CAD Cheat Sheet 2026

The 30 highest-yield CAD facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. In civil CAD, what does 'right-of-way' (ROW) refer to? → The legal boundary of land dedicated to public transportation infrastructure
2. How does Revit facilitate collaboration among multiple users? → Allows multiple users to work on the same model using a central file
3. In mechanical drafting, what does a 'section view' show? → The interior features of a part as if it were cut open along a cutting plane
4. What does IEC 61439 govern in relation to electrical equipment design and documentation? → Low-voltage switchgear and controlgear assemblies such as motor control centers
5. Which file format is the universal neutral format for exchanging 3D CAD data between different mechanical CAD software packages? → .STEP (STP)
6. In a civil engineering site plan, what does a dashed line typically represent? → Proposed underground utilities or hidden elements
7. Which US standard defines graphic symbols used for electrical and electronics schematic diagrams? → ANSI/IEEE 315
8. Which drawing view type in mechanical CAD shows the interior features of a part by cutting through it with a defined cutting plane? → Section view
9. What is a 'block attribute' used for in AutoCAD electrical symbol blocks? → Storing variable text such as part numbers or component values within a reusable block
10. Which tool or methodology is most appropriate for analyzing specialist 3d modeling and design outcomes? → Maintaining professional boundaries while building collaborative relationships
11. A new regulation impacts specialist architectural modeling with revit procedures. What should a CAD professional do first? → Ensuring compliance with current regulatory requirements and standards
12. Which AutoCAD Civil 3D tool is used to calculate the volume of earth moved between an existing surface and a proposed surface? → Both A and B
13. A new regulation impacts specialist 2d drafting and design procedures. What should a CAD professional do first? → Ensuring compliance with current regulatory requirements and standards
14. What does 'superelevation' refer to in road design CAD? → The banking (cross-slope) of a road through a curve to counteract centrifugal force
15. What is the recommended frequency for reviewing and updating specialist 2d drafting and design protocols? → Monitoring outcomes through regular data collection and trend analysis
16. What is the primary purpose of a grading group in AutoCAD Civil 3D? → To model site grading and earthwork volumes
17. In Inventor or SolidWorks, what is a 'parametric model'? → A model whose geometry is driven by editable dimension parameters
18. What is the function of 'Layers' in 2D drafting? → Organize drawing elements for better visibility
19. Which AutoCAD Civil 3D object type is used to model the horizontal and vertical geometry of a road centerline? → Alignment
20. What is the most common mistake professionals make when implementing specialist architectural modeling with revit strategies? → Developing contingency plans for high-probability risk scenarios
21. Which plan view symbol in civil CAD typically indicates a storm drain manhole? → A concentric circle (target symbol)
22. Which tool or methodology is most appropriate for analyzing specialist 2d drafting and design outcomes? → Maintaining professional boundaries while building collaborative relationships
23. What does a 'single-line diagram' (SLD) represent in power system electrical CAD? → A simplified topology diagram using one line to represent multi-phase conductors
24. What is 'sheet metal flat pattern' used for in CAD? → Generating a 2D drawing of a formed sheet metal part as if unfolded flat for cutting
25. In Gerber-based PCB fabrication output, what information does the NC drill file contain? → X,Y coordinates and diameters of all holes to be drilled
26. What is the most common mistake professionals make when implementing specialist advanced cad techniques strategies? → Developing contingency plans for high-probability risk scenarios
27. Which CAD method ensures smooth transitions between surfaces? → Fillet
28. In the context of computer-aided design specialist, which principle most directly governs specialist advanced cad techniques practices? → Applying evidence-based methodologies with peer-reviewed support
29. Which CAD technique is used to generate complex 3D surfaces from multiple curves? → Loft
30. What is the primary purpose of 3D modeling in CAD? → Generate realistic three-dimensional objects