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I applied via Recruitment Consulltant and was interviewed in Aug 2021. There was 1 interview round.
I applied via Approached by Company and was interviewed in Aug 2021. There was 1 interview round.
I was interviewed before Apr 2022.
Math, reasoning ,Quant, technical, behaviour
Situational Group discussion
I applied via Walk-in and was interviewed before Jun 2021. There were 4 interview rounds.
What capecity boiler
There are various types of boilers used in boiler combustion, including fire-tube boilers, water-tube boilers, and electric boilers.
Fire-tube boilers: These boilers have hot gases flowing through tubes surrounded by water. They are commonly used in small-scale applications.
Water-tube boilers: These boilers have water flowing through tubes surrounded by hot gases. They are commonly used in large-scale industrial applica...
Steam pressure in a boiler is used to generate power and heat.
Steam pressure is used to drive turbines and generate electricity.
It is also used to provide heat for various industrial processes.
Higher steam pressure results in increased energy output.
Steam pressure is controlled and regulated to ensure safe and efficient operation of the boiler.
Examples of boilers that utilize steam pressure include power plants, refine
Hindustan Zinc interview questions for popular designations
I applied via Referral
Get interview-ready with Top Hindustan Zinc Interview Questions
I applied via Company Website and was interviewed before Dec 2021. There were 3 interview rounds.
General knowledge, physics chemistry biology, psychology
I applied via Company Website and was interviewed in Jan 2021. There was 1 interview round.
Underground working in mining involves the use of blasting systems, support systems, and ventilation.
Underground working in mining is done through the use of tunnels and shafts.
Blasting systems are used to break up the rock and extract the desired minerals.
Support systems such as rock bolts, shotcrete, and steel arches are used to ensure the stability of the underground workings.
Ventilation systems are crucial for prov...
Gases like carbon monoxide and nitrogen oxides are present from blasting and are handled through ventilation and monitoring.
Gases are produced during blasting due to the combustion of explosives.
Carbon monoxide and nitrogen oxides are the most common gases produced.
These gases can be harmful to humans and the environment.
Ventilation systems are used to remove the gases from the mine.
Monitoring systems are used to detec...
I applied via Campus Placement and was interviewed before Oct 2019. There were 4 interview rounds.
The power pack position for longwall mining face should be strategically located for efficient operation.
The power pack should be located near the longwall face to minimize the length of hydraulic hoses and electrical cables.
It should be positioned in a safe and accessible location for maintenance and repair.
The power pack should be designed to withstand the harsh mining environment, including dust and moisture.
The lay...
Bord and pillar mining percentage of extraction refers to the amount of coal or ore that can be extracted from a given area using this method.
The percentage of extraction in bord and pillar mining can vary depending on factors such as the size of the pillars left behind, the thickness of the seam being mined, and the equipment used.
In general, the percentage of extraction for coal using bord and pillar mining ranges fr...
Explaining blast output calculation and powder factor calculation.
Blast output calculation involves determining the amount of material moved during a blast.
Powder factor calculation involves determining the amount of explosive needed to move a certain amount of material.
Blast output calculation can be done using the formula: Volume of material moved = hole volume x burden x spacing x number of holes.
Powder factor calcu...
I applied via Campus Placement and was interviewed before Mar 2020. There was 1 interview round.
Amazon's business strategy is to be the most customer-centric company in the world.
Customer obsession
Continuous innovation
Operational excellence
Long-term thinking
Expansion into new markets and industries
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...
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The duration of Hindustan Zinc interview process can vary, but typically it takes about less than 2 weeks to complete.
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