IET 226 Midterm Lee || with A+ Guaranteed Solutions.
Difference between raster graphics and vector graphics? correct answers Raster: Resolution
oriented, pixelated, larger files
Vector: mathematical formula, not resolution dependent, small files
Benefits of employing CAD in Mechanical Design Perspective correct answers Assists creation,
improves quality and communication, provides database for CAM and CAE
Three major tasks of 3D CAD Design correct answers Part modeling, assembly modeling,
drafting
What is CAM and what is major purpose of CAM? correct answers Computer Aided
Manufacturing, connection between machining and CAD
What s FEA/FEM? What types of solution does it provide? correct answers Finite Element
Analysis/Method
Structural and thermal analysis
What is CFD? List examples of problems solved by CFD? correct answers Computation Fluid
Dynamics
Fluid and thermal flow analysis
What are the three major interests of Motion Analysis (Kinematics)? correct answers Path Speed
(velocity), acceleration
Milestone of CAD system for PC? correct answers Creation of AutoCAD
What does CATIA stand for? correct answers Computer Aided Three-Dimensional Interactive
Application
What is the Kennel of CATIA? correct answers Convergence Geometric Modeler (Dassault
System)
Examples of CAD system utilizing Parasolid Kennel correct answers NX, Solidworks, Solid
Edge, MasterCAM
Two major solid modeling methodologies in modern 3D CAD system correct answers Primitives
and sweep
Type of Primitives correct answers Cone, cylinder, wedge, sphere, torus, box, pyramid
Type of Sweep correct answers sweep, extrusion, revolve, loft
What is Boolean Operation? correct answers Subtraction, adding (unite), intersection
, What is CSG? correct answers Constructve Solid Geometry
What is B-Rep (Boundary Representation)? How does it work? correct answers Store boundries
locatios an relations
How is "Parametric Modeling" defined in CAD system? correct answers Use of certain
parameters or variables that can be modified to change the output of equation (or system)
Why "Parametric Modeling" is important in CAD system? correct answers Essential constraint
can be altered by manipulating parameters to determine/modify the shape of the model
What is the benefit of employing the methodology? correct answers Enables greater level of
precisions and prevents errors in design process and manufacturing
What is the benefits of Feature-based Modeling? correct answers Overcome dumb solids, easy to
modify, dimensions are parametric, model history available, assembly environments
Name the three Workbenches covered in class? correct answers Part design, assembly design,
drafting
What is the benefit of CATIA'S Bidirectional Associative property? correct answers Switch
between workbench/sketching features between workbenches
Name of file extension of CATIA correct answers .CATpart
.CATproduct
.CATdrawing
What is the Specification Tree? correct answers Shows the modeling history of the part
Geometric Constraints in CATIA correct answers Defines shape of curve and their relationship
with other sketch elements
Assembly Constraints in CATIA correct answers Coincidence, angle, fix, offset, contact
The functions of mouse buttons in CATIA (Zoom, Rotate, Pan) correct answers Middle button:
pan
Middle button + hold right button: rotate
Middle button + click right button: zoom
Commands in Profile Toolbar of Part Design Workbench correct answers Profile, rectangle,
circle, spline, ellipse, line, axis, point by clicking
Commands in Constraint Toolbar of Part Design Workbench correct answers Constraint
definition, constraint, fix together
Constraint definition, constraint, fix together
Corner, chamfer, trim, mirror, symmetry, project 3d elements
