Question 1

If an idea survives the concept stage of product development,the actual design process begins by evaluating design alternatives and determining engineering specifications for all materials,components,and parts.

Accepted Answer

This statement is true. Once an idea is deemed viable during the concept stage of product development, the design process begins with the evaluation of design alternatives and the determination of engineering specifications for all materials, components, and parts.

Question 2

Narrow tolerances in product design tend to raise manufacturing costs and also increase the interchangeability of parts within the plant and in the field,product performance,durability,and appearance.

Accepted Answer

Narrow tolerances in product design require more precise manufacturing processes, which can be more expensive. However, they also ensure that parts fit together more accurately, resulting in better product performance, durability, and appearance.

Question 3

Innovation is built upon strong research and development (R&D)processes.

Accepted Answer

Innovation requires the development of new or improved products, services, or processes, which often requires extensive research and development. Without strong R&D processes, it is challenging to bring innovative ideas to market successfully. Therefore, innovation is built upon strong research and development processes.

Question 4

A product failure which occurs at the start of product life due to manufacturing or material defects such as a missing connection or a faulty component is referred to as functional failure.

Accepted Answer

Functional failure refers to failures at the start of product life due to manufacturing or material defects such as a missing connection or a faulty component.

Question 5

The axiomatic design method of product development tends to lessen design time.

Accepted Answer

The axiomatic design method provides a structured approach to product development, which can help to reduce design time by reducing the number of iterations required and ensuring that all requirements are considered upfront.

Question 6

A tolerance reserve or factor of safety in product design is needed to account for engineering uncertainty regarding the maximum variation allowable and compatibility with satisfactory product performance.

Accepted Answer

A tolerance reserve or factor of safety is necessary in product design to allow for variations and engineering uncertainty. This will ensure that the overall product performance remains satisfactory and meets the customer's requirements.

Question 7

A typical scheme of the House of Quality uses the symbol Ä to denote a strong relationship between any pair of technical requirements.

Accepted Answer

In the House of Quality, symbols such as solid circles (●) or numbers are typically used to denote the strength of relationships between customer requirements and technical requirements, not the symbol Ä.

Question 8

In practice,product design reliability is determined by the number of failures per unit time during the duration under consideration.

Accepted Answer

Product design reliability is indeed determined by the number of failures per unit time during the duration of use. This is often measured using reliability testing and analysis techniques.

Question 9

The Taguchi loss function can be used to set product design tolerances in an economical fashion.

Accepted Answer

The Taguchi loss function is a statistical method used in quality control and aims to minimize the loss to society, including the cost of variations in the product. By using the Taguchi loss function, manufacturers can determine the optimum product design tolerances that result in the minimum cost to society. Therefore, it can be used to set product design tolerances in an economical way.

Question 10

One of the most significant barriers to efficient product development is the adaption of concurrent engineering within an organization.

Accepted Answer

Concurrent engineering, which involves the parallel design and development of product components, is actually a strategy to improve efficiency in product development by reducing the time to market and improving product quality, rather than being a barrier.

Question 11

In series systems failure of an individual component is less critical than in parallel systems.

Accepted Answer

In series systems, the failure of an individual component can cause the whole system to fail, whereas in parallel systems, other components can continue to function even if one fails. Therefore, in series systems, failure of an individual component is more critical than in parallel systems.

Question 12

Wide tolerances in product design have a positive impact on product characteristics.

Accepted Answer

Wide tolerances in product design can actually have a negative impact on product characteristics as it allows for more variability in each product, making it harder to ensure consistency and quality. Tighter tolerances typically lead to more precise and reliable products.

Question 13

After basic technical requirements have been established in product development process,designers must set specific dimensional or operational targets and tolerances for critical manufacturing or service characteristics.

Accepted Answer

Once basic technical requirements have been established, designers need to set specific dimensional or operational targets and tolerances for critical manufacturing or service characteristics to ensure the product meets the desired quality standards. This helps to ensure that the product functions consistently and reliably during its intended use.

Question 14

The methodology of axiomatic design is based on the premise that good design is governed by laws similar to those in natural science.

Accepted Answer

The methodology of axiomatic design is based on the principle that good design is governed by laws similar to those in natural science.

Question 15

When decisions about the safety,life,serviceability,and maintainability of products are dominated by customer requirements rather than by engineering considerations,poor designs that fail in the market are often the result.

Accepted Answer

The answer of When decisions about the safety,life,serviceability,and maintainability of...

Question 16

The quality function deployment tool increases the time for new product development.

Accepted Answer

Quality Function Deployment (QFD) actually helps in understanding customer requirements and translating them into specific plans to produce products to meet those needs, often streamlining the development process and reducing time to market.

Question 17

The idea generation phase of product development usually includes prototype testing,in which a model is constructed to test the product's physical properties or use under actual operating conditions.

Accepted Answer

The idea generation phase of product development focuses on brainstorming and coming up with new concepts or solutions, not on prototype testing, which occurs later in the development process during the prototype development or testing phases.

Question 18

Under quality function deployment,all operations of a company are driven by the voice of the customer rather than by edicts of top management.

Accepted Answer

Quality function deployment is a customer-driven approach to product development where customer needs and requirements are prioritized and integrated into all operations of a company. This helps to ensure that products and services meet or exceed customer expectations and leads to improved customer satisfaction and loyalty.

Question 19

The outcome of innovation in product development is a discontinuous or breakthrough change and results in new and unique goods and services that delight customers and create competitive advantage.

Accepted Answer

This statement is true, as innovation often leads to the creation of new and unique products that can differentiate a company from its competitors and provide a competitive advantage. These innovations can sometimes be disruptive or discontinuous, meaning they create significant changes in the market and challenge existing products and services.

Question 20

The principles of axiomatic design help designers better apply tools such as TRIZ and quality function deployment.

Accepted Answer

Axiomatic design provides a framework for systematic design and can enhance the effectiveness of other design methods, such as TRIZ and QFD, by ensuring that the design meets customer requirements and minimizing the number of design parameters.

Quiz 7: Design for Quality and Product Excellence