study of behavior of solid objects subjected to external forces.
• Study of stress and strain in materials

• Analysis of material properties such as elasticity, plasticity, and strength

• Understanding of how materials deform and fail under different loading conditions

• Application of principles to design and analyze structures and components
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Q1. Basic Stress-strain
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Q1. Be sure to review your mechanical engineering fundamentals and strength of materials, mechanics of materials with heat transfer and cantilever beam questions
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Q2. What is stress/ strain? what is true position GDT and how do you calculate tolerance stack up
Ans. 
Stress is the force applied to a material, while strain is the resulting deformation. True position in GDT specifies the allowable deviation from the exact location of a feature. Tolerance stack up is the accumulation of variations in dimensions within an assembly.
• Stress is the internal resistance of a material to deformation under an applied force.

• Strain is the measure of deformation or displacement of material partic...read more
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Q3. What is GDT? name three common GDT call outs
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GDT stands for Geometric Dimensioning and Tolerancing. Three common GDT call outs are concentricity, perpendicularity, and flatness.
• Concentricity: Specifies that two or more features share a common center point.

• Perpendicularity: Specifies that a surface or axis is perpendicular to a datum plane.

• Flatness: Specifies that a surface must lie within a specified flatness tolerance zone.
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