Jindal Steel and Power Assistant Manager Maintenance Interview Questions and Answers

Q1. Decision making qualities.
Ans. 
Good decision making qualities are essential for an Assistant Manager Maintenance to effectively handle maintenance issues and make strategic decisions.
• Ability to analyze situations and gather relevant information

• Consideration of potential outcomes and risks

• Ability to prioritize tasks and make timely decisions

• Consultation with team members or experts when needed

• Flexibility to adapt to changing circumstances

• Examples: De...read more
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Q2. Your careers aspects
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Q3. Location issue
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Q1. What is Hydrolic system
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Hydraulic system is a technology that uses fluids to transmit power and energy.
• Hydraulic systems use a liquid, usually oil, to transmit power and energy.

• They work by applying force at one point and transmitting it to another point using an incompressible fluid.

• Hydraulic systems are commonly used in heavy machinery, such as excavators and cranes.

• They are also used in braking systems in cars and airplanes.

• Hydraulic syste...read more
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Q2. How to reduce Downtime.
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Reducing downtime can be achieved through proper maintenance planning, regular equipment inspections, and quick response to issues.
• Implement a preventive maintenance program to identify and address potential issues before they cause downtime.

• Conduct regular equipment inspections to identify and address any issues early on.

• Train employees on proper equipment use and maintenance to prevent breakdowns caused by human erro...read more
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Q1. Regarding Transformers,HT motors,Automation ,PLC logics & SAP
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Q2. Also recruiters look your personality
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Q3. Communication skills
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Q4. Experience descriptions
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Q1. What is the use of lubricant in roling mill
Ans. 
Lubricant in rolling mills reduces friction between metal surfaces, prevents wear and tear, and improves efficiency.
• Lubricant reduces friction between metal surfaces in rolling mills

• Prevents wear and tear on machinery

• Improves efficiency by reducing energy consumption

• Helps in cooling the metal during the rolling process

• Examples: oil-based lubricants, grease, graphite-based lubricants
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Q2. What are the major cause of roll broken
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The major causes of roll breakage in maintenance engineering include material defects, improper setup, excessive tension, and foreign objects.
• Material defects such as weak spots or impurities can weaken the roll and lead to breakage.

• Improper setup or alignment of the roll can cause uneven stress distribution and eventual breakage.

• Excessive tension on the roll can exceed its load-bearing capacity and cause it to break.

• F...read more
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Q3. What is cause of rolling mill bearing broken
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The main causes of rolling mill bearing breakage are lack of lubrication, contamination, overloading, and misalignment.
• Lack of lubrication can lead to increased friction and heat generation, causing the bearing to fail prematurely.

• Contamination from dirt, debris, or water can accelerate wear and tear on the bearing surfaces.

• Overloading the bearing beyond its capacity can cause excessive stress and lead to failure.

• Misal...read more
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Q4. Compressor overhead cause
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Compressor overhead cause can be due to various factors such as high discharge pressure, low suction pressure, dirty filters, or worn out components.
• High discharge pressure can lead to overheating of the compressor.

• Low suction pressure can cause the compressor to work harder and overheat.

• Dirty filters can restrict airflow and cause the compressor to overheat.

• Worn out components such as valves or seals can lead to ineff
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Q5. How to measure wire rope condition
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Wire rope condition can be measured by visual inspection, non-destructive testing, and load testing.
• Visual inspection for signs of wear, corrosion, broken wires, and distortion

• Non-destructive testing methods like magnetic particle inspection, ultrasonic testing, and dye penetrant testing

• Load testing to assess the strength and integrity of the wire rope under working conditions
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Q6. Lubricant chemicals property
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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
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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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Q1. Pump main tenec
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Q2. Machine maintenance
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Q1. Machanical work
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Q2. Crean maintenance
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Q1. Ptm all parts Reapair
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Q2. Bearing, Neumatic cyclender
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Q3. Hydrolic cyclender
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Q4. Wheel reapair, Gear box
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Common aptitude test

Q1. Electrical technical questions
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Q1. Personal details
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