IB DP Design Technology Chapter 3 Modelling

What is modelling in design technology?

• a) It is a process of designing the final product.

• b) It is a process of creating a physical or virtual representation of the product.

• c) It is a process of testing the product.

• d) It is a process of marketing the product.

What is the primary purpose of using models in design technology?

• a) To save time and cost in the manufacturing process.

• b) To help designers to understand and visualize the product.

• c) To impress clients with the design.

• d) To test the product's functionality.

Which of the following is an example of a physical model?

• a) A 3D computer model of a building.

• b) A sketch of a car design.

• c) A wooden model of a bridge.

What is the most significant advantage of using computer-aided design (CAD) software for modelling?

• a) It is easy to learn and use.

• b) It allows for complex shapes and designs to be created.

• c) It does not require any technical skills.

• d) It is less expensive than physical modelling.

What is the purpose of prototyping in the modelling process?

• a) To create a final product.

• b) To test and refine the design.

• c) To impress clients with the design.

• d) To provide feedback to the designer.

Which of the following is a disadvantage of physical modelling?

• a) It is expensive and time-consuming.

• b) It requires specialized technical skills.

• c) It is not as accurate as digital modelling.

• d) It allows for easier collaboration among designers.

Answer explanation

The disadvantage of physical modelling is that it can be expensive and time-consuming compared to digital modelling. This is because physical modelling requires the use of materials, equipment, and space to build the prototype, which can be costly. Additionally, the process of building a physical model can take a significant amount of time, especially if changes need to be made to the design. This can slow down the design process and increase development time. Therefore, designers may prefer to use digital modelling as a more cost-effective and time-efficient alternative.

What is the purpose of exploded views in technical drawings?

• a) To show the internal structure of the product.

• b) To show how the product can be assembled and disassembled.

• c) To show the final product from different angles.

• d) To show the product's color and texture.

Which of the following is an example of a virtual model?

• a) A scale model of a car.

• b) A prototype made of foam board.

• c) A 3D model of a chair in a computer program.

• d) A physical model made of clay.

What is the purpose of simulating the product in the modelling process?

• a) To test the product's performance and functionality.

• b) To create a realistic physical prototype.

• c) To impress clients with the design.

• d) To add features to the product.

Answer explanation

The purpose of simulating the product in the modelling process is to test the product's performance and functionality. Simulation involves creating a computer-based model that mimics the behavior of the real product in different scenarios. By running simulations, designers can evaluate how the product will perform in different conditions and test its functionality. They can also identify and fix any potential design flaws before the product goes into production, which can save time and money.

Simulating a product can help designers to make more informed decisions about the design, and ensure that it meets the required performance and safety standards. It also allows them to experiment with different design options and evaluate their impact on the product's performance. Therefore, simulating the product is an essential step in the modelling process that helps to optimize the design and ensure its quality.

Which of the following is a disadvantage of virtual modelling?

• a) It is not as accurate as physical modelling.

• b) It requires expensive software and hardware.

• c) It does not allow for collaboration and feedback.

• d) It is more time-consuming than physical modelling.