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Western Coalfields Junior Mining Engineer Interview Questions, Process, and Tips
Western Coalfields Junior Mining Engineer Interview Experiences
1 interview found
Anonymous
Selected
I applied via Naukri.com and was interviewed in Aug 2023. There were 2 interview rounds.
(4 Questions)
- Q1. How many types of coal are there?
- Ans.
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...
- Q2. How many types of gas are found in underground mins?
- Ans.
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
- Q3. What is mining?
- Ans.
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...
- Q4. How many ways are there to come out in underground minse?
- Ans.
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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- Coal Mining
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I applied via Referral and was interviewed before May 2021. There were 3 interview rounds.
(1 Question)
- Q1. Genaral questions about pas work experience
(1 Question)
- Q1. Questions related to work were asked and personal family details were also asked
(1 Question)
- Q1. About compensation and time of joining only
Interview Preparation Tips
Selected
I applied via Referral and was interviewed in Jan 2023. There were 3 interview rounds.
(1 Question)
- Q1. Bolt grades for different bolts
- Ans.
Different bolt grades are used for various applications based on their strength and durability.
Bolt grades are typically indicated by numbers or letters, such as Grade 2, Grade 5, Grade 8, etc.
Higher grade bolts have higher strength and are used in applications where greater load-bearing capacity is required.
Common grades include Grade 2, Grade 5, Grade 8, and stainless steel bolts.
Each grade has specific properties an...
(1 Question)
- Q1. About machine design, motors,gearbox ratio, output, earlier work done
(1 Question)
- Q1. Salary negotiations
Selected
I applied via Naukri.com and was interviewed before Apr 2022. There were 3 interview rounds.
(1 Question)
- Q1. Basics about your self
(1 Question)
- Q1. Regarding your experience and related questions
Interview Preparation Tips
(2 Questions)
- Q1. What is your strength
- Q2. What is your weakness
Basic aptitude test with time limit
(2 Questions)
- Q1. Basically questions about the trade about you are working or knowledge of job and experience , the job in the field of interest is very important
- Q2. Ask about educational qualification and any achievements
Interview Preparation Tips
Interview Questionnaire
3 Questions
- Q1. What is differential?
- Ans.
Differential is a mechanical device that allows the wheels of a vehicle to rotate at different speeds.
Differential is commonly found in vehicles with multiple wheels, such as cars and trucks.
It is located in the center of the axle and connects the drive shaft to the wheels.
The main purpose of a differential is to allow the wheels to rotate at different speeds while still receiving power from the engine.
This is importan...
- Q2. What is EGR system
- Ans.
EGR system stands for Exhaust Gas Recirculation system. It is used in internal combustion engines to reduce nitrogen oxide emissions.
EGR system recirculates a portion of exhaust gases back into the engine's intake manifold.
This reduces the combustion temperature and lowers the production of nitrogen oxides.
The recirculated exhaust gases also help in reducing engine knocking and improving fuel efficiency.
EGR systems can...
- Q3. Which types gear use in I-shift automatic gearbox
- Ans.
The I-shift automatic gearbox uses helical gears and spur gears.
I-shift automatic gearbox uses helical gears for the main transmission and spur gears for the auxiliary section
Helical gears provide smoother and quieter operation compared to spur gears
Spur gears are used for the auxiliary section as they are more efficient for high torque applications
Interview Preparation Tips
Selected
I applied via Naukri.com and was interviewed before Dec 2023. There was 1 interview round.
(2 Questions)
- Q1. All bout current job description.
- Q2. Details about structural design and its analysis.
Selected
I appeared for an interview in Mar 2023.
(2 Questions)
- Q1. Not that much to share they just ask the day to day challenge handling and process of purchasing a material...
- Q2. How many mails do you handle
- Ans.
I handle approximately 50-100 emails per day in my current role as a Senior Engineer.
I prioritize emails based on urgency and importance
I respond to emails promptly to ensure efficient communication
I organize emails into folders for easy access and reference
(1 Question)
- Q1. Same as it is before...
Interview Questionnaire
1 Question
- Q1. Lots of questions
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Western Coalfields Junior Mining Engineer Interview Process
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Western Coalfields Junior Mining Engineer Reviews and Ratings
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Rating in categories
|
Mining Engineer
15
salaries
|  ₹1.6 L/yr - ₹8 L/yr |
|
Trainee
12
salaries
| ₹0.9 L/yr - ₹2.4 L/yr |
|
Assistant Manager
8
salaries
| ₹8.5 L/yr - ₹20 L/yr |
|
Graduate Trainee
7
salaries
| ₹1.1 L/yr - ₹6.2 L/yr |
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Overman
7
salaries
| ₹5.4 L/yr - ₹12 L/yr |
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