Lesson 2.1.1
2.1.1 Virtual CAD 3D Quiz: OCR Engineering Design, Unit 3
20 questions
In partnership with Revision Ninja
Lesson 2.1.1, Virtual CAD 3D: 20 multiple choice questions for the OCR Engineering Design (J822), Unit 3: Design, evaluation and modelling, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
-
How is a single component defined in a virtual 3D CAD model?
- Full product assembly
- Two dimensional sketch
- Exploded engineering drawing
- Separate solid part
-
Which CAD simulation test is named in the engineering design specification?
- Assembly fit test
- Packaging drop test
- Cost estimation test
- Thermal expansion test
-
Which simulation checks how a CAD component responds to applied loads and forces?
- Stress simulation
- Assembly simulation
- Animation simulation
- Render simulation
-
What type of simulation checks how a moving part behaves mechanically or electronically?
- Performance simulation
- Shelling feature
- Extrude modelling
- Work plane setup
-
A designer uses CAD to simulate a bracket under a load of 50 N. Which simulation type is used?
- Stress simulation
- Rendering
- Animation
- Holes tool
-
Checking a CAD assembly model for physical interference between parts uses which simulation?
- Thermal simulation
- Fit simulation
- Fluid simulation
- Stress simulation
-
What is a key capability when creating a virtual 3D CAD product model?
- Physical prototyping only
- Manual drafting only
- Single part assembly
- Static sketching only
-
What is a major benefit of simulating a CAD model before making a physical prototype?
- Early problem identification
- Higher manufacturing costs
- Slower design iterations
- Increased material waste
-
Which CAD simulation type checks that gear teeth engage correctly in a mechanism?
- Work plane alignment
- Assembly fit
- Compound extrusion
- Surface rendering
-
Comparing a simulated stress value against a material limit uses what core design skill?
- Selecting cutting tools
- Interpreting simulation results
- Sketching orthographic views
- Performing physical disassembly
-
What determines the reliability of results in a virtual CAD simulation?
- File size
- Software cost
- Screen resolution
- Model assumptions
-
What is the best next step if a CAD simulation shows a part fails under load?
- Ignore the warning
- Print immediately
- Change material colour
- Modify the design
-
What can be verified by simulating a CAD assembly?
- Market price
- Packaging weight
- Fit and movement
- User feedback
-
Simulating the flexing of a single plastic clip checks which performance type?
- Optical clarity
- Magnetic field
- Mechanical performance
- Thermal resistance
-
Testing the voltage and current of a single PCB component in CAD is which simulation?
- Structural stress
- Acoustic damping
- Electronic performance
- Fluid flow
-
Why are virtual models used before physical prototypes are made?
- To pay taxes
- To test ideas
- To clear desks
- To print manuals
-
Checking the individual stress levels on components within a multi-part model is what type of simulation?
- Cost estimation
- Stress simulation
- Assembly animation
- Surface rendering
-
Using a CAD assembly to check if a hinge opens fully tests what aspect?
- Material density
- Drawing scale
- File format
- Component movement
-
What key feature does a 3D CAD model provide that a 2D drawing does not?
- Simulation capability
- Manual filing
- Hand sketching
- Paper printing
-
Checking that a bicycle frame and wheel fit together correctly in CAD is an example of what?
- Surface painting
- Cost accounting
- Circuit wiring
- Assembly fit modelling
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