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Distortion energy theory is a failure criterion used in materials science to predict the onset of yielding or fracture.
Also known as the von Mises yield criterion or the maximum distortion energy theory.
It states that yielding occurs when the distortion energy per unit volume exceeds a critical value.
It is based on the assumption that yielding is controlled by the accumulation of plastic strain energy.
The theory is com...
Case hardening is a heat treatment process used to increase the surface hardness of a metal while maintaining its toughness.
Case hardening involves adding carbon or nitrogen to the surface layer of a metal through diffusion.
The process is commonly used in the manufacturing of gears, bearings, and other components that require a hard outer layer for wear resistance.
Case hardening techniques include carburizing, nitridin...
There are several types of springs used in vehicles, including coil springs, leaf springs, torsion bars, and air springs.
Coil springs are the most common type of spring used in vehicles, providing support and absorbing shocks.
Leaf springs are often used in trucks and SUVs, providing a smooth ride and load-carrying capacity.
Torsion bars are used in some vehicles to provide suspension and support.
Air springs, also known ...
Sales is the process of selling products or services, while marketing is the process of creating demand for those products or services.
Sales involves direct interaction with customers to sell products or services, while marketing involves creating brand awareness and promoting products or services through various channels.
Sales is focused on short-term goals, such as meeting sales targets, while marketing is focused on...
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posted on 4 Jan 2025
I applied via Campus Placement
The test conducted by SHL included sections on technical skills, psychometrics, and data interpretation (interactive G3+).
Most of the topics provided were related to electric vehicles and luxury cars.
I prefer discussing the injection molding process.
Injection molding is a manufacturing process used to produce parts by injecting material into a mold.
Key aspects include material selection, mold design, injection pressure, cooling time, and part ejection.
Examples of products made using injection molding include plastic bottles, automotive parts, and medical devices.
posted on 13 Dec 2024
I applied via campus placement at National Institute of Technology (NIT), Tiruchirappalli and was interviewed in Nov 2024. There were 3 interview rounds.
Basic question on aptitude
Topic on emotional intelligence in workplace
posted on 16 Oct 2024
A stress-strain diagram shows the relationship between stress and strain in a material.
It typically consists of a linear elastic region, a yield point, and a plastic deformation region.
The slope of the linear region is the material's Young's Modulus.
The yield point is where the material begins to deform plastically.
The ultimate tensile strength is the maximum stress the material can withstand.
The breaking point is wher...
SN curve is a graphical representation of fatigue data showing the relationship between stress and number of cycles to failure.
SN curve helps in understanding the fatigue behavior of materials under cyclic loading.
It shows the stress level at which a material will fail after a certain number of cycles.
The curve typically consists of a high cycle fatigue region and a low cycle fatigue region.
Example: Steel SN curve show...
posted on 20 Feb 2024
I applied via campus placement at PSG Institute of Management, Coimbatore and was interviewed in Aug 2023. There were 2 interview rounds.
CNC coding is used to program machines to create precise components.
Use G-code and M-code to control the machine movements and functions
Specify tool paths, speeds, feeds, and other parameters
Example: G01 X10 Y5 Z2 F100
Valve port diagram for a 4-stroke engine shows the intake and exhaust valves in relation to the piston movement.
Intake valve opens to allow air/fuel mixture into the cylinder during the intake stroke
Exhaust valve opens to release exhaust gases during the exhaust stroke
Valve overlap occurs when both intake and exhaust valves are partially open at the same time
Diagram typically shows the position of valves in relation to...
I applied via Campus Placement and was interviewed in Sep 2022. There were 3 interview rounds.
Domain based questions were asked.
posted on 28 Sep 2022
I applied via campus placement at Vellore Institute of Technology (VIT) and was interviewed in Aug 2022. There were 4 interview rounds.
One hour test on basic aptitute and technical knowledge
posted on 28 Mar 2023
I applied via campus placement at Institute of Technology, Banaras Hindu University and was interviewed in Sep 2022. There were 3 interview rounds.
General aptitude with few analytical questions
posted on 28 Aug 2022
I applied via Campus Placement and was interviewed before Aug 2021. There were 2 interview rounds.
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