First Angle Projection ( Interview Question )

In third-angle projection, the object is conceptually located in 1st quadrant.
Projection View at Opposite place
                              Front View never change the place.
                              Right View  in Left Place of Front View.
                              Left View  in right Place of Front View.
                              Top View  in Bottom Place of Front View.
                              Bottom View  in top Place of Front View.

How to Easily Understood Drawing paper Sizes ?

This is a easy way to understood Paper sizes for ISO Standard. (International Organization for Standardization)

The First CAD software...

 the first true CAD software, a very innovative system (although of course primitive compared to today's CAD software) called "Sketchpad" was developed by Ivan Sutherland as part oh his PhD thesis at MIT in the early 1960s. Sketchpad was especially innovative CAD software because the designer interacted with the computer graphically by using a light pen to draw on the computer's monitor.

Try to make this Machine in Designing Software...

                                      This is radial Drill Machine which is use for Drilling purpose.