ArcelorMittal Interview Questions and Answers for Freshers

Q1. What is the least count of vernier calliper
Ans. 
The least count of a vernier caliper is the smallest measurement that can be read or measured using the instrument.
• The least count of a vernier caliper is typically 0.02 mm or 0.001 inches.

• It is determined by the number of divisions on the main scale and the vernier scale.

• For example, if the main scale has 20 divisions and the vernier scale has 10 divisions, the least count would be 0.02 mm.
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Q2. Types of dail gauge, micrometer least count
Ans. 
Daily gauge and micrometer have different least counts for measuring precision.
• Daily gauge typically has a least count of 0.01 mm for measuring small dimensions accurately

• Micrometer usually has a least count of 0.001 mm for more precise measurements

• Least count refers to the smallest measurement that can be read on the scale of the instrument
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Q3. What is heat treatment process
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Heat treatment is a process used to alter the physical and sometimes chemical properties of a material through heating and cooling.
• Heat treatment involves heating a material to a specific temperature, holding it at that temperature for a certain amount of time, and then cooling it at a controlled rate.

• The process can be used to increase the hardness, strength, toughness, and ductility of a material.

• Common heat treatmen...read more
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Q4. What is tolerance ? Why are uses of tolerance
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Tolerance is the acceptable range of variation in a measurement or quality, used to ensure products meet specifications.
• Tolerance is the allowable deviation from a standard or specification in dimensions, performance, or other characteristics.

• It is used to ensure that products meet quality standards and function properly.

• Tolerance helps prevent defects and ensures consistency in manufacturing processes.

• Examples include...read more
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Q5. What is quality control ?
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Quality control is a process used to ensure that products or services meet specified requirements and standards.
• Quality control involves monitoring and inspecting products or services to identify defects or deviations from standards.

• It includes implementing corrective actions to address any issues found during the inspection process.

• Quality control aims to improve customer satisfaction by delivering products or service...read more
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Q6. What is 7 quality control ?
Ans. 
7 quality control is a set of principles and techniques used to ensure products meet quality standards.
• 7 quality control involves inspecting, testing, and sampling products to ensure they meet specifications

• It also includes identifying and addressing defects or deviations from quality standards

• Quality control helps to prevent defects, improve processes, and increase customer satisfaction
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Modernization of Small Manufacturing Businesses Boon or Bane

Q1. What are the three laws of thermodynamics ?
Ans. 
The three laws of thermodynamics are fundamental principles in the study of energy and heat transfer.
• First Law: Energy cannot be created or destroyed, only transferred or converted. For example, when a cup of hot coffee cools down, the energy is transferred to the surrounding air.

• Second Law: Heat naturally flows from hot to cold objects, and entropy (disorder) tends to increase over time. For example, an ice cube melti...read more
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Q2. What is entropy
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Entropy is a measure of disorder or randomness in a system.
• Entropy increases as the system becomes more disordered.

• It is a thermodynamic quantity that describes the amount of energy in a physical system that is not available to do work.

• Entropy can also be thought of as a measure of the number of possible arrangements of a system.

• For example, a messy room has higher entropy than a clean room because there are more possi...read more
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Q1. Job experience.
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