CAD Study Guide 2026
Everything you need to pass the CAD exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CAD Exam Format at a Glance
📚 CAD Topics to Study (21)
✍️ Sample CAD Questions & Answers
1. Modem CAD systems are based on?
ICG is interactive computer graphics. It denotes a user-oriented system in which computer is used to create, transform and display data in pictorial or symbolic forms.
2. What is an external reference (XREF) in CAD, and why is it used?
XREFs allow multiple drawings to reference a common base file (such as a floor plan) so all dependent drawings update automatically when the base is modified.
3. In a CAD motion simulation, what property describes resistance to change in rotational velocity around an axis?
Moment of inertia measures how mass is distributed relative to a rotational axis and determines how much torque is needed to change angular velocity.
4. In Computer-Aided Design, what does "resolution" refer to in digital design?
Resolution refers to the density of pixels (measured in PPI/DPI), with higher resolution providing greater detail and clarity. Standard screen resolution is 72 PPI, while print typically requires 300 DPI.
5. What does mesh convergence testing verify in FEA?
Mesh convergence testing confirms that refining the mesh no longer significantly changes the results, ensuring numerical accuracy.
6. What is the relationship between theory and practice in Computer-Aided Design rendering techniques?
Theory and practice are complementary: theoretical knowledge provides the conceptual framework and understanding that guides effective, evidence-based practical application in professional settings.