Ingenious e-Brain Solutions Senior Research Associate Interview Questions and Answers

Q1. Introduce Yourself?
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Q1. Types of research, qualitative and quantitative?
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Logical Reasoning & Aptitude test, Grammar test.

Q1. You are given some EAN number, bases on that you have to find details of the product and answer the questions.
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Q2. 1. Introduction 2. Questions about Prior work experience.
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Q1. What are the differences in the various heat treatment processes?
Ans. 
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...read more
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Q2. What was the diameter of the DI pipes that were continuously casted while on your stint in NML?
Ans. 
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
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Q3. What is the cryogenic process of heat treatment??
Ans. 
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...read more
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Q4. What is the temperature range for annealing, quenching, normalizing, austempering and multiple other heat treatments in the metallurgical arena??
Ans. 
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
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Q5. Describe the relation between strength and hardness??
Ans. 
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...read more
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Q6. Draw the continuous cooling curves and explain the schema...
Ans. 
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...read more
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Q7. Draw the Fe-C diagram with their bifurcations....
Ans. 
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...read more
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Normal aptitude test

Q1. Tell me about yourself, and few guesstimate questions only
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Q1. Cosumption of potatoes respective state
Ans. 
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.
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Q2. Governer of Reserve Bank of India
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Q1. Research related questions , graphical representation of data and case study related question
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Q2. They had conducted a test so asked how did you arrive at the solution
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Q1. Illustrate the Fe-C diagram with the boundary lines as in peritectic or eutectic lines?
Ans. 
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...read more
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Q2. Figure out the relationship between hardness and strength and explain why it is so?
Ans. 
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 ...read more
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Q3. Differentiate between the various forms of heat treatment?
Ans. 
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 ...read more
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