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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...
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 ...
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posted on 19 Feb 2021
posted on 9 Jan 2022
I applied via Campus Placement and was interviewed before Jan 2021. There were 3 interview rounds.
Car efficiency decreases with increasing altitude due to lower air density.
As altitude increases, air density decreases, resulting in less oxygen available for combustion.
This leads to a decrease in engine power and efficiency.
For example, a car that gets 30 mpg at sea level may only get 20 mpg at high altitudes.
Turbocharged engines can partially compensate for the decrease in air density by compressing the air before ...
Otto cycle is a four-stroke combustion cycle used in spark-ignition engines. Dual cycle is a theoretical cycle that combines constant volume and constant pressure processes.
Otto cycle: intake, compression, power, exhaust strokes
Used in gasoline engines
Dual cycle: combines constant volume and constant pressure processes
Used in gas turbines and diesel engines
posted on 19 Dec 2015
posted on 26 Jan 2016
posted on 21 Mar 2015
posted on 30 Oct 2015
Welding aluminium is difficult due to its high thermal conductivity, low melting point, and susceptibility to distortion and cracking.
Aluminium has a high thermal conductivity, which means it dissipates heat quickly, making it difficult to maintain a consistent temperature during welding.
Aluminium has a low melting point, which means it can easily become overheated and distorted during welding.
Aluminium is susceptible ...
Properties of cast iron, mild steel, and alloy steel.
Cast iron is brittle and has high compressive strength.
Mild steel is ductile and has low carbon content.
Alloy steel has high strength and toughness due to the addition of other elements.
Cast iron is used in engine blocks and pipes.
Mild steel is used in construction and automobile manufacturing.
Alloy steel is used in aerospace and defense industries.
Alloying elements are added to steel to improve its properties such as strength, corrosion resistance, and toughness.
Alloying elements can improve the strength of steel by forming stronger bonds between the atoms.
Chromium is added to steel to improve its corrosion resistance.
Manganese is added to steel to improve its toughness.
Nickel is added to steel to improve its ductility.
Vanadium is added to steel to improve its w...
Different types of steel and cast iron have unique properties and are used for specific applications.
Steel is used for construction, automotive, and aerospace industries.
Cast iron is used for engine blocks, pipes, and cookware.
Stainless steel is corrosion-resistant and used for medical equipment and cutlery.
High carbon steel is used for cutting tools and knives.
Alloy steel is used for high-stress applications like brid
Welding can be classified into different types based on the welding process and the type of joint being welded.
Welding processes: arc welding, gas welding, resistance welding, laser welding, etc.
Types of joints: butt joint, lap joint, T-joint, corner joint, edge joint, etc.
Other classifications: fusion welding, solid-state welding, pressure welding, etc.
Examples: MIG welding (gas metal arc welding), TIG welding (gas tu...
During my internship at Indira Gandhi Centre for Atomic Research and IIT Madras, I gained valuable experience in research and development.
I worked on a project related to nuclear fuel fabrication at Indira Gandhi Centre for Atomic Research
At IIT Madras, I was part of a team that developed a prototype for a solar-powered water purifier
I learned how to conduct experiments, analyze data, and present my findings
I also gain...
posted on 27 Jan 2017
I appeared for an interview before Jan 2016.
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