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I applied via LinkedIn and was interviewed in Mar 2022. There were 3 interview rounds.
We are using IEC 61439 standard for designing the panels and selecting switchgear.
IEC 61439 is the international standard for low-voltage switchgear and controlgear assemblies
It provides guidelines for the design, manufacture, and testing of switchgear and controlgear assemblies
The standard ensures safety, reliability, and performance of the switchgear and controlgear assemblies
IEC 61439 is widely recognized and accept...
Explanation of design calculations for selecting busbar size, switchgear, type-2 coordination, and discrimination study.
Busbar size selection based on current carrying capacity and voltage drop
Switchgear selection based on fault level and load current
Type-2 coordination ensures proper operation of protective devices during a fault
Discrimination study ensures that only the faulty section of the system is isolated during...
Control logic of electrical panel involves designing and implementing the logic for controlling various electrical components.
Designing the logic for controlling electrical components such as motors, pumps, and valves
Implementing the control logic using programmable logic controllers (PLCs) or other control systems
Testing and troubleshooting the control logic to ensure proper operation
Documenting the control logic for ...
VFDs control the speed of AC motors by varying the frequency and voltage of the power supplied to the motor.
VFD stands for Variable Frequency Drive
Basic components include rectifier, DC bus, inverter, and control system
Parameters include frequency, voltage, current, and acceleration/deceleration time
VFDs can improve energy efficiency and reduce wear and tear on motors
Example: VFDs are commonly used in HVAC systems to c
A soft starter panel is an electrical device used to control the starting current of an electric motor.
It reduces the mechanical stress on the motor during startup.
It gradually increases the voltage supplied to the motor.
It can be used to control the speed of the motor.
It is commonly used in applications where a large amount of power is required to start the motor.
Examples include pumps, compressors, and conveyor belts
We use various software depending on the type of electrical component being tested.
We use simulation software like LTSpice and PSpice for circuit analysis.
For testing microcontrollers, we use software like Keil and MPLAB.
For power system analysis, we use software like ETAP and PowerWorld.
We also use software like LabVIEW and MATLAB for data acquisition and analysis.
2 wire and 4 wire communication are methods used for transmitting data or signals between devices.
2 wire communication uses a single pair of wires for both transmitting and receiving data.
4 wire communication uses two pairs of wires, one for transmitting and one for receiving data.
2 wire communication is commonly used in simple applications like telephone lines.
4 wire communication is used in more complex applications ...
I applied via Campus Placement and was interviewed in Dec 2024. There were 2 interview rounds.
Basics of mathematical ability and verbal ability
I have worked on various data analysis projects involving market research, customer segmentation, and predictive modeling.
Market research project involved analyzing customer demographics and preferences to identify target markets.
Customer segmentation project focused on dividing customers into distinct groups based on behavior and characteristics.
Predictive modeling project used historical data to forecast future trend...
Data analytics is the process of analyzing raw data to draw conclusions and make informed decisions.
Data analytics involves collecting, cleaning, and transforming data into insights.
It uses statistical analysis, machine learning, and data visualization techniques.
Examples include analyzing sales data to identify trends, predicting customer behavior, and optimizing marketing campaigns.
I applied via LinkedIn and was interviewed in Nov 2024. There were 2 interview rounds.
The questions are easy as compare to other companies. The round was online test
L&T Technology Services interview questions for popular designations
I applied via Approached by Company and was interviewed in Nov 2024. There were 2 interview rounds.
Get interview-ready with Top L&T Technology Services Interview Questions
I applied via Approached by Company and was interviewed in Aug 2024. There were 2 interview rounds.
Side member and cross member are structural components in the Body in White (BIW) of a vehicle, providing support and rigidity.
Side members are longitudinal structural components that run along the sides of the vehicle, providing support and connecting various components.
Cross members are structural components that run across the width of the vehicle, connecting the side members and providing additional rigidity.
These ...
Annotations, PMI stands for Product Manufacturing Information, which includes dimensions, tolerances, materials, and other specifications on a technical drawing.
PMI is used to communicate important information about a product's design and manufacturing requirements.
Annotations are typically added to CAD drawings to provide clarity and guidance to manufacturers.
Examples of PMI include geometric dimensioning and toleranc...
Beads and darts are decided based on design requirements, manufacturing constraints, and structural considerations in BIW members.
Consider design requirements such as stiffness, strength, and crashworthiness.
Take into account manufacturing constraints like tooling limitations and cost.
Evaluate structural considerations such as load distribution and stress concentrations.
Examples: Beads are often used to increase stiffn...
Various methods such as stamping, welding, and bonding are used for making BIW in manufacturing processes.
Stamping: involves pressing a sheet of metal into a die to create the desired shape
Welding: joining metal pieces together using heat or pressure
Bonding: using adhesives to attach metal components
Riveting: joining metal parts using rivets
Hydroforming: shaping metal using fluid pressure
Hydroforming uses fluid pressure to shape metal, while forming involves shaping metal using mechanical force.
Hydroforming uses fluid pressure to shape metal into complex shapes
Forming involves shaping metal using mechanical force such as bending, stretching, or compressing
Hydroforming is often used in automotive industry for creating lightweight and strong components
Forming can be done through processes like stamping,
Yes, GD&T (Geometric Dimensioning and Tolerancing) is used in engineering to communicate design specifications.
GD&T is a symbolic language used on engineering drawings to specify the allowable variations in form, size, and orientation of features.
It helps ensure that parts fit together correctly and function properly.
GD&T can improve quality, reduce costs, and lead to more efficient manufacturing processes.
Examples of ...
Benchmarking and master section are important in design for setting standards and improving performance.
Benchmarking involves comparing design processes, products, or performance against industry standards or competitors.
Master section refers to a standardized section of a design that serves as a reference point for consistency and quality.
Both benchmarking and master section help in setting benchmarks, identifying are...
LMC & MMC are GD&T concepts used to define the extreme sizes of a part. LMC is the smallest size while MMC is the largest size.
LMC (Least Material Condition) is the condition where a part has the least amount of material, ensuring the smallest size possible.
MMC (Max Material Condition) is the condition where a part has the most amount of material, ensuring the largest size possible.
GD&T uses LMC and MMC to establish th...
I applied via Approached by Company and was interviewed in Jul 2024. There were 3 interview rounds.
FMEA is a systematic method for identifying and prioritizing potential failure modes in a process or product.
FMEA involves identifying potential failure modes, their causes, and the effects of these failures.
It assigns a severity, occurrence, and detection rating to each failure mode to prioritize them for mitigation.
FMEA helps in proactively addressing potential issues to improve quality and reliability.
Example: In au...
SPC stands for Statistical Process Control. It is a method of quality control that uses statistical methods to monitor and control a process.
SPC helps in identifying and reducing variation in a process, leading to improved quality and consistency of products or services.
It involves collecting and analyzing data to understand the performance of a process over time.
If SPC is not implemented, there is a higher risk of pro...
Yes, I have experience in Supplier Quality Management.
Managed supplier audits and evaluations
Implemented supplier corrective action plans
Developed supplier quality agreements
Collaborated with suppliers to improve quality processes
Some quality standards include ISO 9001, Six Sigma, Lean Manufacturing, and Total Quality Management.
ISO 9001: a set of international standards for quality management systems
Six Sigma: a methodology aimed at improving processes by reducing defects
Lean Manufacturing: focuses on minimizing waste and maximizing value
Total Quality Management: an approach that involves all employees in continuous improvement
The 7 QC tools are a set of basic statistical tools used for quality control and improvement in manufacturing processes.
Check sheet: Used to collect and analyze data in a systematic manner.
Histogram: Represents data distribution visually to identify patterns and trends.
Pareto chart: Helps prioritize issues by showing the most significant factors affecting quality.
Cause-and-effect diagram (Ishikawa or fishbone diagram):...
Poka Yoke is a mistake-proofing technique used in manufacturing to prevent errors before they occur.
Poka Yoke involves designing processes or products in a way that prevents mistakes or defects.
Examples include using color coding for different parts to avoid mix-ups, or designing a shape that only fits in one way to prevent assembly errors.
The goal of Poka Yoke is to eliminate defects by preventing human errors.
8D analysis is a problem-solving method used to identify, correct, and prevent recurring problems in manufacturing or service industries.
8D stands for Eight Disciplines, which are a set of steps to address quality issues.
It involves forming a team, defining the problem, implementing temporary containment actions, identifying root causes, implementing permanent corrective actions, and preventing recurrence.
Examples of t...
PPAP stands for Production Part Approval Process. It is a standardized process in the automotive industry to ensure suppliers meet quality requirements.
PPAP is a set of guidelines developed by the Automotive Industry Action Group (AIAG) to establish a common understanding between suppliers and manufacturers.
It involves submitting documentation such as design records, process flow diagrams, control plans, and measuremen...
Not doing PPAP can lead to delays in production, quality issues, and potential customer dissatisfaction.
PPAP (Production Part Approval Process) is a necessary step in ensuring that all parts meet quality standards before production begins.
Not doing PPAP can result in delays in production as parts may need to be reworked or replaced if they do not meet requirements.
Skipping PPAP can lead to quality issues in the final p...
I expect to utilize my skills and experience to improve quality processes, drive continuous improvement, and contribute to the success of the organization.
Opportunity to lead quality improvement initiatives
Collaboration with cross-functional teams to ensure quality standards are met
Opportunities for professional growth and development
Contribution to the overall success of the organization
SPC stands for Statistical Process Control, a method used to monitor and control processes to ensure they are stable and in control.
SPC involves collecting and analyzing data to understand variation in a process
It helps identify when a process is out of control and in need of adjustment
Common tools used in SPC include control charts, histograms, and Pareto charts
MSA stands for Measurement System Analysis. It is a method used to assess the measurement system's capability to provide accurate and reliable data.
MSA helps in identifying sources of variation in measurement systems.
It includes studies like Gage R&R (Repeatability and Reproducibility) to evaluate measurement system precision.
MSA ensures that the measurement system is capable of providing accurate and reliable data...
Quality Engineers are responsible for ensuring products meet quality standards through testing and analysis.
Develop and implement quality control systems
Conduct tests and inspections to identify defects
Analyze data to improve processes and reduce errors
Collaborate with production teams to address quality issues
Document findings and recommend improvements
I manage my daily work management by prioritizing tasks, creating to-do lists, setting deadlines, and utilizing time management techniques.
Prioritize tasks based on urgency and importance
Create to-do lists to keep track of tasks
Set deadlines to ensure timely completion
Utilize time management techniques such as Pomodoro technique or Eisenhower matrix
Regularly review and adjust the plan as needed
I applied via Referral and was interviewed in Aug 2024. There were 3 interview rounds.
Ppk and Cpk are process capability indices used in Six Sigma to measure the ability of a process to produce output within specification limits.
Ppk and Cpk are statistical measurements that assess how well a process is performing in relation to its specification limits.
Ppk measures the potential capability of a process to produce output within specification limits, while Cpk measures the actual capability of a process t...
Different types of risks include financial, operational, strategic, compliance, and reputational risks.
Financial risk: related to the potential loss of financial resources, such as market risk, credit risk, and liquidity risk.
Operational risk: arises from internal processes, systems, or people, leading to errors, fraud, or disruptions.
Strategic risk: involves the impact of business decisions on the organization's long-...
Probability plot curves denote the distribution of data points compared to a theoretical distribution.
Probability plot curves help visualize how well a dataset fits a particular distribution.
The curves can indicate if the data is normally distributed or follows a different distribution.
Examples of probability plots include Q-Q plots and P-P plots.
I applied via Referral and was interviewed in Aug 2024. There was 1 interview round.
Yield keyword is used in Python to pause and resume a generator function.
Yield keyword is used to return a value from a generator function and pause its execution.
When the generator function is called again, it resumes from where it was paused.
Yield can be used in a loop to generate a sequence of values without storing them all in memory.
Example: def my_generator(): yield 1 yield 2 yield 3
Use variadic arguments in C++ to handle variable number of parameters in a function
Use variadic arguments in C++ to create a function that can accept any number of parameters
Example: void myFunction(int firstParam, ...)
Access the parameters using va_list and va_start macros
Example: va_list args; va_start(args, firstParam); int nextParam = va_arg(args, int);
End the argument list with va_end macro
SQL join query combines data from multiple tables based on a related column, and aggregate functions perform calculations on grouped data.
Use JOIN keyword to combine data from multiple tables based on a related column
Use aggregate functions like SUM, AVG, COUNT, etc. to perform calculations on grouped data
Example: SELECT orders.order_id, SUM(order_details.quantity) FROM orders JOIN order_details ON orders.order_id = or
I follow the Agile software management framework and am familiar with various Scrum terminologies.
Agile software management framework focuses on iterative development and collaboration.
Scrum is a specific Agile framework that includes roles like Scrum Master and Product Owner.
Some Scrum terminologies include Sprint, Daily Standup, Backlog, and User Stories.
I applied via Approached by Company and was interviewed in Aug 2024. There was 1 interview round.
P2P process stands for Procure-to-Pay process, which involves all steps from requisition to payment for goods or services.
P2P process starts with a purchase requisition being created by the requester.
The requisition is then approved by the appropriate authority.
A purchase order is generated and sent to the supplier.
Goods or services are received and inspected.
An invoice is received from the supplier.
The invoice is matc...
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