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Lam Research Mechanical Engineer Interview Questions and Answers
Lam Research Mechanical Engineer Interview Experiences
1 interview found
I applied via Campus Placement and was interviewed in Sep 2021. There were 3 interview rounds.
Interview Questionnaire
3 Questions
- Q1. What is prandtl number?
- Ans.
Prandtl number is a dimensionless number used in fluid mechanics to describe the ratio of momentum diffusivity to thermal diffusivity.
It is named after the German physicist Ludwig Prandtl.
It is used to predict fluid flow behavior and heat transfer in different materials.
It is calculated as the ratio of kinematic viscosity to thermal diffusivity.
It is important in the study of boundary layers, turbulence, and convection...
- Q2. Why are manholes circular?
- Ans.
Manholes are circular because they cannot fall through their own opening.
Circular manholes cannot fall through their own opening, unlike square or rectangular ones.
Circular shape distributes weight evenly, making it easier to move and handle.
Circular shape also reduces the risk of injury from sharp corners.
Circular manholes are easier to manufacture and install.
Circular shape allows for easier access from any angle.
Cir...
- Q3. Explain bernoulli's equation
- Ans.
Bernoulli's equation relates the pressure, velocity, and height of a fluid in motion.
Bernoulli's equation is based on the principle of conservation of energy.
It is commonly used in fluid mechanics to analyze the flow of fluids through pipes and channels.
The equation states that as the velocity of a fluid increases, its pressure decreases, and vice versa.
It can be expressed as P + 1/2ρv^2 + ρgh = constant, where P is pr...
Interview Preparation Tips
Mechanical Engineer Jobs at Lam Research
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Mechanical Engineer Interview Questions & Answers
Applied Materials
Kartik Akojwar
posted on 24 May 2017
I was interviewed in Dec 2016.
Interview Questionnaire
15 Questions
- Q1. What was KiteTech(a project undertaken in school) all about?
- Ans.
KiteTech was a school project focused on designing and building a high-performance kite for recreational use.
Researched different kite designs and materials for optimal performance
Utilized CAD software to create a prototype of the kite
Tested the kite in various wind conditions to assess its performance
Collaborated with team members to improve the design and functionality
- Q2. Explain the working of a water rocket?
- Ans.
A water rocket works by pressurizing water and air inside a bottle, creating thrust that propels the rocket upwards.
Water and air are added to a plastic bottle, with the air pressurized using a pump or compressed air source.
When the bottle is released, the pressurized air forces the water out of the nozzle, creating a reaction force that propels the rocket upwards.
The height the rocket reaches depends on factors such a...
- Q3. What is MR Braking?
- Ans.
MR Braking stands for Magnetic Resistance Braking. It is a type of braking system used in trains and other vehicles.
MR Braking uses magnetic fields to slow down or stop a vehicle.
It is commonly used in trains as it provides a smooth and efficient braking system.
The braking force is generated by the resistance between the magnetic field and the conductive material on the train's wheels.
MR Braking is also used in roller ...
- Q4. What are the basic parts of an aeroplane and there working functions?
- Ans.
An aeroplane consists of several basic parts that work together to enable flight.
The wings generate lift and provide stability
The fuselage houses the cockpit, passengers, and cargo
The engines provide thrust to move the plane forward
The tail section includes the horizontal stabilizer and vertical fin for directional control
The landing gear allows the plane to take off and land
The avionics system includes instruments and
- Q5. What software's do you know and what are there working algorithms?
- Ans.
I know software's like AutoCAD, SolidWorks, ANSYS, MATLAB, and their working algorithms.
AutoCAD - used for 2D and 3D design and drafting
SolidWorks - used for 3D modeling and simulation
ANSYS - used for finite element analysis and computational fluid dynamics
MATLAB - used for numerical computing and data analysis
- Q6. Tell me about yourself?
- Ans.
I am a dedicated Mechanical Engineer with a passion for problem-solving and innovation.
Graduated with a degree in Mechanical Engineering from XYZ University
Experienced in CAD software such as SolidWorks and AutoCAD
Worked on projects involving thermodynamics and fluid mechanics
Strong analytical skills and attention to detail
Certified in project management
- Q7. Why applied materials and not the other companies which have visited your campus since the inception of your academic year(as AMAT visited in December)?
- Ans.
Applied Materials is a leading company in the field of semiconductor equipment manufacturing, offering cutting-edge technology and global opportunities.
Applied Materials is a global leader in semiconductor equipment manufacturing
They offer cutting-edge technology and innovation in their products
The company provides opportunities for global exposure and career growth
AMAT's reputation for excellence and industry leadersh...
- Q8. What is it that you look for in the job you want to take up?
- Ans.
I look for a challenging and dynamic work environment where I can apply my technical skills and continue to learn and grow.
Challenging and dynamic work environment
Opportunities to apply technical skills
Room for learning and growth
- Q9. Have you given GATE or GRE?
- Ans.
Yes, I have given GATE exam for admission to postgraduate programs in engineering.
Yes, I have given GATE exam for admission to postgraduate programs in engineering.
I scored well in GATE exam to enhance my chances of getting into a reputed engineering institute.
GATE exam helped me showcase my technical knowledge and skills in the field of mechanical engineering.
- Q10. With such good scores, how would you assure if selected to jointed company?
- Ans.
I would assure my selection by showcasing my strong work ethic, problem-solving skills, and passion for engineering.
I would highlight my relevant experience and projects during the interview.
I would provide references from previous employers or professors to vouch for my skills and work ethic.
I would express my enthusiasm for the company and the role, demonstrating my commitment to contributing positively to the team.
I...
- Q11. What is your story so far?
- Ans.
I am a dedicated Mechanical Engineer with 5 years of experience in designing and implementing mechanical systems.
Graduated with a Bachelor's degree in Mechanical Engineering from XYZ University
Worked as a Mechanical Engineer at ABC Company for 3 years
Designed and implemented a new cooling system for industrial machinery, resulting in 20% increase in efficiency
Proficient in CAD software and project management tools
- Q12. What are the two values you value the most?
- Ans.
Integrity and innovation are the two values I value the most.
Integrity: Upholding honesty, ethics, and moral principles in all aspects of work.
Innovation: Constantly seeking new ideas and solutions to improve processes and products.
Example: Ensuring accurate reporting of data and findings, and actively participating in brainstorming sessions for new design concepts.
- Q13. Give examples quoting the significance of the values you value?
- Ans.
Values such as integrity, teamwork, and innovation are crucial in engineering for successful project completion and professional growth.
Integrity is important in engineering to ensure honesty and ethical behavior in all aspects of work.
Teamwork is essential for collaboration and effective communication among team members to achieve project goals.
Innovation drives creativity and problem-solving skills, leading to the de...
- Q14. What is your vision in your life?
- Ans.
My vision in life is to use my skills as a Mechanical Engineer to contribute to innovative projects that improve society and make a positive impact on the world.
To work on cutting-edge technologies and research in the field of mechanical engineering
To collaborate with diverse teams to solve complex problems and create sustainable solutions
To mentor and inspire the next generation of engineers through education and outr
- Q15. Give 20 applications of a stapler for any other use.
- Ans.
20 alternative uses of a stapler
As a makeshift hole puncher
To hold together a broken necklace chain
To create a makeshift zipper pull
To create a makeshift lock for a door
To create a makeshift weight for a fishing line
To create a makeshift needle for sewing
To create a makeshift screwdriver
To create a makeshift zipper repair tool
To create a makeshift paper clip
To create a makeshift zipper stopper
To create a makeshift zipp...
Interview Preparation Tips
Experience: The online test was held at the campus itself. Comprising of 60 odd questions which included 15 aptitude questions and 45 technical questions, the test was of standard difficulty level. The technical questions were from almost all the basic subjects of mechanical, like, strength of materials, fluid mechanics, dynamics of machines, machine design, turbo machinery, etc.
Tips: Aptitude is surely a scoring area, so strive to get all the 15 questions right. Also the technical questions are basic ones so with basic knowledge of the basic subjects these are also not that difficult to answer.
Duration: 1 hour
Total Questions: 60
Round: Technical Interview
Experience: The technical interview was completely a resume based interview. The questions were all based on the technicalities of the achievements, projects and papers undertaken which were mentioned in the resume.
Tips: Keep your resume strong and it should be completely honest.
Round: HR Interview
Experience: The interview which lasted for around an hour was nothing less than a formal talk. The interviewer only sought for the honesty behind all my answers, spontaneity and the thought process I adopt for doing work.
Tips: The HR completely seeks for your intent to join the company and your interest in the work they do. The interview must be completely honest and should be given unprepared.
Skills: Technical, Communication, Teamwork, Research Interests
College Name: Maulana Azad National Institute of Technology
Skills evaluated in this interview
(1 Question)
- Q1. Tell me about you previous internship experience
- Ans.
I completed a 6-month internship at ABC Company where I worked on designing and testing mechanical components for automotive applications.
Designed and analyzed mechanical components using CAD software
Conducted tests and simulations to evaluate performance and durability
Collaborated with cross-functional teams to optimize designs and troubleshoot issues
Interview Preparation Tips
Selected
I applied via Approached by Company and was interviewed before Dec 2022. There were 4 interview rounds.
Asked about cement plant operations & troubleshooting problems in your career.
(1 Question)
- Q1. Cement plant operation related
(1 Question)
- Q1. Personal introduction & salary negotiation
Vaibhav Gupta
I applied via Company Website and was interviewed before May 2023. There was 1 interview round.
Questions related to digital and Analog electronics were asked
Selected
I applied via Approached by Company and was interviewed in Feb 2024. There were 3 interview rounds.
(2 Questions)
- Q1. What were your previous projects that you have worked on
- Ans.
I have worked on projects related to developing software for autonomous vehicles and implementing machine learning algorithms for predictive maintenance.
Developed software for autonomous vehicles to improve navigation and obstacle avoidance
Implemented machine learning algorithms for predictive maintenance in manufacturing plants
Collaborated with cross-functional teams to integrate new technologies into existing systems
- Q2. What all your technical skills and stacks that you have previously used for your projects
- Ans.
I have experience with Java, Python, SQL, AWS, Docker, and Kubernetes in my previous projects.
Java
Python
SQL
AWS
Docker
Kubernetes
(2 Questions)
- Q1. What is docker and why do we use it for containerising applications
- Ans.
Docker is a platform for developing, shipping, and running applications in containers.
Docker allows applications to be isolated in containers, making them portable and easy to deploy across different environments.
Containers share the host OS kernel but run as isolated processes, providing lightweight and efficient virtualization.
Docker simplifies the process of packaging applications and their dependencies, ensuring co...
- Q2. What is database normalisation and how your project benefited from it in the past
- Ans.
Database normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
Database normalization involves breaking down data into smaller, more manageable tables and defining relationships between them.
It helps in reducing data redundancy, improving data integrity, and making the database more efficient.
For example, in a project I worked on, we normalized the database by spl...
(2 Questions)
- Q1. What has been your experience with challenging projects
- Ans.
I have extensive experience working on challenging projects in various industries.
Led a team in developing a complex software solution for a major client
Managed a project with tight deadlines and limited resources
Implemented innovative solutions to overcome technical obstacles
Collaborated with cross-functional teams to deliver successful outcomes
- Q2. How would you approach learning about new domain and technologies with a different background
- Ans.
I would approach learning about new domain and technologies with a different background by leveraging my existing skills, seeking out resources, and collaborating with experts in the field.
Identify key concepts and terminology in the new domain
Seek out online courses, tutorials, and books to gain foundational knowledge
Collaborate with colleagues or mentors who have experience in the new domain
Experiment with hands-on p...
Interview Preparation Tips
- IT Projects
- Python
- Reactjs
- Django
- Databases
Skills evaluated in this interview
Selected
I applied via Referral and was interviewed before Jul 2022. There were 3 interview rounds.
(1 Question)
- Q1. Questions about Thermal basics. JD also about melting point temperatures
(1 Question)
- Q1. Salary negotiations and joining date details
Selected
I applied via Company Website and was interviewed before Jan 2023. There were 2 interview rounds.
Simple Python Coding questions.
(1 Question)
- Q1. Logical questions on Memory allocation.
Interview Preparation Tips
Mechanical Engineer Interview Questions & Answers
Applied Materials
deepak verma
posted on 5 Aug 2022
I applied via Campus Placement and was interviewed before Aug 2021. There were 4 interview rounds.
Basic level reasoning and simple math
(4 Questions)
- Q1. Hoop stress Heat exchanger depth Critical radius of insulation And some basic som questions
- Q2. 3-d printer discussion
- Q3. Major project discussion
- Q4. Defination of stress
- Ans.
Stress is the force per unit area that a material experiences when subjected to an external load.
Stress is a measure of the internal forces within a material.
It is calculated as force per unit area.
Stress can cause deformation or failure of a material.
There are different types of stress, such as tensile, compressive, and shear stress.
Examples of stress include the weight of a book on a table, the force applied to a bri...
(8 Questions)
- Q1. Situation based questions
- Q2. Stress strain Curve of aluminium
- Ans.
Aluminium stress strain curve shows its elastic and plastic deformation behavior under stress.
Aluminium has a linear elastic region up to a certain point, beyond which it undergoes plastic deformation.
The yield strength of aluminium is around 40-90 MPa.
Ultimate tensile strength of aluminium is around 90-200 MPa.
Aluminium has a low modulus of elasticity compared to steel.
The stress strain curve of aluminium can be affec...
- Q3. Design a chair for a class
- Ans.
Designed a chair for a class that is comfortable, durable, and ergonomic.
Consider the height of the desk and the average height of the students
Use materials that are sturdy and easy to clean
Incorporate lumbar support and adjustable features for comfort
Add armrests for additional support
Ensure the chair has a non-slip base for safety
- Q4. What applied do and how your study make change into this
- Q5. Basic laws of thermodynamics
- Ans.
Basic laws of thermodynamics
First law: Energy cannot be created or destroyed, only transferred or converted
Second law: Entropy of a closed system always increases over time
Third law: Absolute zero cannot be reached
Examples: car engine, refrigerator, power plant
- Q6. How we cool a pipe in a chamber without using coolent
- Ans.
Cooling a pipe in a chamber without coolant
Use natural convection by placing the pipe vertically and allowing air to circulate around it
Use a heat sink to absorb the heat from the pipe
Use a thermoelectric cooler to create a temperature gradient and cool the pipe
Use a phase change material to absorb the heat from the pipe
Use a heat exchanger to transfer the heat from the pipe to a cooler fluid or gas
Use a radiation shie
- Q7. What is micromaterials
- Ans.
Micromaterials refer to materials with microscale dimensions, typically less than 100 micrometers.
Micromaterials have unique properties due to their small size, such as increased surface area to volume ratio and altered mechanical, electrical, and optical properties.
Examples of micromaterials include microelectromechanical systems (MEMS), microfluidic devices, and microscale sensors.
Research in micromaterials has appli...
- Q8. What we need to do if pressure valve fail in boiler
- Ans.
If pressure valve fails in boiler, shut down the boiler immediately and isolate it from the system.
Shut down the boiler immediately to prevent any further damage.
Isolate the boiler from the system to prevent any pressure build-up.
Inspect the pressure valve to determine the cause of failure.
Replace the pressure valve with a new one.
Test the new pressure valve to ensure it is functioning properly before restarting the bo
(7 Questions)
- Q1. How you contribute with your knowledge in your society
- Q2. How you explore your college
- Q3. Condition where you show your team leader skills
- Q4. How you took you failmly member up in different field
- Q5. What is your extra skills except college study
- Q6. How you deal with a clients regarding which you don't know much
- Ans.
I research and gather information to understand the client's needs and requirements.
Ask the client questions to gather more information
Research and study the client's industry and field
Consult with colleagues or experts in the field
Provide regular updates to the client on progress and findings
Be honest about limitations and seek help when needed
- Q7. Any feedback or queries
Interview Preparation Tips
- Strength of materials
- Thermodynamics
- Manufacturing
- Design
I applied via LinkedIn and was interviewed in May 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Tell me about your experience
- Q2. High level questions on resume
(2 Questions)
- Q1. Mechanical testing related
- Q2. Deep dive in technical- FMEA, DVP&R
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