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IET 226 MIDTERM EXAM REVIEW
Questions with Detailed Verified
Answers
Question:1. What's the difference between Raster Graphics and Vector
Graphics?
Ans: Raster Graphics are resolution based graphics. Whereas Vector Graphics
are based on mathematical formulas defining geometric primitive.
Pixelization
Question: 2. What's the benefits of employing CAD system in Mechanical
Design Perspective?
Ans: 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.
Question: 3. Which other system can take benefits of geometry created by
CAD system?
Ans: CAM (Computer Aided Manufacturing), FEA,FEM (Finite Element
Analysis; Finite Element Method), CFD (Computation Fluid Dynamics), and
Kinematics (Motion Analysis).
Question: 4. Three major Tasks of 3D CAD Design
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Ans: 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)
Question: 5. What is CAM and what is major purpose of CAM?
Ans: CAM (Computer Aided Manufacturing) to make connection between
machining and CAD
Question: 6. What is FEA/FEM? What types of solution does it provided?
Ans: FEA,FEM (Finite Element Analysis/Method) provides structural analysis
vibration analysis, fatigue analysis, and thermal analysis.
Question: 7. What is CFD? List examples of problem solved by CFD?
Ans: CFD (Computation Fluid Dynamics) is the analysis of the fluid and
thermal flow. Ex. The flow of hot water through pipes.
Question: 8. What are the three major interests of Motion Analysis
(Kinematics)?
Ans: Kinematics (Motion Analysis) is motion analysis of path, speed, and
acceleration. As well as Mechanism analysis.
Question: 9. The milestone of CAD system for IBM PC? Name the company
and product.
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Ans: AutoCAD (Autodesk, 1982)
Question: 10. Which CAD system was developed based on solid geometry and
feature-based parametric techniques for defining parts and assemblies first
time in history?
Ans: Pro/Engineer (PTC, 1987) CREO
Question: 11. What does CATIA stand for?
Ans: Computer Aided Three-Dimensional Interactive Application
Question: 12. What is the Kennel of CATIA?
Ans: Convergence Geometric Modeler (Dassault Systems)
Question: 14. Two major solid modeling methodologies in modern 3D CAD
systems
Ans: (Sweep) Boundary Representation (B-Rep) and Construction Solids
Geometry (CSG) (Primitives)
Question: 13. Name CAD systems utilizing Parasolid Kennel.
Ans: Simens NX, SolidWorks, Solid Edge, MasterCAM...
Question: 15. What is Primitives?
IET 226 MIDTERM EXAM REVIEW
Questions with Detailed Verified
Answers
Question:1. What's the difference between Raster Graphics and Vector
Graphics?
Ans: Raster Graphics are resolution based graphics. Whereas Vector Graphics
are based on mathematical formulas defining geometric primitive.
Pixelization
Question: 2. What's the benefits of employing CAD system in Mechanical
Design Perspective?
Ans: 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.
Question: 3. Which other system can take benefits of geometry created by
CAD system?
Ans: CAM (Computer Aided Manufacturing), FEA,FEM (Finite Element
Analysis; Finite Element Method), CFD (Computation Fluid Dynamics), and
Kinematics (Motion Analysis).
Question: 4. Three major Tasks of 3D CAD Design
, Page | 2
Ans: 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)
Question: 5. What is CAM and what is major purpose of CAM?
Ans: CAM (Computer Aided Manufacturing) to make connection between
machining and CAD
Question: 6. What is FEA/FEM? What types of solution does it provided?
Ans: FEA,FEM (Finite Element Analysis/Method) provides structural analysis
vibration analysis, fatigue analysis, and thermal analysis.
Question: 7. What is CFD? List examples of problem solved by CFD?
Ans: CFD (Computation Fluid Dynamics) is the analysis of the fluid and
thermal flow. Ex. The flow of hot water through pipes.
Question: 8. What are the three major interests of Motion Analysis
(Kinematics)?
Ans: Kinematics (Motion Analysis) is motion analysis of path, speed, and
acceleration. As well as Mechanism analysis.
Question: 9. The milestone of CAD system for IBM PC? Name the company
and product.
, Page | 3
Ans: AutoCAD (Autodesk, 1982)
Question: 10. Which CAD system was developed based on solid geometry and
feature-based parametric techniques for defining parts and assemblies first
time in history?
Ans: Pro/Engineer (PTC, 1987) CREO
Question: 11. What does CATIA stand for?
Ans: Computer Aided Three-Dimensional Interactive Application
Question: 12. What is the Kennel of CATIA?
Ans: Convergence Geometric Modeler (Dassault Systems)
Question: 14. Two major solid modeling methodologies in modern 3D CAD
systems
Ans: (Sweep) Boundary Representation (B-Rep) and Construction Solids
Geometry (CSG) (Primitives)
Question: 13. Name CAD systems utilizing Parasolid Kennel.
Ans: Simens NX, SolidWorks, Solid Edge, MasterCAM...
Question: 15. What is Primitives?
