Jindal Stainless Melter Interview Questions and Answers

Q1. How to know if Hydraulic cylinder leakage
Ans. 
Check for hydraulic cylinder leakage by inspecting for oil puddles, decreased performance, and abnormal noises.
• Inspect the area around the hydraulic cylinder for oil puddles or stains

• Monitor the performance of the hydraulic system for any decrease in efficiency

• Listen for any abnormal noises coming from the hydraulic cylinder during operation
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Q2. What is NAS
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NAS stands for Network Attached Storage, which is a type of storage device that connects to a network to provide shared storage space.
• NAS devices are typically used for storing and sharing files, data backups, and media streaming within a network.

• NAS devices can be accessed by multiple users and devices simultaneously over a network.

• NAS devices often have their own operating system and can run various applications such...read more
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Q1. Process of production
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Q2. Final production process
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Q1. Working principal of pump
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Pumps work by creating a pressure difference to move fluid from one place to another.
• Pumps use mechanical energy to increase the pressure of a fluid and move it through a system

• They can be classified into different types such as centrifugal pumps, positive displacement pumps, etc.

• The working principle involves the conversion of mechanical energy into hydraulic energy

• Examples include water pumps in buildings, fuel pumps
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Q2. What is working principal of cooling tower
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Cooling towers work on the principle of evaporative cooling to remove heat from a process or building.
• Cooling towers use water as a cooling medium to absorb heat from a process or building.

• The hot water is pumped to the top of the tower and distributed over the fill media.

• As the water flows over the fill media, some of it evaporates, taking away heat and cooling the rest of the water.

• The cooled water is then collected ...read more
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Q3. Pollution bag filter specifications
Ans. 
Pollution bag filter specifications include material type, filtration efficiency, airflow capacity, and pressure drop.
• Material type: Bag filters can be made of various materials such as polyester, polypropylene, or fiberglass.

• Filtration efficiency: This indicates the percentage of particles the filter can capture. Higher efficiency filters are more effective but may have higher pressure drops.

• Airflow capacity: The maxi...read more
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Q4. Softner water parameter
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Q5. What is the formula of centrifugal pump head
Ans. 
The formula for centrifugal pump head is H = (Q * SG) / (3.14 * D^2 * 2.31)
• Head (H) is calculated using the flow rate (Q), specific gravity (SG), and diameter of the impeller (D)

• The formula is derived from the basic equation for head in a centrifugal pump

• Example: H = (100 gpm * 1.0) / (3.14 * 0.5^2 * 2.31) = 45.75 ft
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Gear box replacement work

Q1. Barring checking and replacement work and safety first and all ppes sure and paper work and try out and walked away clean and fresh and blumber block top cover open and old slue Barring remove and new slue...read more
Ans. 
Blumber block top cover open and old slue Barring remove and new slue Barring replace and nut tightening sure and blumber block top cover fixed and bolts nut tightening sure and paper work cancelled and conveyer belt running ok
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Q2. Motor replacement work and safety first and all ppes sure and paper work and try out and walked away clean and fresh and bolts nut open and old motor remove and new motor replace and bolts nut tightening s...read more
Ans. 
Bolt nut open and old motor remove and new motor replace and bolt nut tightening sure and Dayal gauge eliminate process ok and paper work cancelled and conveyer belt running ok
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Q3. V-scraper replacement work and safety first and all ppes sure and paper work and try out and walked away clean and fresh and bolts nut open and old v-scraper remove new v-scraper replace and bolts nut tigh...read more
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Q4. Discharge Chute replacement work and safety first and all ppes sure and paper work and try out and walked away clean and fresh and bolts nut open and old discharge chute remove and new discharge chute repl...read more
Ans. 
Bolt nut open and old discharge chute remove and new discharge chute replace and bolts nut tightening sure and paper work cancelled and conveyer belt running ok
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Q5. Barring Greasing work and safety first and all ppes sure and paper work and all pulley checking and savings greasing sure and paper work cancelled
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Q6. Gear box replacement work and safety first and all ppes sure and paper work and try out and walked away clean and fresh and bolts nut open and old gear box remove and new gear box replace and bolts nut tig...read more
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Q1. What is Hydraulic system and it's components?
Ans. 
A hydraulic system uses fluid to transmit power and consists of components like pumps, cylinders, valves, and hoses.
• Hydraulic pump: generates flow to the hydraulic system

• Hydraulic cylinder: converts fluid power into mechanical power

• Hydraulic valve: controls the flow and pressure of the fluid

• Hydraulic hose: carries the fluid between components
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Q2. Explain steel making process?
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Steel making process involves converting iron ore into steel through various stages like smelting, refining, and casting.
• Iron ore is mined and transported to a steel mill.

• The iron ore is smelted in a blast furnace to remove impurities and create molten iron.

• The molten iron is then refined in a basic oxygen furnace or an electric arc furnace to adjust the carbon content and other alloying elements.

• The refined molten iro...read more
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Q1. Basic questions
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Q2. What is your name
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Q3. Total experience
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Q4. Are u interested
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Q5. What is preventive maintenance
Ans. 
Preventive maintenance is a proactive approach to maintenance that involves regularly inspecting, servicing, and repairing equipment to prevent breakdowns and extend its lifespan.
• Preventive maintenance involves scheduled inspections and maintenance tasks.

• It aims to identify and address potential issues before they cause equipment failure.

• Examples of preventive maintenance include lubricating moving parts, replacing wor...read more
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Q1. Company Experiences
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Q2. Hydraulic cylinder
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Q3. Gearbox question
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Q4. How many types valve
Ans. 
There are several types of valves used in mechanical systems.
• Gate valve

• Ball valve

• Butterfly valve

• Globe valve

• Check valve

• Diaphragm valve

• Plug valve

• Needle valve

• Pressure relief valve

• Safety valve
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Q5. Work experience
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Q6. Gearbox used oil
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Q1. File is made of
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Q2. Steel rule is a made of
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Q3. The point angle of scriber is
Ans. 
The point angle of scriber is the angle between the two cutting edges of the scriber.
• The point angle is typically between 30 and 60 degrees.

• It affects the sharpness and durability of the scriber.

• A larger point angle will result in a stronger but less sharp scriber.

• A smaller point angle will result in a sharper but less durable scriber.
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Q4. The point angle of centre punch
Ans. 
The point angle of a centre punch is typically 90 degrees.
• The point angle is the angle between the two sides of the punch tip.

• A 90 degree point angle is the most common and versatile for general use.

• Different point angles can be used for specific applications, such as 60 degrees for softer materials.

• The point angle affects the size and shape of the indentation made by the punch.
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