NMDC Limited Mining Engineer Trainee Interview Questions and Answers

Q1. Do you have an awareness about Change Management?
Ans. 
Change Management involves structured approaches to transitioning individuals, teams, and organizations to a desired future state.
• Change Management is crucial for minimizing resistance during transitions.

• It includes planning, implementing, and monitoring changes effectively.

• For example, in software development, Agile methodologies emphasize iterative changes.

• Effective communication is key; stakeholders should be inform...read more
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Q2. What do you do when an machine goes in breakdown?
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In case of a machine breakdown, I follow a systematic approach to diagnose and resolve the issue efficiently.
• Assess the situation: Check for any immediate hazards or safety concerns before approaching the machine.

• Identify the problem: Look for error codes, unusual sounds, or visual indicators that can help diagnose the issue.

• Consult documentation: Refer to the machine's manual for troubleshooting steps and maintenance ...read more
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Q3. Give me an technical overview of the equipments you have overlooked.
Ans. 
I have overseen various engineering equipment, focusing on maintenance, operation, and optimization for efficiency.
• Monitored and maintained HVAC systems to ensure optimal performance and energy efficiency.

• Oversaw the operation of CNC machines, ensuring precision in manufacturing processes.

• Managed the calibration of testing equipment, such as oscilloscopes and multimeters, for accurate measurements.

• Conducted regular ins...read more
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Q1. Building construction
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Q2. Road construction
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Q1. 1-Relief valve digram and it's function
Ans. 
A relief valve is a safety device used to control or limit pressure in a system by releasing excess pressure.
• Relief valves are commonly used in steam boilers, pressure vessels, and pipelines.

• They are designed to open and release excess pressure when the pressure inside the system exceeds a certain limit.

• This helps prevent damage to the system and ensures the safety of personnel working with the system.

• Relief valves can...read more
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Q2. Process flow digram of plate rolling mill
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A process flow diagram of a plate rolling mill
• Raw materials are loaded onto the mill

• The plate is rolled to the desired thickness and length

• The plate is then cooled and cut to size

• The finished product is inspected for quality

• The product is then packaged and shipped to customers
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Q1. Related our Work experience
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Q1. Related our Qualification
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Q1. Thermal power plant is boiler maintenance and boul mill explain
Ans. 
Boiler maintenance and bowl mill are crucial for the efficient functioning of a thermal power plant.
• Boiler maintenance involves regular cleaning, inspection, and repair of the boiler to ensure its safe and efficient operation.

• Bowl mill is a type of grinding mill used in power plants to grind coal and convert it into a powder form that can be burned more efficiently.

• Regular maintenance of bowl mills is necessary to ensu...read more
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Q1. Why are you choose electrical maintenance and Automation
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Q1. Density of slurry
Ans. 
Density of slurry is the mass of the slurry per unit volume.
• Density of slurry is typically measured in kg/m^3 or lb/ft^3.

• It is calculated by dividing the mass of the slurry by its volume.

• The density of slurry can vary depending on the concentration of solids in the liquid.

• For example, a slurry with a high concentration of solids will have a higher density.
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Q2. SPL meaning and SEL meaning
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SPL stands for Sound Pressure Level and SEL stands for Sound Exposure Level.
• SPL is a measure of sound intensity relative to a reference level.

• SEL is a measure of sound exposure over a period of time, typically in decibels.

• Both SPL and SEL are commonly used in the field of acoustics and noise control.
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Q3. Whit is red area
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The red area typically refers to a section or region that is highlighted or marked in the color red.
• Red area can indicate danger or warning.

• In engineering, red areas on diagrams or blueprints may signify areas of high risk or critical components.

• Examples: red area on a map indicating a fire hazard zone, red area on a circuit diagram highlighting a high voltage section.
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Q1. Material science and Internal combustion engine Manufacturing processe
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