Coal India Deputy Manager Interview Questions and Answers

Q1. What are you like about company.?
Ans. 
I like good work and best productions of company.
Answered by SEVALAL YADAV
Add your answer
Q2. What are you dislike about company?
Ans. 
I dislike the lack of communication and transparency within the company.
• Lack of communication between departments

• Unclear decision-making processes

• Limited opportunities for feedback and suggestions

• Inconsistent updates on company goals and changes
Answered by AI
View 1 more answer
Q3. What is your work experience?
Ans. 
I have well knowle of computer..I retired from Indian Army as a rank of Subedar clerk . I obtained training of security ospects .
Answered by SEVALAL YADAV
Add your answer
Q4. Please explain your self?
Add your answer
Q5. What is your hobby?
Add your answer

Q1. Explain GTG Operation and load sharing
Ans. 
GTG operation involves multiple generators working together to share the load and ensure continuous power supply.
• GTG stands for Gas Turbine Generator

• In GTG operation, multiple generators are synchronized to work together

• Load sharing ensures that the power demand is distributed evenly among the generators

• This helps in maintaining a stable power supply and prevents overloading of any single generator
Answered by AI
Add your answer

Q1. Rope dia calculation for given capacity of overhead crane.
Ans. 
Calculate rope diameter based on overhead crane capacity
• Calculate the weight of the load the crane will be lifting

• Determine the maximum load capacity of the crane

• Use the formula: Rope diameter = (Load weight / (2 * Safe working load * Safety factor * π))^0.5

• For example, if the load weight is 10 tons, safe working load is 5 tons, and safety factor is 2, the rope diameter would be calculated as: (10000 / (2 * 5 * 2 * 3.1
Answered by AI
Add your answer
Q2. Centrifugal pump efficiency curves
Ans. 
Centrifugal pump efficiency curves show the relationship between flow rate and efficiency of the pump.
• Efficiency curves help in selecting the right pump for a specific application

• They provide information on the pump's performance at different operating points

• Efficiency curves typically have a peak efficiency point and a best efficiency point (BEP)

• Understanding these curves can help in optimizing pump performance and en
Answered by AI
Add your answer
Q3. Cost of solenoid valve and servo.
Ans. 
The cost of solenoid valves and servos can vary depending on the brand, size, and quality.
• Cost of solenoid valves can range from $10 to $1000+ depending on size and brand.

• Servos can cost anywhere from $20 to $500+ depending on torque and brand.

• Higher quality solenoid valves and servos may have a higher price tag.

• Consider factors like durability, performance, and warranty when comparing costs.
Answered by AI
Add your answer

Q1. Compensating salary by giving 2 jump on post
Ans. But I didn't accepted their condition and said NO for job. Finally they agreed and at present I am working here.
Answered Anonymously
Add your answer

Q1. Quation related siemens plc automation and dc/ ac motors/drives
Add your answer

Q1. Puzzle of ball. How to figure odd one out
Add your answer
Q2. Your aspiration likes dislikes
Add your answer

Q1. About yourself and carrier path till date
Add your answer

Basic aptitude test related to number system.

Q1. Technical round was related to engineering branch.
Add your answer