Practice IB Design Technology (DT) Topic 3.4 Computer-aided Design with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for 3.4 Computer-aided Design and mirrors Paper 1, 2, 3 style where relevant.
Get instant solutions, detailed explanations, and build confidence with questions aligned to IB examiner expectations.
What CAD simulation is specifically designed to calculate the flow of gases or liquids over a digital model?
Which of the following types of modelling involves using software to create and modify design representations?
Which of the following is a primary advantage of using Computer-Aided Design (CAD) software in the design process?
Professional landscape gardeners often use cordless electric hedge trimmers for extended periods. These tools must be designed to accommodate the physiological limits of the human body to ensure both efficiency and user well-being.
Figure 1: A professional cordless hedge trimmer
(a) two factors that influence an individual's physical work capacity when operating heavy outdoor power tools.
(b) why the grip diameter of the trimmer's handle is a critical physiological factor in the tool's design.
(c) two ways that environmental stressors can impact the physiological performance of the operator.
A design team starts a project by creating a master 'skeleton' part that defines the overall volume and key connection points for a drone. They then use the geometry of this master part to generate the individual motor mounts and battery housing, ensuring that any changes to the master part automatically update the dependent components.
Which CAD modelling strategy is being applied?
Surface modelling
Life cycle analysis (LCA)
Finite element analysis (FEA)
Computational fluid dynamics (CFD)
Conceptual modelling
Graphical modelling
Physical modelling
Computer-aided design (CAD)
(d) how the management of Hand-Arm Vibration Syndrome (HAVS) in the design of the tool can improve the safety, fatigue levels, and long-term health of the operator.
Surface modelling
Increased time required for design iterations
Enhanced ability to create and modify detailed 3D models
Limited collaboration opportunities
Reduced precision in design
Bottom-up modelling
Top-down modelling
Wireframe modelling
