Question 1

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

Accepted Answer

Narrow tolerances in product design tend to increase manufacturing costs but can improve interchangeability of parts, product performance, durability, and appearance.

Question 2

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 3

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 4

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

Accepted Answer

The principles of axiomatic design provide a systematic approach to design that can be integrated with other tools such as TRIZ and quality function deployment, helping designers better apply these tools to create better designs.

Question 5

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

Innovation in product development often results in new and unique goods and services that can be a game-changer for companies, providing them with a competitive edge in the market. This type of innovation often results in a significant and discontinuous change rather than an incremental one.

Question 6

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 7

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 premise that good design follows laws similar to those in natural science, specifically the laws of thermodynamics. Therefore, the statement is true.

Question 8

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

Accepted Answer

Innovation requires a strong emphasis on research and development, which involves the exploration of new ideas, concepts, and technologies to create new products, services, or processes that meet evolving market demands. Without an effective R&D process, innovation may be limited or ineffective.

Question 9

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

The statement is true.

Question 10

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

Accepted Answer

Wide tolerances in product design can lead to inconsistencies in product characteristics and potentially impact product quality. Tighter tolerances generally lead to more consistent and reliable product performance.

Question 11

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

Accepted Answer

The axiomatic design method aims to streamline the design process by using principles that help reduce complexity and improve efficiency, potentially decreasing design time.

Question 12

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

Accepted Answer

Quality Function Deployment (QFD) is a customer-driven process that aims to align customer needs and desires with product or service design, development, and delivery. QFD involves gathering customer requirements and feedback, and using that information to guide and prioritize business decisions. Therefore, under QFD, the voice of the customer is central to all operations, and not just the edicts of top management.

Question 13

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

Accepted Answer

The Taguchi loss function can help in setting product design tolerances in an economical way by focusing on reducing the variability in the product's performance rather than just meeting a target value. This can reduce the overall cost of manufacturing and minimize customer complaints due to variations in the product's performance.

Question 14

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 indeed needed to account for engineering uncertainty and ensure satisfactory product performance. This helps to ensure that the product will perform as intended and account for any potential variance or errors in production.

Question 15

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 16

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. The design process follows the concept stage in product development and involves evaluating design alternatives and determining specifications for all materials, components, and parts.

Question 17

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

Accepted Answer

The symbol Δ is used to denote a weak relationship between technical requirements in the House of Quality. A strong relationship is denoted by a double arrow symbol (⇔).

Question 18

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

Accepted Answer

In series systems, failure of an individual component can cause the entire system to fail, making it more critical than in parallel systems where other components can continue to function and provide some level of system operation.

Question 19

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 measured by the number of failures within a specific duration of time, so the statement is true.

Question 20

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

This statement is true. Once basic technical requirements are established, designers must set specific targets and tolerances for critical characteristics to ensure the product meets quality standards during manufacturing or service.

Quiz 7: Design for Quality and Product Excellence