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I applied via Campus Placement and was interviewed in Dec 2023. There were 2 interview rounds.
Mathematics, problem solving skills
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posted on 15 Jan 2025
I applied via Campus Placement
posted on 15 Jan 2025
I applied via Campus Placement
I applied via LinkedIn and was interviewed in Jun 2024. There was 1 interview round.
I applied via Campus Placement and was interviewed before Sep 2022. There were 2 interview rounds.
posted on 26 Jul 2022
Potato consumption varies across states in India.
Potatoes are a staple food in many Indian households.
States like West Bengal, Uttar Pradesh, and Bihar consume the most potatoes.
In South India, rice is the primary staple food, so potato consumption is relatively lower.
Potatoes are also used in various dishes like aloo gobi, aloo paratha, and samosas.
Potato chips and French fries are popular snacks across the country.
I applied via LinkedIn and was interviewed before Feb 2022. There were 3 interview rounds.
Logical Reasoning & Aptitude test, Grammar test.
posted on 5 Jun 2022
I applied via Walk-in and was interviewed before Jun 2021. There was 1 interview round.
Heat treatment processes differ in temperature, time, and cooling rate to achieve desired material properties.
Annealing: heating and slowly cooling to reduce hardness and increase ductility
Quenching: rapid cooling to increase hardness and strength
Tempering: heating and cooling to increase toughness and reduce brittleness
Normalizing: heating and cooling to refine grain structure and improve machinability
Hardening: heati...
The diameter of the DI pipes continuously casted at NML was 100mm.
DI pipes were continuously casted at NML
The diameter of the pipes was 100mm
Cryogenic process of heat treatment involves cooling materials to extremely low temperatures to improve their properties.
Materials are cooled to temperatures below -150°C using liquid nitrogen or helium.
This process improves the wear resistance, toughness, and dimensional stability of materials.
Common applications include treating tool steels, aerospace alloys, and superconducting materials.
The process can also be used...
The temperature range for various heat treatments in metallurgy varies depending on the specific process.
Annealing temperature range: 300-1200°C
Quenching temperature range: Room temperature to 200°C
Normalizing temperature range: 800-950°C
Austempering temperature range: 250-450°C
Other heat treatments have their own specific temperature ranges
Temperature ranges can also vary depending on the type of metal being treated
Strength and hardness are related but not the same. Strength is the ability to withstand force while hardness is resistance to deformation.
Strength refers to the ability of a material to withstand an applied force without breaking or deforming.
Hardness refers to the resistance of a material to deformation, scratching, or abrasion.
A material can be strong but not hard, such as rubber, or hard but not strong, such as gla...
Continuous cooling curves show the cooling behavior of a material during solidification.
Continuous cooling curves are used to determine the cooling rate required for a material to achieve a desired microstructure.
They are plotted by cooling a sample at a constant rate and measuring its temperature as a function of time.
The curves can be used to predict the formation of different phases and microstructures in the materi...
Fe-C diagram shows the phases of iron-carbon alloys at different temperatures and carbon concentrations.
The diagram is also known as the iron-carbon phase diagram.
It is used to understand the behavior of steel and cast iron.
The diagram shows the different phases of iron and carbon at different temperatures and carbon concentrations.
The diagram has three main regions: austenite, ferrite, and cementite.
The eutectoid poin...
posted on 5 Jun 2022
I applied via Walk-in and was interviewed before Jun 2021. There were 2 interview rounds.
Fe-C diagram with peritectic or eutectic lines
Fe-C diagram shows the phases of iron-carbon alloys at different temperatures and carbon concentrations
Peritectic line separates the liquid and solid phases during cooling
Eutectic line separates the two-phase region from the three-phase region
Peritectic reaction occurs when a solid phase reacts with a liquid phase to form a new solid phase
Eutectic reaction occurs when a liq...
Hardness and strength are related but not the same. Hardness is a measure of resistance to indentation while strength is a measure of resistance to deformation.
Hardness is a measure of a material's ability to resist scratching, cutting, or penetration.
Strength is a measure of a material's ability to resist deformation or fracture under an applied load.
Hardness and strength are related because materials that are harder ...
Heat treatment includes annealing, tempering, quenching, and normalizing.
Annealing involves heating the material to a specific temperature and then cooling it slowly.
Tempering involves heating the material to a specific temperature and then cooling it quickly.
Quenching involves heating the material to a specific temperature and then cooling it rapidly.
Normalizing involves heating the material to a specific temperature ...
posted on 28 May 2022
I applied via Walk-in and was interviewed before May 2021. There was 1 interview round.
Heat treatments include annealing, tempering, quenching, and case hardening. Each process has unique properties and uses.
Annealing involves heating and slowly cooling to soften metal and improve ductility.
Tempering involves heating and cooling to increase toughness and reduce brittleness.
Quenching involves rapid cooling to increase hardness and strength.
Case hardening involves adding a hard outer layer to a softer meta...
The diameter of DI pipes used during the continuous casting process varies depending on the specific application.
The diameter of DI pipes used in continuous casting can range from 100mm to 1000mm or more.
The diameter is determined by factors such as the size of the casting machine, the type of metal being cast, and the desired output.
For example, a smaller diameter pipe may be used for casting smaller products like rod...
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