Cummins Product Design Engineer Interview Questions, Process, and Tips

Designed a part for a handheld vacuum cleaner

• Designed a detachable dustbin for easy cleaning

• Considered ergonomics for comfortable grip and ease of use

• Collaborated with manufacturing and quality control departments

• Used CAD software to create 3D models and prototypes

• Tested the part for durability and functionality

• Made adjustments based on feedback from testing

• Ensured the part met safety and regulatory standards

Design verification and validation methods

• Design verification ensures that the design meets the specified requirements and standards

• Design validation ensures that the design meets the user's needs and intended use

• DFMEA (Design Failure Mode and Effects Analysis) is used to identify and mitigate potential failure modes in the design

• iDFMEA (Integrated Design Failure Mode and Effects Analysis) includes the supply chain and...read more

Thermal considerations are crucial in product design to ensure optimal performance and prevent damage.

• Consider the heat generated by the product and how it will dissipate

• Choose appropriate materials with good thermal conductivity

• Design for proper ventilation and airflow

• Perform thermal simulations and testing to validate design

• Consider the operating environment and temperature range

• Implement thermal management solutions

Bolted joint analysis involves evaluating the strength and reliability of a joint made by bolts.

• It includes calculating the preload and tightening torque required for the bolts.

• Factors like material properties, surface finish, and lubrication affect the joint's performance.

• Finite element analysis (FEA) can be used to simulate the joint's behavior under different loads.

• Testing the joint under actual conditions is necess

I would prioritize the tasks and delegate them to a team to ensure timely completion.

• Identify the critical tasks and prioritize them

• Delegate tasks to a team with clear instructions

• Monitor progress and provide support as needed

• Ensure effective communication within the team

• Consider outsourcing non-critical tasks if necessary

MCM modelling stands for Multi-Chip Module modelling, which is a technique used in electronics design.

• MCM modelling involves designing and simulating electronic circuits that use multiple chips on a single module.

• It helps in optimizing the layout and interconnects between the chips to improve performance and reduce size.

• MCM modelling is commonly used in high-performance computing, telecommunications, and aerospace indu...read more

GD&T stands for Geometric Dimensioning and Tolerancing. It is a system used to define and communicate engineering tolerances.

• GD&T is a language used to communicate design intent and engineering tolerances.

• It uses symbols and annotations to define the allowable variation in form, orientation, and location of features on a part.

• There are 14 types of tolerances in GD&T, including straightness, flatness, circularity, cylin...read more

Run out is the amount of deviation from the ideal axis of rotation, while total run out is the maximum amount of deviation.

• Run out is a measure of how much a rotating object deviates from its ideal axis of rotation.

• Total run out is the maximum amount of deviation from the ideal axis of rotation.

• Run out is usually measured in microns or thousandths of an inch.

• Total run out is important in manufacturing to ensure that pa...read more

Maximum material condition is a GD&T symbol that specifies the largest possible size of a feature within its tolerance zone.

• MMC is used to ensure that a part will always fit with its mating part, even if both are at their maximum material size.

• It is denoted by the symbol 'M' in GD&T.

• MMC is important in manufacturing processes where parts need to fit together precisely, such as in aerospace or automotive industries.

• It i...read more

Problem solving tools are techniques used to identify, analyze and solve problems. There are various types of problem solving tools.

• Brainstorming

• Fishbone diagram

• Pareto chart

• 5 Whys

• Flowchart

• SWOT analysis

• PDCA cycle

• DMAIC

• TRIZ

• Design thinking

Why Why Analysis is a problem-solving technique used to identify the root cause of a problem.

• It involves asking 'why' multiple times to get to the root cause of a problem.

• It helps in identifying the underlying issues that contribute to a problem.

• It is often used in conjunction with the 8D problem-solving process.

• 8D is a structured problem-solving methodology used to identify, correct, and prevent problems.

• It involves e...read more

Yes, I have led technical review meetings such as DFMEA in my previous roles.

• I have experience leading technical review meetings related to DFMEA and other technical aspects.

• I am comfortable presenting technical information to both technical and non-technical stakeholders.

• I have facilitated discussions and collaborated with cross-functional teams to identify and address potential technical issues.

• For example, in my pre...read more