Vedanta Aluminium Interview Questions, Process, and Tips

Basic Maths, Science & Gk

Indian economy - 10 min

Q1. Difference between vs Refrigeration
Ans. 
Air conditioning is the process of altering the properties of air to make it more comfortable, while refrigeration is the process of removing heat from a space or substance.
• Air conditioning is used to cool and dehumidify indoor air for comfort.

• Refrigeration is used to preserve food, medicine, and other perishable items.

• Air conditioning uses a refrigerant to absorb heat from indoor air and release it outside.

• Refrigerati...read more
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Q2. Thermodynamics cycle.
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Q3. Material properties and usage in the real world
Ans. 
Material properties and usage are crucial in determining the performance and durability of products in the real world.
• Material properties such as strength, durability, and conductivity are important considerations in product design and development.

• Different materials have different properties and are suited for different applications. For example, steel is strong and durable, making it ideal for construction and manufa...read more
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Q4. Heat conduction vs Raidation
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Heat conduction is the transfer of heat through a material, while radiation is the transfer of heat through electromagnetic waves.
• Heat conduction occurs in solids and liquids, while radiation can occur in vacuum or through transparent media.

• Heat conduction is slower than radiation.

• Examples of heat conduction include touching a hot stove or holding a warm cup of coffee, while examples of radiation include feeling the wa...read more
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Q1. Are you willing to relocate
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Q2. What is ur Expected CTC
Ans. 
My expected CTC is in line with industry standards and commensurate with my experience and skills.
• My expected CTC is based on my current salary, industry standards, and the responsibilities of the role.

• I have researched the market and have a realistic expectation for my salary.

• I am open to negotiation based on the overall compensation package.

• I am looking for a fair and competitive salary that reflects my experience an...read more
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Q1. What is a transformer?
Ans. 
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Transformers are used to increase or decrease voltage levels in electrical circuits.

• They consist of two coils of wire, known as the primary and secondary coils, wrapped around a core made of iron or other magnetic materials.

• Step-up transformers increase voltage levels, while step-down tr...read more
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Q2. What is Tan Delta testing?
Ans. 
Tan Delta testing is a diagnostic test used to measure the insulation quality of electrical equipment.
• Tan Delta testing measures the power factor of insulation materials to detect any defects or deterioration.

• It helps in identifying potential issues before they lead to equipment failure or breakdown.

• The test involves applying a voltage to the insulation and measuring the current flowing through it.

• Results are compared ...read more
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Q3. What is CT and how does it work?
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Q4. Do you have experience working in a switch yard?
Ans. 
Yes, I have experience working in a switch yard.
• I have worked in a switch yard for 3 years, performing maintenance and repairs on various electrical equipment.

• I am familiar with the safety protocols and procedures required in a switch yard environment.

• I have experience troubleshooting and resolving issues with switch yard equipment, such as transformers and circuit breakers.
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Q5. What is a merger and how does it work?
Ans. 
A merger is when two companies combine to form a new entity, typically to increase market share or efficiency.
• A merger involves two companies agreeing to join forces and operate as a single entity.

• The goal of a merger is often to increase market share, expand into new markets, or achieve cost savings through economies of scale.

• There are different types of mergers, such as horizontal mergers (between competitors in the ...read more
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Q6. Do you have experience with testing transformers?
Ans. 
Yes, I have experience testing transformers in various settings.
• I have experience testing transformers in industrial settings to ensure proper functioning.

• I am familiar with using multimeters and other testing equipment to check for voltage, current, and resistance.

• I have tested transformers for efficiency and performance, identifying any issues and making necessary repairs.

• I have also conducted routine maintenance che...read more
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Q7. What is the function of an isolator in electrical work?
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An isolator is a device used to disconnect a circuit from the power supply, ensuring the safety of personnel working on the circuit.
• An isolator is used to physically disconnect a circuit from the power supply, allowing maintenance work to be carried out safely.

• It is often used in conjunction with a lockout/tagout system to prevent accidental re-energization of the circuit.

• Isolators are commonly found in electrical pane...read more
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Q1. Can you provide details about your past company?
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Q2. What are your qualifications?
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Q1. Transformer related
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Q2. GIS Erection
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Q3. Transformer oil sampling analysis and tap checking
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Q4. Generator rotor test
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