MEGR 3231 Final Exam Questions with Verified Solutions Graded A+
What is CAD?
What are two types of CAD? - Answers Computer Aided Design
The implementation of computers in the creation. modification, analysis, and optimization of a
design.
Drafting and Modeling
What is CAM?
What are 3 types of CAM? - Answers Computer Aided Manufacturing
Application of computers to the creation and assembly of physical components.
NC - "Numerical control" of computer driven machine tools.
RP/AM - Rapid Prototyping / Additive Manufacture
CAPP - Computer Aided Process Planning
What is CAE?
What are 3 types of CAE? - Answers Computer Aided Engineering
FEA - Finite Element Analysis. Can be mechanical of thermal. The mechanical analysis can be
static or dynamic.
,CFD - Computational Fluid Dynamics
Simulations.
CAD Research in the 50's - Answers CNC Programming
CAD Research in the 60's - Answers Sketchpad [Ivan Sutherland]
Describe Sketchpad {Ivan Sutherland] - Answers Object oriented programming
Computer power was finally available
2D sketches
Horizontal and vertical line, arcs, zoom capability
More of computer aided drawing and drafting
CAD Research in the 70's - Answers Corporate Development
Computer Power Advances
(Super computers are room sized)
What were some CAD software companies in the 70's - Answers -Unigraphics
-AutoTrol
-CATIA
-Computervision > Sun > Prime
CAD Research in the 80's - Answers Software Companies
What were some CAD software companies in the 80's - Answers Autodesk
, Bentley
Dassault
Parametric Technology
What are the forms of 2D CAD? - Answers Raster
Vector
What are the forms of 3D CAD? - Answers Surface
Solid
Wireframe
What is raster?
1 bit and 3 bit - Answers A field of points that can be turned on and off with different colors. The
whole field presents a complete graphic. Think of it like an image. (bitmap)
Depth of color depends on memory in bits per pixel.
1 bit (Monochrome)
Black or White, 1 on-off switch
3bit (Primaries)
Each pixel has 3 on-off switches
**SCALING CAUSES DISTORTION**
What is vector? - Answers A set of simple geometric features with mathematical features.
Can be scaled without distortion
Describe Electronic Engineering Drawings - Answers Allows for easier drawing modification and
duplication.
What is CAD?
What are two types of CAD? - Answers Computer Aided Design
The implementation of computers in the creation. modification, analysis, and optimization of a
design.
Drafting and Modeling
What is CAM?
What are 3 types of CAM? - Answers Computer Aided Manufacturing
Application of computers to the creation and assembly of physical components.
NC - "Numerical control" of computer driven machine tools.
RP/AM - Rapid Prototyping / Additive Manufacture
CAPP - Computer Aided Process Planning
What is CAE?
What are 3 types of CAE? - Answers Computer Aided Engineering
FEA - Finite Element Analysis. Can be mechanical of thermal. The mechanical analysis can be
static or dynamic.
,CFD - Computational Fluid Dynamics
Simulations.
CAD Research in the 50's - Answers CNC Programming
CAD Research in the 60's - Answers Sketchpad [Ivan Sutherland]
Describe Sketchpad {Ivan Sutherland] - Answers Object oriented programming
Computer power was finally available
2D sketches
Horizontal and vertical line, arcs, zoom capability
More of computer aided drawing and drafting
CAD Research in the 70's - Answers Corporate Development
Computer Power Advances
(Super computers are room sized)
What were some CAD software companies in the 70's - Answers -Unigraphics
-AutoTrol
-CATIA
-Computervision > Sun > Prime
CAD Research in the 80's - Answers Software Companies
What were some CAD software companies in the 80's - Answers Autodesk
, Bentley
Dassault
Parametric Technology
What are the forms of 2D CAD? - Answers Raster
Vector
What are the forms of 3D CAD? - Answers Surface
Solid
Wireframe
What is raster?
1 bit and 3 bit - Answers A field of points that can be turned on and off with different colors. The
whole field presents a complete graphic. Think of it like an image. (bitmap)
Depth of color depends on memory in bits per pixel.
1 bit (Monochrome)
Black or White, 1 on-off switch
3bit (Primaries)
Each pixel has 3 on-off switches
**SCALING CAUSES DISTORTION**
What is vector? - Answers A set of simple geometric features with mathematical features.
Can be scaled without distortion
Describe Electronic Engineering Drawings - Answers Allows for easier drawing modification and
duplication.
