Jindal Steel and Power Maintenance Engineer Interview Questions and Answers

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
Ans. 
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
Ans. 
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
Ans. 
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
Ans. 
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. Types of CNC machine?
Ans. 
CNC machines are automated milling machines that can perform various tasks with precision and accuracy.
• Types of CNC machines include milling machines, lathes, plasma cutters, and routers.

• Each type of CNC machine is designed for specific tasks such as cutting, drilling, shaping, and finishing.

• CNC machines can be categorized based on their axis configuration, such as 3-axis, 4-axis, and 5-axis machines.

• Some examples of p...read more
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Q2. What is electrical safety?
Ans. 
Electrical safety refers to practices and precautions taken to prevent electrical hazards and accidents.
• Ensuring all electrical equipment is properly maintained and inspected regularly

• Using appropriate personal protective equipment (PPE) when working with electricity

• Following proper lockout/tagout procedures to de-energize equipment before maintenance

• Training employees on electrical safety protocols and procedures

• Imple...read more
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Q1. Basic working questions. If you are serious for your work u can be selected.
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Q2. Perameter questions
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Q1. Work on details of all technical aspects.
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Q2. Low cost automation project details
Ans. 
Implemented a low cost automation project for packaging line resulting in 30% reduction in labor cost.
• Identified manual tasks that could be automated

• Researched and selected low cost automation solutions

• Designed and implemented automation system

• Conducted testing and fine-tuning for optimal performance

• Trained operators on new system

• Achieved significant cost savings and increased efficiency
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English, quant and reasoning based question

Topics related to company like industry 4.0

Q1. Basic plc, programme, drives, electrical machines
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Q2. Personality, analytical question
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Q1. Personality, attitude
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Q1. Mechanical Maintenance
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Q1. Mechanical Maintenance Engineer
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Q2. Maintenance of machine in Mechanical
Ans. 
Maintenance of machines in Mechanical involves regular inspection, cleaning, lubrication, and repair of mechanical components.
• Regularly inspect machines for wear and tear

• Clean machines to prevent buildup of dirt and debris

• Lubricate moving parts to reduce friction and prevent damage

• Repair or replace damaged components to prevent further damage

• Follow manufacturer's maintenance schedule and guidelines

• Train operators on pr
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Q3. Utility &Machines Mechanical Maintenance
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Q4. Utility &Machinery mechanical Maintenance
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Q5. Utility Operation and Mechanical Maintenance of machine shops
Ans. 
Utility operation and mechanical maintenance are crucial for efficient machine shop operations.
• Utility operation involves managing power, water, and air supply to the machines.

• Mechanical maintenance includes regular inspections, cleaning, and repairs of the machines.

• Proper lubrication and alignment of machine parts are also important for smooth operations.

• Examples of machines in a machine shop include lathes, milling m
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Q6. Utility Operation and mechanical Maintenance
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Q7. Utility Operation and maintenance
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Q8. All mechanical Engineering
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Q9. Mechanical +Afew Electrical equipment
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Q10. ETP +hydraulic press +Hand
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Q11. Hand lifter maintenance
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Q12. CNC Lath m/c mechanical Maintenance
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Q13. About mechanical Maintenance
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