L&T Technology Services Design Engineer Interview Questions, Process, and Tips

Q1. Regarding Asking my previous Experience!
Add your answer

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
Answered by AI
Add your answer
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
Answered by AI
Add your answer
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
Answered by AI
Add your answer
Q4. Which method are used for making biw mean manufacturing process?
Ans. 
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
Answered by AI
Add your answer
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,
Answered by AI
Add your answer
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
Answered by AI
Add your answer
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
Answered by AI
Add your answer
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
Answered by AI
Add your answer

Question regarding cb sizing ,plc and software related quesyions

Q1. Salary expectations?
Add your answer
Q2. Job location, mumbai or pune
Add your answer

Q1. What is Aerofoil?..Herarchy of Aveva?.
Ans. 
An aerofoil is a shape designed to produce a desired aerodynamic force when air flows over it. Aveva is a software company specializing in engineering design solutions.
• Aerofoil is a shape used in aircraft wings to generate lift by creating a pressure difference between the upper and lower surfaces.

• Aveva is a software company that offers engineering design solutions for various industries such as oil and gas, marine, an...read more
Answered by AI
Add your answer
Q2. Whatever questions ans u give...they might go deep in that topic.. so be confident about it before u start
Add your answer
Q3. What is Distillation and Cofermentation tower?
Ans. 
Distillation and cofermentation towers are used in chemical engineering to separate and purify components of a mixture.
• Distillation tower is used to separate components of a liquid mixture based on their boiling points.

• Cofermentation tower is used in bioengineering to simultaneously ferment multiple substrates.

• Both towers play a crucial role in various industries such as petrochemical, pharmaceutical, and food processi...read more
Answered by AI
Add your answer
Q4. Boilers pressure and tempreture ranges.
Add your answer

Q1. Previes salary, Behavieral based questions.
Add your answer

Q1. Types of Plastic?
Ans. 
There are various types of plastics, each with unique properties and uses.
• Common types include PET, PVC, HDPE, LDPE, PP, PS, and ABS

• Plastics can be categorized as thermosetting or thermoplastic

• Each type of plastic has different characteristics such as flexibility, durability, and heat resistance
Answered by AI
Add your answer
Q2. Plastic categories?
Add your answer
Q3. Diff b/w hot runner & cold runner?
Add your answer
Q4. Selection of material?
Ans. 
Selection of material is based on factors like mechanical properties, cost, availability, and environmental impact.
• Consider mechanical properties such as strength, stiffness, and toughness

• Evaluate cost and availability of materials

• Assess environmental impact and sustainability

• Examples: steel for high strength applications, aluminum for lightweight designs, and plastics for cost-effective solutions
Answered by AI
Add your answer

Q1. Describe Injection molding
Ans. 
Injection molding is a manufacturing process for producing parts by injecting material into a mold.
• Material is heated and injected into a mold cavity

• The material cools and solidifies, taking the shape of the mold

• Commonly used for producing plastic parts in mass production

• Used in various industries such as automotive, electronics, and consumer goods
Answered by AI
Add your answer
Q2. Molding method?
Ans. 
Various molding methods are used in design engineering to create products with different materials and shapes.
• Injection molding: commonly used for mass production of plastic parts

• Blow molding: used for hollow objects like bottles

• Compression molding: suitable for materials like rubber and thermosetting plastics

• Rotational molding: used for large, hollow products like tanks and playground equipment
Answered by AI
Add your answer