ArcelorMittal Nippon Steel QA QC Engineer Interview Questions and Answers

Q1. How does your job role makes you technically sound? Mechanical properties of the alloys and how to test them? Technical achievements in your job field?
Ans. 
My job role as a QA QC Engineer has made me technically sound by providing me with in-depth knowledge of mechanical properties of alloys and testing methods.
• Regularly conducting tests on various alloys to determine their mechanical properties such as strength, hardness, and ductility

• Utilizing testing methods such as tensile testing, hardness testing, impact testing, and metallography to assess the quality of alloys

• Anal...read more
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Q1. Why do you want to join us? What are your expectations from us?
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Discussed at infrastructure

Q1. Technical field related questions
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Q2. HR related questions.
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Q3. AI related questions
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Q1. HR related questions
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Q1. How to check the motor
Ans. 
To check the motor, you can perform various tests and inspections to ensure it is functioning properly.
• Check for any physical damage or wear on the motor casing

• Inspect the wiring connections for any loose or damaged wires

• Measure the voltage and current going into the motor to ensure it is within the specified range

• Test the motor's insulation resistance to check for any faults

• Run the motor under load to see if it operat
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Q2. How to do power analysis
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Power analysis involves measuring and analyzing the electrical power consumption of a system or device.
• Identify the components of the system or device that consume power.

• Measure the current and voltage across these components using appropriate instruments.

• Calculate the power consumption using the formula P = VI, where P is power, V is voltage, and I is current.

• Analyze the power consumption data to identify any ineffici...read more
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Q3. What is tranfamer
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A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Transformers are used to increase or decrease voltage levels in electrical circuits.

• They consist of two coils of wire, known as the primary and secondary coils.

• Examples of transformers include power transformers used in electrical substations and voltage transformers in electronic devices.
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Q1. What is Pipe Layout.
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Pipe layout refers to the arrangement and positioning of pipes in a system to ensure efficient flow of fluids or gases.
• Pipe layout involves determining the route, size, and elevation of pipes within a system.

• Consideration must be given to factors such as pressure drop, flow rate, and accessibility for maintenance.

• Proper pipe layout can optimize system performance and minimize potential issues such as leaks or blockages
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Q2. Why Position Displacement Pumps are used for Hydraulic.
Ans. 
Position displacement pumps are used for hydraulic systems due to their ability to provide precise control over fluid flow and pressure.
• Position displacement pumps offer accurate and repeatable flow rates, making them ideal for applications requiring precise control.

• These pumps are capable of maintaining constant pressure, which is crucial in hydraulic systems to ensure consistent performance.

• Position displacement pump...read more
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Q3. Brief about pipe scheduled.
Ans. 
Pipe schedule refers to the wall thickness of pipes used in various industries.
• Pipe schedule is a way to standardize the thickness of pipes for different applications.

• It is denoted by a number followed by 'S' (e.g. Schedule 40, Schedule 80).

• Higher schedule numbers indicate thicker walls for higher pressure applications.

• Pipe schedules are important for ensuring compatibility and safety in piping systems.
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Q4. Procedure of Replacement of Pump in a Hydraulic System.
Ans. 
The procedure for replacing a pump in a hydraulic system involves draining the system, disconnecting the old pump, installing the new pump, and refilling the system.
• Drain the hydraulic system to prevent spills and contamination.

• Disconnect the old pump from the system by removing any connecting hoses or pipes.

• Install the new pump in the same location as the old pump, ensuring proper alignment and connection.

• Refill the h...read more
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Q5. How System Pressure is set in a Hydraulic system.
Ans. 
System pressure in a hydraulic system is set using a pressure relief valve or a pressure regulator.
• System pressure can be set using a pressure relief valve which opens to release excess pressure.

• A pressure regulator can also be used to control the pressure by adjusting the setting.

• The pressure setting is typically determined based on the requirements of the hydraulic system and the components used.

• Monitoring devices su...read more
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Q6. What is TIG welding and why is it widely used in Jointing Hydraulic Pipes.
Ans. 
TIG welding is a welding process that uses a non-consumable tungsten electrode to produce the weld. It is widely used in jointing hydraulic pipes due to its precision and clean welds.
• TIG welding stands for Tungsten Inert Gas welding.

• It uses a non-consumable tungsten electrode to create the weld.

• TIG welding produces high-quality, clean welds with minimal spatter.

• The process allows for precise control over the welding ar...read more
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Q7. What are the procedures of cleaning pipe lines.
Ans. 
Cleaning pipe lines involves various procedures such as flushing, pigging, and chemical cleaning.
• Flushing involves using water or air pressure to remove debris and buildup from the pipes.

• Pigging uses a device called a 'pig' to scrape the inside of the pipe and push out any blockages.

• Chemical cleaning involves using specific chemicals to dissolve and remove stubborn deposits in the pipes.

• Regular maintenance and inspecti...read more
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Q8. What is NAS value and why its important to achieve with in standard limits.
Ans. 
NAS value is a measure of network-attached storage performance and reliability, important to achieve within standard limits for optimal data storage and access.
• NAS value stands for Network-Attached Storage value, which measures the performance and reliability of a storage system.

• It is important to achieve NAS value within standard limits to ensure optimal data storage and access speeds.

• Exceeding NAS value limits can re...read more
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Q9. How Conveyor alignment is done.
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Conveyor alignment is done by adjusting the idlers and pulleys to ensure the belt runs straight and centered on the conveyor frame.
• Check for any misalignment by observing the belt's position on the idlers.

• Adjust the idlers and pulleys to ensure the belt runs straight and centered.

• Use alignment tools such as laser alignment devices for precision.

• Regularly inspect and maintain the conveyor system to prevent misalignment ...read more
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Q10. What are the factors and its requirements to procure a Conveyor belt.
Ans. 
Factors and requirements for procuring a conveyor belt
• Consider the type of material being transported

• Determine the required capacity and speed of the conveyor belt

• Evaluate the environment where the conveyor belt will be used (e.g. temperature, humidity)

• Assess the maintenance and operating costs of the conveyor belt

• Check the safety features and regulations compliance of the conveyor belt

• Look into the reputation and reli...read more
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Q11. Types of Coupling uses and the procedure of alignment.
Ans. 
Couplings are used to connect two shafts together while allowing for some degree of misalignment. Alignment is crucial for proper functioning.
• Types of couplings include rigid, flexible, fluid, and magnetic couplings.

• Procedure for alignment involves checking shaft alignment using tools like dial indicators, laser alignment systems, or straightedges.

• Alignment process includes adjusting shims, moving machinery, and rechec...read more
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Q12. What is a Rapid wagon loading system.
Ans. 
A rapid wagon loading system is a technology used to quickly load goods onto train wagons for transportation.
• Utilizes automated machinery to load goods efficiently

• Reduces loading time significantly compared to manual loading

• Commonly used in industries such as mining, agriculture, and logistics

• Examples include conveyor belt systems, robotic arms for loading, and automated palletizing systems
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Q1. Machine transmission distribution
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Q2. Electric generation
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Q3. Electric measurement
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Q1. (1) tell your self, (2) Passt company work, (3) what is VFD and it's diagram, (4) Electrical maintenance related questions
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Q2. Motor related questions
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Q3. MCC and PCC panel
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Q1. (1) Salary discussion, (2) Experience related questions
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Q1. Power factor What is vfd Difference between ac and dc motor
Ans. 
Power factor is the ratio of real power to apparent power in an AC circuit. VFD stands for Variable Frequency Drive. AC motors run on alternating current while DC motors run on direct current.
• Power factor is a measure of how effectively electrical power is being used in a circuit.

• It is calculated by dividing the real power (in watts) by the apparent power (in volt-amperes).

• A power factor of 1 indicates that all the pow...read more
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Q2. Types of load cell
Ans. 
Types of load cells include strain gauge load cells, hydraulic load cells, and capacitive load cells.
• Strain gauge load cells measure the strain or deformation of a material.

• Hydraulic load cells use hydraulic fluid to measure force.

• Capacitive load cells measure changes in capacitance to determine force.

• Other types of load cells include piezoelectric load cells and pneumatic load cells.
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Q1. What is your favourite subject?
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Q2. Different types of starter
Ans. 
Starters are used to control the starting and stopping of motors. Different types of starters are used based on the motor's power rating and application.
• Direct On-Line (DOL) Starter

• Star-Delta Starter

• Auto Transformer Starter

• Soft Starter

• Variable Frequency Drive (VFD) Starter
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Q3. Parallel operations of transformer
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Parallel operation of transformers refers to connecting two or more transformers with the same voltage ratio and frequency to supply a common load.
• Parallel operation increases the capacity of the system and provides redundancy.

• The transformers must have the same voltage ratio, impedance, and phase angle.

• Proper synchronization is necessary to avoid circulating currents.

• Parallel operation can be achieved by using a commo...read more
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