2025/2026 EXAM QUESTIONS AND
ANSWERS | 100% PASS
1. What's the difference between Raster Graphics and Vector Graphics? -
🧠ANSWER ✔✔Raster Graphics are resolution based graphics. Whereas
Vector Graphics are based on mathematical formulas defining geometric
primitive. Pixelization
2. What's the benefits of employing CAD system in Mechanical Design
Perspective? - 🧠ANSWER ✔✔Computer assisted systems, increase
productivity of the designer, improve quality of design, improve
communication through more efficient documentation and provide a multi-
purpose data base.
,3. Which other system can take benefits of geometry created by CAD
system? - 🧠ANSWER ✔✔CAM (Computer Aided Manufacturing), FEA,FEM
(Finite Element Analysis; Finite Element Method), CFD (Computation Fluid
Dynamics), and Kinematics (Motion Analysis).
4. Three major Tasks of 3D CAD Design - 🧠ANSWER ✔✔Part Modeling
(Sketch Mode, Feature Creation, and Part Editing), Assembly Modeling
(DOF-Degree of Freedom, Assembly Constrain, and CAD Library), and
Drafting(Detail Part Drawing, GD&T, Assembly Drawing)
5. What is CAM and what is major purpose of CAM? - 🧠ANSWER ✔✔CAM
(Computer Aided Manufacturing) to make connection between machining
and CAD
6. What is FEA/FEM? What types of solution does it provided? - 🧠ANSWER
✔✔FEA,FEM (Finite Element Analysis/Method) provides structural analysis
vibration analysis, fatigue analysis, and thermal analysis.
7. What is CFD? List examples of problem solved by CFD? - 🧠ANSWER
✔✔CFD (Computation Fluid Dynamics) is the analysis of the fluid and
thermal flow. Ex. The flow of hot water through pipes.
, 8. What are the three major interests of Motion Analysis (Kinematics)? -
🧠ANSWER ✔✔Kinematics (Motion Analysis) is motion analysis of path,
speed, and acceleration. As well as Mechanism analysis.
9. The milestone of CAD system for IBM PC? Name the company and
product. - 🧠ANSWER ✔✔AutoCAD (Autodesk, 1982)
10. Which CAD system was developed based on solid geometry and
feature-based parametric techniques for defining parts and assemblies first
time in history? - 🧠ANSWER ✔✔Pro/Engineer (PTC, 1987) CREO
11. What does CATIA stand for? - 🧠ANSWER ✔✔Computer Aided Three-
Dimensional Interactive Application
12. What is the Kennel of CATIA? - 🧠ANSWER ✔✔Convergence
Geometric Modeler (Dassault Systems)
14. Two major solid modeling methodologies in modern 3D CAD systems -
🧠ANSWER ✔✔(Sweep) Boundary Representation (B-Rep) and
Construction Solids Geometry (CSG) (Primitives)
13. Name CAD systems utilizing Parasolid Kennel. - 🧠ANSWER ✔✔Simens
NX, SolidWorks, Solid Edge, MasterCAM...
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