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Coal India Interview Questions, Process, and Tips

Updated 2 Mar 2025

Top Coal India Interview Questions and Answers

View all 54 questions

Coal India Interview Experiences

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48 interviews found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Dec 2023. There were 2 interview rounds.

Round 1 - Group Discussion 

Discuss the allocation of coal blocks and its relation to the per capita energy index.

Round 2 - Technical 

(1 Question)

  • Q1. Simple questions

Deputy Manager Interview Questions asked at other Companies

Q1. 1.WHAT IS SPECIAL OF UR HOME TOWN 2.Who is Main compitetor with us and which products...3.what is main business in your area and its functions...4 Previous comoany achevements 5.Your strengts and weakness.
View answer (67)
Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Oct 2023. There was 1 interview round.

Round 1 - Group Discussion 

GD on the Topic - Quality of coal is deteriorating, what should the company do?

Assistant Manager Interview Questions asked at other Companies

Q1. You are Handling cash operations then how you manage operations with sales ?
View answer (87)

I applied via Walk-in and was interviewed in Feb 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(13 Questions)

  • Q1. Suitable banch height for 2cu.m shovel is
  • Ans. 

    The suitable bench height for a 2cu.m shovel depends on various factors such as the type of material being mined and the equipment used.

    • The bench height should be determined based on the reach and capacity of the shovel.

    • It should allow for efficient loading and dumping of material.

    • The bench height should also consider the stability and safety of the mining operation.

    • Factors like the type of material, equipment limitati...

  • Answered by AI
  • Q2. The max width of the gallery in Indian coal mines is
  • Ans. 

    The maximum width of the gallery in Indian coal mines varies depending on the specific mine and its regulations.

    • The maximum width of the gallery is determined by safety regulations and guidelines set by the Indian government.

    • Different coal mines may have different maximum width requirements based on factors such as the type of coal being mined, the depth of the mine, and the mining method used.

    • For example, in undergrou...

  • Answered by AI
  • Q3. The max length of the trailing cable is
  • Ans. 

    The maximum length of the trailing cable depends on various factors such as power requirements, voltage drop, and safety regulations.

    • The length of the trailing cable is determined by the distance between the power source and the equipment it needs to supply.

    • Power requirements of the equipment play a role in determining the maximum length of the cable.

    • Voltage drop, which can affect the efficiency of power transmission, ...

  • Answered by AI
  • Q4. Detonating fuse consist core of
  • Ans. 

    Detonating fuse consists of a core

    • The core of a detonating fuse is the central part that initiates the explosion

    • The core is typically made of a highly reactive material, such as a mixture of powdered metals or chemicals

    • The core is surrounded by a protective casing to prevent accidental ignition

    • Examples of core materials include lead azide, mercury fulminate, or PETN

  • Answered by AI
  • Q5. The VOD of detonating fuse is
  • Ans. 

    The VOD of detonating fuse is the velocity at which the detonation wave travels along the fuse.

    • VOD stands for Velocity of Detonation.

    • It is a measure of how fast the detonation wave propagates through the fuse.

    • The VOD of a detonating fuse depends on factors such as the type of explosive used and the composition of the fuse.

    • A higher VOD means the detonation wave travels faster, resulting in a quicker explosion.

    • Different ...

  • Answered by AI
  • Q6. Safety fuse consist core of
  • Q7. In the detonator the priming charge is
  • Ans. 

    The priming charge in a detonator is the initial explosive charge that initiates the main explosive charge.

    • The priming charge is a small amount of explosive material that is sensitive to heat, shock, or friction.

    • It is designed to ignite quickly and reliably to initiate the main explosive charge.

    • The priming charge is usually contained within a small metal or plastic capsule.

    • Examples of priming charges include lead azide...

  • Answered by AI
  • Q8. Sheathed explosive coated with a sheath of
  • Ans. 

    A sheathed explosive is coated with a protective covering.

    • The sheath provides a layer of protection to the explosive material.

    • The sheath can be made of materials like plastic or rubber.

    • The purpose of the sheath is to prevent accidental ignition or detonation.

    • Examples of sheathed explosives include dynamite and blasting caps.

  • Answered by AI
  • Q9. The ANFO the water content should not be more than
  • Q10. The gelling agent in slurry explosive is
  • Ans. 

    The gelling agent in slurry explosive is typically a mixture of water and a thickening agent.

    • The gelling agent is used to increase the viscosity of the explosive mixture.

    • Common thickening agents used in slurry explosives include guar gum, carboxymethyl cellulose (CMC), and xanthan gum.

    • The gelling agent helps to suspend solid particles in the explosive mixture, allowing for better distribution and control of the explosi...

  • Answered by AI
  • Q11. The VOD of emulsion explosive is
  • Ans. 

    The VOD of emulsion explosive refers to its Velocity of Detonation.

    • VOD is a measure of how fast the explosive reaction propagates through the material.

    • It is an important characteristic for determining the efficiency and safety of explosive materials.

    • Higher VOD explosives are typically used for blasting hard rock formations.

    • Lower VOD explosives are used in situations where a controlled and less destructive explosion is

  • Answered by AI
  • Q12. The shovel can dig below ground upto
  • Q13. The output capacity of the dragline with 4.5 to 7.5 cu.m is million cu.mper year
  • Ans. 

    The output capacity of the dragline with 4.5 to 7.5 cu.m is in million cu.m per year.

    • The output capacity of the dragline depends on the size of the bucket it uses.

    • A larger bucket size allows for a higher output capacity.

    • The dragline's efficiency and operating conditions also affect its output capacity.

    • The output capacity can be calculated by considering the average number of cycles per hour and the bucket fill factor.

    • F...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - I am experienced shotfirer and team leader experts and management

Top Coal India Mining Overman Interview Questions and Answers

Q1. The max width of the gallery in Indian coal mines is
View answer (4)

Mining Overman Interview Questions asked at other Companies

Q1. The max width of the gallery in Indian coal mines is
View answer (4)
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Newspaper Ad and was interviewed before Jul 2022. There were 2 interview rounds.

Round 1 - Aptitude Test 

COMPUTER BASED TEST, ALL INDIA LEVEL OPEN EXAM

Round 2 - One-on-one 

(2 Questions)

  • Q1. TELL ME ABOUT YOUR SELF, ABOUT PROCUREMENT ACTIVITIES, INVENTORY HANDLING, EVALUATION OF SELLERS, PAST PERFORMANCE EVALUATION OF VENDORS
  • Q2. TYPES OF INVENTORY ANALYSIS, WILL TO RELOCATE TO MINING AREAS, WHY ARE YOU LEAVING YOUR PRESENT JOB.
  • Ans. 

    Types of inventory analysis, willingness to relocate, reason for leaving current job

    • Types of inventory analysis include ABC analysis, XYZ analysis, and cycle counting

    • I am willing to relocate to mining areas for career growth and new opportunities

    • I am leaving my current job to seek a more challenging role with greater responsibilities

  • Answered by AI

Material Management Executive Interview Questions asked at other Companies

Q1. TYPES OF INVENTORY ANALYSIS, WILL TO RELOCATE TO MINING AREAS, WHY ARE YOU LEAVING YOUR PRESENT JOB.
View answer (1)

Coal India interview questions for popular designations

 Management Trainee

 (16)

 Deputy Manager

 (2)

 Graduate Engineer Trainee (Get)

 (2)

 Management Trainee Mining

 (2)

 Accountant

 (1)

 Advisor

 (1)

 Apprentice Trainee

 (1)

 Assistant Manager

 (1)

Accountant Interview Questions & Answers

user image Anonymous

posted on 21 Oct 2023

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed before Oct 2022. There were 2 interview rounds.

Round 1 - Group Discussion 

About company progress

Round 2 - HR 

(1 Question)

  • Q1. About company help

Interview Preparation Tips

Interview preparation tips for other job seekers - No any advice

Accountant Interview Questions asked at other Companies

Q1. What journal is made when purchase requisition is created
View answer (24)

Get interview-ready with Top Coal India Interview Questions

Interview experience
4
Good
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Newspaper Ad and was interviewed before Apr 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - Aptitude Test 

General Aptitute Test against the GATE Score.

Round 3 - Technical 

(1 Question)

  • Q1. Questions from respective Engineering Branch, to which the applicant has applied for.

Interview Preparation Tips

Interview preparation tips for other job seekers - To apply to any of the CPSEs, your GATE score is the first Filter. Followed by written Test. Finally the Personal Interview.

DGM Operations Interview Questions asked at other Companies

Q1. How do you plan to do the mold manufacturing process.
View answer (2)
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
More than 8 weeks
Result
Selected Selected

I applied via Newspaper Ad and was interviewed before Jan 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. Related to medical field. Treatment given in TB. Working environment
  • Q2. Treatment given in TB
  • Ans. Treatment in case of coal mining injury
  • Answered Anonymously

Interview Preparation Tips

Topics to prepare for Coal India Chief Medical Officer interview:
  • Any current topic
Interview preparation tips for other job seekers - Know your subject completely.
Be Allert and confident in replying
Dress your self properly on the day of interview

Chief Medical Officer Interview Questions asked at other Companies

Q1. How a big industrial injury can be managed.
Add answer

I applied via Company Website and was interviewed before Jul 2021. There was 1 interview round.

Round 1 - One-on-one 

(3 Questions)

  • Q1. Do you know about Coal India and its remote locations?
  • Ans. 

    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.

  • Answered by AI
  • Q2. Why do you want to join here
  • Q3. Tell me something about yourself and your experience

Interview Preparation Tips

Interview preparation tips for other job seekers - Stick to basics. Be with a positive and enthusiastic attitutude.

Deputy Manager Interview Questions asked at other Companies

Q1. 1.WHAT IS SPECIAL OF UR HOME TOWN 2.Who is Main compitetor with us and which products...3.what is main business in your area and its functions...4 Previous comoany achevements 5.Your strengts and weakness.
View answer (67)

MT Finance Interview Questions & Answers

user image KVR KVR

posted on 30 Jun 2021

Interview Questionnaire 

1 Question

  • Q1. Normal HR and Technical questions related to finance?

Interview Preparation Tips

Interview preparation tips for other job seekers - Good

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

Interview preparation tips for other job seekers - Be yourself and prepare for OOPS at most

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (180)

Coal India Interview FAQs

How many rounds are there in Coal India interview?
Coal India interview process usually has 1-2 rounds. The most common rounds in the Coal India interview process are Technical, Resume Shortlist and Aptitude Test.
What are the top questions asked in Coal India interview?

Some of the top questions asked at the Coal India interview -

  1. 1.What is industry 4.0 2., what is ECC, what is edge computing, 3.what is TDI m...read more
  2. The max width of the gallery in Indian coal mines...read more
  3. 2. What is the difference in the speeds of camshaft and cranksha...read more
How long is the Coal India interview process?

The duration of Coal India interview process can vary, but typically it takes about less than 2 weeks to complete.

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Coal India Interview Process

based on 28 interviews

Interview experience

4.6
  
Excellent
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Coal India Reviews and Ratings

based on 521 reviews

4.0/5

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3.4

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3.9

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4.0

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Company culture

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