Grasim Industries Instrumentation Technician Interview Questions and Answers

Q1. Heat tranfer, heat exchanger, types of pump snd typed of resctor, condenser gas cooler chiller types of sgitator etc.
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Q2. Types of vaccume pump
Ans. 
There are several types of vacuum pumps, including rotary vane, diaphragm, scroll, and turbomolecular pumps.
• Rotary vane pumps are commonly used in industrial applications and have a simple design.

• Diaphragm pumps are oil-free and used in applications where contamination is a concern.

• Scroll pumps are oil-free and used in applications where a clean vacuum is required.

• Turbomolecular pumps are used in high vacuum applicatio...read more
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Q1. Tell me about about yourself?family background.
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I come from a close-knit family with a strong work ethic and values.
• Family is very important to me and has played a significant role in shaping who I am today.

• My parents have always emphasized the importance of hard work and perseverance.

• I have a supportive family who has always encouraged me to pursue my goals and dreams.

• Growing up, I learned the value of teamwork and communication from my siblings.
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Q2. Since I was from caustic chlorine background so they asked me about cl2 emergency handling ,TLV value
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Q3. Hcl synthesis process,and it's interlock ,problem in hcl furnace,
Ans. 
HCl synthesis process, interlocks, and problems in HCl furnace.
• HCl synthesis involves combining hydrogen gas and chlorine gas in the presence of a catalyst.

• Interlocks in the process ensure safety measures are in place to prevent accidents.

• Common problems in HCl furnaces include corrosion, leaks, and temperature control issues.
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Q1. What will happen when flow of cooling water reduces in furnace?
Ans. 
Reduced flow of cooling water in furnace can lead to overheating, potential damage to equipment, and decreased efficiency.
• Overheating of furnace components

• Potential damage to furnace equipment

• Decreased efficiency in cooling process
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Q2. What is the impact when freon compressor got tripped and what to do ?
Ans. 
When a freon compressor gets tripped, it can lead to a loss of cooling capacity and potential damage to the system.
• Check for any fault codes or alarms on the compressor control panel.

• Inspect the compressor for any visible signs of damage or overheating.

• Reset the compressor and monitor its operation to ensure it is functioning properly.

• Investigate the root cause of the trip to prevent future occurrences.

• Consider contact...read more
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Q1. Process parameters
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Q2. Manufacturing process cement
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Q1. CCR OPERATION in cement plant
Ans. 
CCR operation in a cement plant involves monitoring and controlling the process parameters to ensure efficient production.
• CCR stands for Central Control Room, where operators monitor and control the entire cement production process.

• Operators in the CCR are responsible for adjusting process parameters such as kiln feed, fuel consumption, and raw material composition.

• Efficient CCR operation is crucial for maintaining qua...read more
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Q2. Plant optimization in cement plant
Ans. 
Plant optimization in cement plant involves improving efficiency, reducing costs, and maximizing output.
• Implementing advanced process control systems to optimize production

• Regularly monitoring equipment performance and conducting maintenance to prevent breakdowns

• Utilizing alternative fuels and raw materials to reduce energy consumption

• Optimizing the use of additives to improve cement quality and reduce clinker usage
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Q1. Manufacturing process
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Q2. What is raw material
Ans. 
Raw material is the basic material used in the production of goods.
• Raw material is the primary substance or component used to manufacture products.

• It can be natural resources like wood, metal, or minerals.

• It can also be processed materials like chemicals or plastics.

• Raw materials are transformed into finished products through manufacturing processes.
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Q3. What is clinker
Ans. 
Clinker is a nodular material produced during the cement manufacturing process.
• Clinker is a key ingredient in the production of cement.

• It is formed by heating limestone, clay, and other materials in a kiln.

• The cooled clinker is then ground into a fine powder to produce cement.

• The quality of clinker greatly affects the quality of the final cement product.
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Q4. What is packing plant kapisity
Ans. 
Packing plant capacity refers to the maximum amount of products that can be processed and packaged in a plant within a specific time frame.
• Packing plant capacity is usually measured in units per hour or units per day.

• It is important for production engineers to optimize the packing plant capacity to meet demand and maximize efficiency.

• Factors that can affect packing plant capacity include equipment efficiency, productio
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Q5. What is coal mill kapisity
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Coal mill capacity refers to the maximum amount of coal that can be processed by the mill in a given time period.
• Coal mill capacity is typically measured in tons per hour or tons per day.

• It is important for production engineers to optimize coal mill capacity to meet production demands.

• Factors affecting coal mill capacity include the type of coal, moisture content, and mill design.

• Increasing coal mill capacity can invol...read more
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Q1. What is ball mill
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A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing processes, paints, pyrotechnics, ceramics, and selective laser sintering.
• Consists of a hollow cylindrical shell rotating about its axis

• The axis of the shell may be horizontal or at a small angle to the horizontal

• The grinding media is the balls, which may be made of steel, stainless steel, ceramic, or rubber

• The inner surface o...read more
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Q2. What is raw mill
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Raw mill is a machine used in cement production to grind raw materials into a fine powder before being used in the kiln.
• Raw mill is used in the cement industry to grind raw materials like limestone, clay, and iron ore into a fine powder.

• The powdered raw materials are then blended and heated in a kiln to form clinker, which is the intermediate product in cement production.

• Common types of raw mills include ball mills, ro...read more
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Q1. How to increase productivity Smoothly operation
Ans. 
Increasing productivity and smooth operation can be achieved through proper planning, efficient processes, and continuous improvement.
• Identify bottlenecks and inefficiencies in the production process

• Implement lean manufacturing principles to eliminate waste and streamline processes

• Invest in automation and technology to improve efficiency

• Provide training and development opportunities for employees to enhance their skill...read more
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Q2. Plant operation smoothly
Ans. 
Plant operation can be made smooth by implementing efficient processes and regular maintenance.
• Regular maintenance of equipment and machinery

• Efficient scheduling of production runs

• Effective communication between departments

• Continuous improvement initiatives

• Proper training of employees

• Use of automation and technology

• Monitoring and analysis of production data

• Implementation of safety protocols

• Effective inventory managemen
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Q1. How you beneficial to our organisation ?
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Q2. What is your previous company achievement?
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Q1. Why you switch your current organisation?
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Q2. What is your acceptance salary
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Q1. Basics about cement industry
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Diplom cement technology, cement is a most useful resource.

Q1. 1. Cement manufacturing process .
Ans. Crossing, screening, stacking,reclaiming,grounding,free heating,burning,cooling,grainding,add materials prosentes.
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Q2. 2. Cement Row materials
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Q3. Raw mill vrm boll mill
Ans. Grinding unit vrm speed and rpm , boll mill speed
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Vrm rpm speed 20-25 and boll mill rpm speed 25-27