Level 2D Fundamentals By Luke Jumper
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, AutoCAD ® 2026 Tutorial Solution Manual 1
Ch. 1 Review Questions:
1. What are the advantages and disadvantages of using CAD systems to create
engineering drawings?
Advantages of using CAD systems to create engineering drawings: Faster and more
accurate geometric constructions. Engineering Drawings created by CAD systems can
be re-used and modified faster. CAD drawings can be easily transferred through
internet. Large number of CAD drawings can be easily moved, from one location to
another, by using portable storage devices. A lot of the information stored in the CAD
database can be re-used during the manufacturing processes.
Disadvantages of using CAD systems to create engineering drawings: Initial cost to
purchase CAD hardware and software can be quite high. Trainings are required to
implement using the CAD systems, which may require additional time and money.
Electronic format of CAD drawings are fragile as CAD files can be lost accidentally
after a power failure, a hardware crash or even human mistakes.
2. What is the default AutoCAD filename extension?
The default AutoCAD filename extension is DWG. The DWG file format is a binary
file format created and used by AutoCAD. The DWG file format can contain 2D or
3D objects and offers compression and a CRC check for internal data error.
3. How do the GRID and SNAP options assist us in sketching?
The GRID and SNAP options can be used to provide a visual reference as to the size
of objects and to restrict the movement of the cursor to a set increment on the screen.
4. List and describe the different coordinate entry methods available in AutoCAD?
In AutoCAD, there are five methods for specifying the locations of points when we
create planar geometric entities.
➢ Interactive method: Use the cursor to select on the screen.
➢ Absolute coordinates (Format: X,Y): Type the X and Y coordinates to locate the
point on the current coordinate system relative to the origin.
➢ Relative rectangular coordinates (Format: @X,Y): Type the X and Y
coordinates relative to the last point.
➢ Relative polar coordinates (Format: @Distance<angle): Type a distance and
angle relative to the last point.
➢ Direct Distance entry technique: Specify a second point by first moving the
cursor to indicate direction and then entering a distance.
5. When using the Line command, which option allows us to quickly create a line-
segment connecting back to the starting point?
The Close option allows us to quickly create a line-segment connecting back to the
starting point.