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Chapter: Mechanical : Computer Aided Design : Fundamentals of Computer Graphics

Important Questions and Answers: Fundamentals of Computer Graphics

Mechanical - Computer Aided Design - Fundamentals of Computer Graphics

FUNDAMENTALS OF COMPUTER GRAPHICS

 

1.  What is meant by Engineer ing Design Process?

 

 

The Engineering Design Process is the formulation of a plan to help an engineer build a product with a specified performance goal.

 

The Engineering Design process is a multi-step process including the research, conceptualization, feasibilit y assessment, establishing design requirements, preliminary design, detailed design, production planning and tool design, and finally prodduction.

 

2.  Shortly narrate Embodiment Design.

 

 

It is a process where the structured development of the design concepts takes place. It is in this phase that decisions are made on strength, material selection, size shape and spatial compatibility. Embodiment design is concerned with three major tasks – product architecture, configuration d esign, and parametric design.

 

3.     What are the steps involved in Conceptual Design?

 

i.           Identification of customer needs

 

ii.           Problem defin ition

 

iii.           Gathering Inf ormation

 

iv.          Conceptualization

 

v.           Concept selection

 

4.     Describe Detailed Design.

 

It is in this phase the design is brought to a state where it has the complete engineering description of a tested an d a producible product. Any missing information about the arrangement, form, material,, manufacturing process, dimensions, tolerances etc of each part is added and detailed engineeering drawing suitable for manufacturing are prepared.

 

5.  Why Technology is applied in the Design Process?

  

Design is the esse nce of engineering

 

Starts with recognition of some need

 

Progresses to physical implementation

 

Results may be simple or complex

 

Design can be of two kind:

 

 

    

O  Somethin g completely new , or

 

O  An impro ved form of something already in existence



6.What are the steps involved in Morphology of Design?


 

5.     Plot the various stages of P roduct Life Cycle (PLC).


 

6.     What are the stages of conv entional sequential engineering design proce ss?


 

7.     Clearly sketch components of concurrent engineering design process?


 

 

10.        List the application of Computers to Design.

 

         Modeling of the D esign

 

         Engineering desig n and analysis

 

         Evaluation of Prototype through Simulation and Testing

 

         Drafting and Desi gn Documentation

 

11.        List any four benefits of CA D.

 

         Shorter Lead Times

 

         Flexibility in Des ign

 

         Design Analysis

 

         Fewer Design Error

 

         Standardization of Design, Drafting and Documentation

 

         Drawings are mor e understandable

 

12.        Write short note on Windo wing Transformation.

 

When it is neces sary to examine in detail a part of a picture b eing displayed, a window may be placed a round the desired part and the windowed area magnified to fill the whole screen and mul tiple views of the model may also be shown on the same screen.

 

The window is a rectangular frame or boundary through which the user looks onto the model. The vie wport is the area on the screen in which the contents of the window are to be presented as an image.



 

13. What is meant by clipping Transformation?

 

The clipping is an operation to plot part of a picture within the given window of the plotting area and to discard the rest.


 

14. How Zooming has done in CG?

 

This transformation is carried out to provide enlarged or shrunk view of a picture detail


 

15.        List some 2 –D transformations.

 

a.     Translation

 

b.     Rotation

 

c.      Scaling

 

d.     Mirroring

 

e.      Clipping

 


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