Lumax Auto Technologies Ltd Senior Design & Development Engineer Interview Questions and Answers

Tolerance refers to the allowable deviation from a specified dimension in engineering design.

• Tolerance is the acceptable range of variation in a dimension or property of a part or product.

• Basic tolerance is the general tolerance that is applied to all dimensions unless otherwise specified.

• Tolerance helps ensure that parts fit together properly and function as intended.

• Examples of tolerance include +/- 0.1mm for a machi...read more

Product design involves a series of steps to create a functional and aesthetically pleasing product.

• Understand the problem or need that the product will address

• Research existing products and technologies

• Brainstorm ideas and create sketches or prototypes

• Iterate on designs based on feedback and testing

• Finalize design for production

Identifying root cause of new products involves thorough analysis and investigation.

• Conduct thorough testing and analysis of the product

• Collect feedback from users and stakeholders

• Investigate any reported issues or failures

• Use tools like root cause analysis (RCA) to identify underlying issues

• Consider factors such as design, materials, manufacturing process, and user interaction

• Collaborate with cross-functional teams to

The procedure for new product development involves idea generation, concept development, design and testing, and commercialization.

• Idea generation: Brainstorming sessions, market research, customer feedback

• Concept development: Creating prototypes, feasibility studies

• Design and testing: Iterative design process, testing for functionality and durability

• Commercialization: Marketing strategies, production planning, launch

To solve manufacturing problems and correlate design, it is important to analyze root causes, communicate effectively with cross-functional teams, and iterate on design improvements.

• Identify the root cause of the manufacturing problem by analyzing data and conducting tests.

• Communicate effectively with cross-functional teams including manufacturing, quality, and design engineers to understand the impact of the problem o...read more

Types of bearings include ball bearings, roller bearings, and plain bearings. Gears can be spur, helical, bevel, or worm gears. Materials commonly used are steel, brass, and plastic.

• Types of bearings: ball bearings, roller bearings, plain bearings

• Types of gears: spur gears, helical gears, bevel gears, worm gears

• Materials used: steel, brass, plastic