L&T Technology Services Interview Questions and Answers

The questions are easy as compare to other companies. The round was online test

Q1. The interview was easy and basically based on resume and projects done in the past
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Q2. The interview was easy and mostly of weakness and strength
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Q1. Regarding Asking my previous Experience!
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Q1. What is Side member & cross member in biw?
Ans. 
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 ...read more
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Q2. What is Annotations, PMI?
Ans. 
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...read more
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Q3. How to decide Bead & dart in biw member?
Ans. 
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...read more
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Q4. Which method are used for making biw mean manufacturing process?
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Q5. Diff b/w Hydroforming & forming?
Ans. 
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, ...read more
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Q6. GD& T use it?
Ans. 
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 ...read more
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Q7. Benchmarking & Master section... In design?
Ans. 
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...read more
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Q8. What is LMC & MMC (Least Material Condition & Max Material Condition) Explain with example?
Ans. 
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...read more
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Q1. What is the Failure Modes and Effects Analysis (FMEA) process? Write and explain on a piece of paper.
Ans. 
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...read more
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Q2. What is SPC ? What if we don’t do it ?
Ans. 
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...read more
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Q3. Do you have any experience in Supplier Quality Management?
Ans. 
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
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Q1. What are the different Quality standards that you are aware about ?
Ans. 
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
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Q2. What are 7 QC tools ?
Ans. 
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):...read more
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Q3. Based on your experience give me example of Poka Yoke
Ans. 
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.
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Q4. What is 8D analysis ?
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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...read more
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Q5. What is PPAP, and what is its significance?
Ans. 
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...read more
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Q6. What if I don’t do PPAP ?
Ans. 
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...read more
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Q7. What are your expectations from this job?
Ans. 
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
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Q1. Salary discussion and time frame to join.
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Q2. Personal details and past experience.
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Q1. What is Ppk and Cpk in Six Sigma??
Ans. 
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...read more
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Q2. What are the different types of risks??
Ans. 
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-...read more
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Q1. Explain ISO 13485 implementation in your current employer?
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Q2. What the curves on the Probability plot denotes?
Ans. 
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.
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Q1. Salary discussed
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Q2. Nothing more than the salary discussed
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Q1. What is the spc?
Ans. 
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
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Q2. What is msa?
Ans. 
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...read more
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Q1. What is your job role?
Ans. 
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
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Q2. How you manage your daily work management?
Ans. 
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
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Some aptitude questions with coding questions

Q1. Types of constructors
Ans. 
Types of constructors include default constructor, parameterized constructor, copy constructor, and conversion constructor.
• Default constructor: Constructor with no parameters.

• Parameterized constructor: Constructor with parameters to initialize object properties.

• Copy constructor: Constructor that creates a new object as a copy of an existing object.

• Conversion constructor: Constructor that converts one data type to anoth...read more
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Q2. About internet of things
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Q1. What is the usage of Yield keyword
Ans. 
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
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Q2. How will you n number of parmeters to a function where you n is variable number and you don't know the parameters that will be received
Ans. 
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
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Q3. SQL join query and use aggregate function in it
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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...read more
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Q4. Software management framework that I am following, and different scrum terminologies
Ans. 
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.
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