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Mayiko Infrastructure Interview Questions and Answers
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Assistant Manager Interview Questions & Answers
Vedanta Resources
Aditya Sharma
posted on 19 May 2017
I appeared for an interview in Oct 2016.
Interview Questionnaire
6 Questions
- Q1. Introduce yourself.
- Ans.
Experienced retail professional with strong leadership skills and a passion for customer service.
Over 5 years of retail management experience
Proven track record of increasing sales and improving customer satisfaction
Strong leadership and team-building skills
Passionate about providing excellent customer service
Bachelor's degree in Business Administration
- Q2. How is alumina obtained from bauxite?
- Ans.
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...
- Q3. Reaction for Al extraction from alumina.
- Ans.
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 ...
- Q4. Stainless steel production.
- Q5. Types of cast iron.
- Ans.
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
- Q6. Location constraints and little info about family.
Interview Preparation Tips
Experience: Basic Aptitude and Verbal Test - Easy Questions
Tips: Improve Speed and Accuracy
Duration: 30 minutes
Total Questions: 35
Round: Group Discussion
Experience: Two sects formed; one supporting the argument and other opposing it. Wage gap, Indian Mine Law, social pressure, patriarchal mentality and crime against women were discussed.
Tips: Communication skills are more important than content. Show confidence and speak fluently. Factual and grammatical errors can be ignored.
Duration: 15 minutes
Round: Technical + HR Interview
Experience: They were chilled out and were giving time to speak. Little hints were also being given.
Tips: Be thorough with basics and don't give nonsensical answers if you don't know.
Skills: Technical Knowledge(ML
College Name: NIT Raipur
Anonymous
I applied via Referral and was interviewed before Dec 2020. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. OOPS concept
- Q2. Database concepts and modal concepts
Interview Preparation Tips
I appeared for an interview before Jun 2021.
Physics,chem,math,quantitative apti.. etc
(3 Questions)
- Q1. Can you work with team
- Q2. What is elctrolysis,what do you know how we can prepare aluminium
- Ans.
Electrolysis is a process of breaking down a compound using electricity. Aluminium can be prepared by electrolysis of alumina.
Electrolysis involves passing an electric current through a compound to break it down into its constituent elements.
Aluminium is prepared by electrolysis of alumina (Al2O3) dissolved in molten cryolite (Na3AlF6).
The process involves the use of carbon electrodes, which react with the oxygen relea...
- Q3. Can you work at a temp 50 degree
Interview Preparation Tips
I applied via Recruitment Consultant and was interviewed in Nov 2019. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. What is mining ? which purpose to excavate soil
- Ans.
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...
Interview Preparation Tips
I applied via Approached by Company and was interviewed before May 2021. There were 2 interview rounds.
(1 Question)
- Q1. DM water parameter . Cold startup Coal analysis.
Interview Preparation Tips
- Boiler Operations
- Turbine operation
- Electrical protection
Very basic aptitude test, if you know basics about your field you'll pass through this round.
A moderate level GD, most of the elimination happen in this round, you only need to get one chance and tell your points
(2 Questions)
- Q1. Tell me something about yourself
- Q2. Basic technical questions related to your field.
Interview Preparation Tips
Selected
I applied via Campus Placement and was interviewed before Aug 2023. There were 3 interview rounds.
Aptitude test was moderate ,
Group discussion happened online topic was ban on chinese apps
(3 Questions)
- Q1. Whats the use of nonel , why it is use ?
- Ans.
Nonel is a type of non-electric initiation system used in blasting operations to detonate explosives.
Nonel is used in mining, construction, and demolition industries.
It is a safe and reliable method of initiating explosives without the need for electricity.
Nonel consists of a shock tube filled with a small amount of explosive material that is initiated by a blasting cap.
It allows for precise timing and sequencing of bl...
- Q2. What does safety means to you ?
- Ans.
Safety means ensuring the well-being and protection of individuals from harm or danger.
Safety involves implementing measures to prevent accidents and injuries.
It includes following protocols and guidelines to minimize risks.
Safety also encompasses creating a culture of awareness and accountability.
Examples: wearing personal protective equipment, conducting regular safety inspections, providing proper training.
- Q3. Why you opted mining engineering?
- Ans.
Passion for solving complex problems and interest in natural resources led me to choose mining engineering.
Fascination with geology and earth sciences
Desire to work in a challenging and dynamic industry
Opportunity to contribute to sustainable resource extraction
Interest in utilizing advanced technology in mining operations
Interview Preparation Tips
I applied via Job Portal and was interviewed before Nov 2021. There were 3 interview rounds.
Direct through campus placement and group discussion.
(2 Questions)
- Q1. All the studies related concepts were aksed
- Q2. About COST ACCOUNTING STANDARDS
Interview Preparation Tips
Selected
I applied via Campus Placement and was interviewed before Jul 2023. There were 3 interview rounds.
1st round of interview was Aptitude test for 1 hr and topics were mostly logical analysis and quants
Topic was development of technology in India how it is going to affect
(5 Questions)
- Q1. Define what is hooks law
- Ans.
Hook's law states that the force needed to extend or compress a spring by a certain distance is proportional to that distance.
Force needed to extend or compress a spring is directly proportional to the displacement
The formula for Hook's law is F = kx, where F is the force, k is the spring constant, and x is the displacement
It is used to calculate the behavior of springs, elastic materials, and other systems under stres
- Q2. What is pearlite material
- Ans.
Pearlite is a two-phased lamellar structure composed of alternating layers of ferrite and cementite in carbon steel.
Pearlite forms when austenite transforms during the cooling process of steel
It is a common microstructure in carbon steels
Pearlite provides strength and hardness to the steel
It is often used in engineering applications for its desirable properties
- Q3. What is the composition of steel
- Ans.
Steel is primarily composed of iron and carbon, with small amounts of other elements like manganese, phosphorus, sulfur, and silicon.
Steel is mainly made up of iron and carbon
Carbon content typically ranges from 0.2% to 2.1%
Other elements like manganese, phosphorus, sulfur, and silicon are also present in small amounts
Alloying elements like nickel, chromium, and molybdenum can be added to enhance specific properties
- Q4. Tell me about yourself
- Q5. Which subject do you like most
Selected
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?
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