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I applied via Walk-in and was interviewed in Mar 2024. There was 1 interview round.
CT current can be calculated by dividing the primary current by the turns ratio of the current transformer.
CT current = Primary current / Turns ratio
Primary current is the current flowing through the primary conductor
Turns ratio is the ratio of the number of turns in the primary winding to the number of turns in the secondary winding
Lockout is a safety procedure used to ensure that machinery or equipment is properly shut off and cannot be restarted until maintenance or servicing is completed.
Lockout involves isolating energy sources to prevent accidental startup.
Lockout devices like padlocks and tags are used to physically lock equipment.
Lockout procedures must be followed to prevent accidents and injuries.
Examples of lockout include locking out e...
IP65 for panel refers to the level of protection against dust and water ingress.
IP65 rating means the panel is dust tight and protected against water jets from any direction.
The first digit '6' indicates the level of protection against solid objects like dust.
The second digit '5' indicates the level of protection against water ingress.
Commonly used in outdoor or industrial applications where the panel may be exposed to...
TCS and Master Trip Relay are protective devices used in electrical systems to prevent damage during faults.
TCS stands for Time Current Characteristic Relay, which operates based on the relationship between time and current to trip the circuit breaker during faults.
Master Trip Relay is a relay that receives signals from various protective relays and initiates a trip signal to disconnect the circuit in case of a fault.
B...
LSC 2A and LSC 2B are standards for lighting in commercial and industrial buildings.
LSC 2A and LSC 2B are part of the Lighting Power Density (LPD) requirements in building codes.
LSC 2A is for commercial buildings while LSC 2B is for industrial buildings.
They specify the maximum allowable power consumption for lighting per unit area in a building.
For example, LSC 2A may require a maximum LPD of 0.9 watts per square foot
REF protection is used to prevent damage to equipment from electrical faults. High impedance protection is used for sensitive equipment, while low impedance protection is used for power systems.
REF protection is used to detect ground faults and prevent damage to equipment.
High impedance protection is used for sensitive equipment that requires high accuracy and low fault currents.
Low impedance protection is used for pow...
ANSI codes are used to identify various types of protection devices in electrical systems.
ANSI code 50/51 is for instantaneous overcurrent protection
ANSI code 67 is for directional power protection
ANSI code 87 is for differential protection
ANSI code 59 is for overvoltage protection
I have a strong skill set in programming languages such as Java, Python, and C++, with over 5 years of experience in each.
Java - 7 years of experience, used in developing enterprise applications
Python - 5 years of experience, used for data analysis and automation scripts
C++ - 6 years of experience, used in embedded systems programming
The project is a web-based application for managing inventory and sales for a retail company.
Developed using Java Spring framework
Utilizes MySQL database for storing data
Includes features such as user authentication, product management, and sales tracking
Symbols used in GD&T include position, concentricity, perpendicularity, etc.
Position symbol: Indicates the allowable deviation from the true position of a feature
Concentricity symbol: Specifies the allowable deviation between the axis of two features
Perpendicularity symbol: Indicates the allowable deviation from a 90-degree angle between two features
My project involved designing a new type of gearbox for improved efficiency and durability.
Researched existing gearbox designs and identified areas for improvement
Utilized CAD software to create detailed 3D models of the new gearbox
Conducted simulations to test the performance of the new design
Collaborated with a team of engineers to refine the design based on feedback
Produced a final prototype for testing and validati
I applied via Company Website and was interviewed in Nov 2024. There was 1 interview round.
A stack is a Last In First Out (LIFO) data structure, while a queue is a First In First Out (FIFO) data structure.
Stack: LIFO - Last In First Out. Example: browser history where the last page visited is the first to be accessed.
Queue: FIFO - First In First Out. Example: a line at a grocery store where the first person in line is the first to be served.
Function to find two numbers in array that add up to target. Optimize solution.
Use a hash map to store each number and its index as you iterate through the array.
For each number, check if the difference between the target and the number exists in the hash map.
Return the indices of the two numbers that add up to the target.
ABB interview questions for popular designations
I applied via Monster and was interviewed in Dec 2024. There was 1 interview round.
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I applied via Job Portal and was interviewed in Oct 2024. There was 1 interview round.
Experienced operations manager with a background in supply chain management and team leadership.
Over 5 years of experience in operations management
Strong background in supply chain management
Proven track record of leading and developing high-performing teams
Skilled in process improvement and optimization
Excellent communication and problem-solving skills
Budget planning involves forecasting expenses, setting financial goals, and allocating resources efficiently.
Start by analyzing past financial data and identifying trends
Forecast future expenses and revenue based on market conditions and company goals
Set financial goals and allocate resources accordingly
Monitor budget performance regularly and make adjustments as needed
Collaborate with other departments to ensure align...
Currently overseeing daily operations, managing staff, optimizing processes, and ensuring efficiency.
Managing a team of employees and delegating tasks
Developing and implementing operational policies and procedures
Monitoring and analyzing operational performance metrics
Identifying areas for improvement and implementing solutions
Ensuring compliance with regulations and standards
I handle my team by setting clear expectations, providing support and resources, fostering open communication, and recognizing achievements.
Set clear expectations for team members
Provide necessary support and resources for team to succeed
Foster open communication and encourage feedback
Recognize and reward team achievements
Address any conflicts or issues promptly and fairly
I recently overcame the challenge of streamlining our inventory management system to improve efficiency.
Identified inefficiencies in current inventory management processes
Implemented new software to track inventory in real-time
Trained staff on how to use the new system effectively
The main method is static in Java because it needs to be called by the JVM without creating an instance of the class.
Static methods can be called without creating an instance of the class.
The main method is the entry point of a Java program, so it needs to be accessible without creating objects.
Having the main method as static ensures that it can be called by the JVM before any objects are created.
Overloading construction is possible in programming by defining multiple functions with the same name but different parameters.
In programming, overloading construction refers to defining multiple functions with the same name but different parameters.
The compiler determines which function to call based on the number and types of arguments passed to it.
For example, you can have multiple functions named 'calculate' that a...
I applied via LinkedIn and was interviewed in Dec 2024. There were 2 interview rounds.
Good experience in interview
I applied via Company Website and was interviewed in May 2024. There was 1 interview round.
Switchgears consist of various components like circuit breakers, fuses, relays, etc. used to control, protect, and isolate electrical equipment.
Circuit breakers: Used to interrupt the flow of electricity in case of a fault.
Fuses: Protect electrical circuits by breaking the circuit when there is an overload.
Relays: Control the flow of electricity based on signals from sensors or switches.
Disconnect switches: Used to iso...
Contacts may not be moving in switch gears due to issues such as faulty wiring, mechanical obstructions, or lack of power.
Check for faulty wiring connections
Inspect for mechanical obstructions preventing movement
Ensure there is sufficient power supply to the switch gears
A purchase order is a document issued by a buyer to a seller, indicating types, quantities, and agreed prices for products or services.
Purchase orders are used in business transactions to ensure both parties are in agreement on the terms of the sale.
They typically include details such as item descriptions, quantities, prices, payment terms, and delivery dates.
Purchase orders help track and manage purchases, as well as ...
I would prioritize key deliverables, negotiate with vendors for discounts, and streamline processes to maintain quality within the tight budget.
Prioritize key deliverables to ensure essential aspects are not compromised
Negotiate with vendors for discounts or explore alternative cost-effective options
Streamline processes to eliminate any unnecessary expenses and optimize resources
Enclosure refers to a structure that surrounds or contains something, providing protection or confinement.
Enclosures can be used in various industries such as construction, electronics, and manufacturing.
Examples of enclosures include computer cases, electrical boxes, and animal habitats.
Enclosures are designed to protect the contents from external elements and provide safety and security.
Enclosures can be made of diff...
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Schneider Electric
Emerson Electric Co.
Honeywell International India