Hindalco Industries
Proud winner of ABECA 2025 - AmbitionBox Employee Choice Awards
Filter interviews by
I applied via Campus Placement
Aptitude test was basic and can be solved within an hour.
Group discussion was to check who is more interactive
Aluminium extraction involves the process of electrolysis of alumina (Al2O3) dissolved in molten cryolite.
Bauxite ore is first mined and purified to obtain alumina (Al2O3).
Alumina is dissolved in molten cryolite to lower its melting point.
The mixture is then electrolyzed using carbon electrodes to extract pure aluminium metal.
The aluminium metal is then processed further to obtain the desired form (ingots, sheets, etc....
Ore is a naturally occurring solid material from which a metal or valuable mineral can be extracted, while mineral is a naturally occurring inorganic solid substance with a specific chemical composition and structure.
Ore is a type of mineral that contains a high enough concentration of a particular element, such as iron ore containing iron.
Minerals are naturally occurring substances with a specific chemical composition...
Top trending discussions
posted on 7 Dec 2024
I applied via LinkedIn and was interviewed in Nov 2024. There were 2 interview rounds.
Series sq, train relative speed stuff like that general aptitude question
A reciprocating pump is a type of positive displacement pump that uses a back-and-forth motion to move fluids.
Operates using a piston or diaphragm to create suction and discharge.
Commonly used in applications requiring high pressure, such as water supply systems.
Examples include hydraulic pumps and some types of fuel pumps.
Can handle viscous fluids and slurries effectively.
Typically consists of a cylinder, piston, and ...
posted on 19 May 2017
I appeared for an interview in Oct 2016.
Alumina is obtained from bauxite through the Bayer process.
Bauxite is crushed and mixed with sodium hydroxide to form a slurry.
The slurry is heated and pressurized in a digester to dissolve the alumina content.
The resulting solution is cooled and filtered to remove impurities.
The purified solution is then heated to precipitate the alumina as a white powder.
The alumina powder is washed, dried, and calcined to produce pu...
The reaction for Al extraction from alumina involves the reduction of alumina using carbon or electrolysis.
Alumina (Al2O3) is first converted into aluminum chloride (AlCl3) by reacting with hydrochloric acid.
The aluminum chloride is then reduced to aluminum metal by either carbon reduction or electrolysis.
In carbon reduction, carbon (usually in the form of coke) is heated with the aluminum chloride to produce aluminum ...
There are four main types of cast iron: gray iron, white iron, ductile iron, and malleable iron.
Gray iron is the most common type and has excellent castability and good machinability.
White iron is very hard and brittle, often used for wear-resistant applications.
Ductile iron has high strength and ductility, making it suitable for a wide range of applications.
Malleable iron is heat-treated to improve its strength and du...
I applied via Recruitment Consultant and was interviewed in Nov 2019. There were 3 interview rounds.
Mining is the process of extracting valuable minerals or other geological materials from the earth's surface or underground.
Mining is done to obtain various resources such as coal, gold, diamonds, and metals like iron, copper, and aluminum.
It involves the removal of soil, rocks, and other materials to access the desired minerals.
Mining can be categorized into surface mining and underground mining, depending on the loca...
I applied via Company Website and was interviewed before Jul 2021. There was 1 interview round.
Yes, Coal India is a state-owned coal mining company with operations in remote locations.
Coal India Limited is the largest coal-producing company in the world.
It has mines in remote locations such as Jharkhand, Chhattisgarh, and Odisha.
The company also has subsidiaries that operate in other countries such as Mozambique and South Africa.
I am drawn to this organization for its commitment to innovation, growth opportunities, and alignment with my career goals.
Alignment with Values: Your organization's focus on sustainability resonates with my personal values, as I am passionate about environmental responsibility.
Career Growth: I see ample opportunities for professional development here, such as mentorship programs and training workshops that can enhance...
I applied via Campus Placement and was interviewed before Oct 2023. There was 1 interview round.
GD on the Topic - Quality of coal is deteriorating, what should the company do?
I applied via Campus Placement and was interviewed before Dec 2023. There were 2 interview rounds.
Discuss the allocation of coal blocks and its relation to the per capita energy index.
The question seeks straightforward responses to assess basic knowledge and communication skills.
Be concise and clear in your answers.
Use examples from past experiences to illustrate points.
Stay relevant to the role and responsibilities of a Deputy Manager.
Demonstrate problem-solving skills through examples.
posted on 29 May 2024
I applied via Referral and was interviewed in Nov 2023. There were 4 interview rounds.
Safety norms and company acts are regulations and guidelines put in place to ensure the safety and well-being of employees in the workplace.
Safety norms include wearing personal protective equipment (PPE) such as helmets, gloves, and safety shoes.
Company acts may include regular safety training sessions for employees to educate them on potential hazards and how to prevent accidents.
Safety norms also cover emergency pro...
I appeared for an interview before Apr 2024, where I was asked the following questions.
I applied via Campus Placement and was interviewed before Aug 2022. There were 4 interview rounds.
Prepare the core subjects som Thermo fluids and asked some of the manufacturing process
How we can reduce the use of non renewable resources
based on 1 interview experience
based on 1 review
Rating in categories
Assistant Manager
1.2k
salaries
| ₹8.5 L/yr - ₹15 L/yr |
Junior Engineer
684
salaries
| ₹3 L/yr - ₹7 L/yr |
Manager
610
salaries
| ₹13 L/yr - ₹23.3 L/yr |
Assistant Engineer
520
salaries
| ₹4 L/yr - ₹7.8 L/yr |
Deputy Manager
277
salaries
| ₹10 L/yr - ₹17 L/yr |
Rungta Mines
Hindustan Zinc
Vedanta Resources
Adani Enterprises