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I applied via Naukri.com and was interviewed in Aug 2023. There were 2 interview rounds.
There are four main types of coal: anthracite, bituminous, subbituminous, and lignite.
Anthracite is the highest rank of coal and is known for its high carbon content and low moisture and volatile matter.
Bituminous coal is the most commonly used type and is known for its relatively high heat content.
Subbituminous coal has a lower carbon content than bituminous coal and is commonly used for electricity generation.
Lignite...
There are several types of gases found in underground mines, including methane, carbon monoxide, hydrogen sulfide, and nitrogen.
Methane is the most common gas found in underground mines and is highly flammable.
Carbon monoxide is a deadly gas that can be produced during mining operations.
Hydrogen sulfide is another toxic gas that can be present in underground mines.
Nitrogen is often used in mining operations to displace
Mining is the process of extracting valuable minerals or other geological materials from the earth.
Mining involves drilling, blasting, and extracting minerals from the earth's surface or underground.
It is essential for the production of various resources like coal, gold, copper, and diamonds.
Mining can have environmental impacts such as habitat destruction and water pollution.
Technological advancements have made mining...
There are typically three ways to come out in underground mines: shaft, adit, and decline.
Shaft: Vertical tunnel used for hoisting ore and personnel.
Adit: Horizontal tunnel used for access to the mine.
Decline: Inclined tunnel used for moving equipment and ore.
Examples: The Lucky Friday Mine has a shaft entrance, the Goldstrike Mine has an adit entrance, and the Grasberg Mine has a decline entrance.
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I was interviewed before Jan 2021.
Diploma
I applied via Approached by Company and was interviewed before May 2021. There were 3 interview rounds.
I was interviewed in Feb 2023.
The technical process and data of a mill involves the operation and maintenance of machinery for grinding or crushing materials.
Understanding the different components of a mill such as the grinding mechanism, motor, and control system
Knowledge of the milling process including feeding, grinding, and discharging
Familiarity with the types of mills used in various industries like ball mills, hammer mills, and roller mills
A...
I applied via Walk-in and was interviewed in Jul 2022. There were 3 interview rounds.
I applied via Walk-in and was interviewed in Nov 2024. There was 1 interview round.
6 members are there one topic provided how to take action following topics.
1) what is relation between mechanical and electrical systems.
2) work from home pros and cons.
3) Covid 19 impacts on steel sector.
4) For one month charge of mechanical maintenance GM how to handle it.
Social responsibility and culture related topic
The door of a cokr oven is typically made from heat-resistant materials such as refractory bricks or ceramic fiber.
Refractory bricks
Ceramic fiber
The mechanism for quenching car cage tilting is typically achieved through the use of hydraulic systems.
Hydraulic systems are commonly used in industrial applications to control the movement of heavy machinery.
The hydraulic system applies pressure to a piston, which in turn controls the tilting of the car cage.
The quenching process involves rapidly cooling a material to achieve specific properties, often used in heat t...
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Mining Engineer
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Coal India
Singareni Collieries Company
NLC India Limited
Hindustan Zinc