Hands-On AutoCAD LT ©2005

Chapter 4: Pictorial Representations

Dimetric and Trimetric Projections

1.
Pictorial representations are commonly used by designers to relay ideas and
A)manufacturing specifications.
B)sizes of individual parts.
C)concepts.
D)construction procedures and processes.
2.
Two-dimensional drawings that make objects appear to be three-dimensional are
A)multiview drawings.
B)multiview projections.
C)three-view drawings.
D)pictorial drawings.
3.
The three basic types of pictorial drawings are oblique, perspective, and
A)axonometric.
B)orthographic.
C)multiview.
D)presentation.
4.
The process of reducing the length of lines in a pictorial drawing by proportional amounts to give the illusion of depth or distance is
A)scaling.
B)foreshortening.
C)proportioning.
D)adjusting.
5.
The type of pictorial projection in which two axes have the same scale and two of the three angles between the axes are equal is
A)dimetric.
B)isometric.
C)trimetric.
D)perspective.
6.
In dimetric projection, the planes of projection of the two axes that have equal angles are foreshortened by
A)one half.
B)equal amounts.
C)unequal amounts.
D)proportional amounts.
7.
To create a dimetric projection,
A)use the Dimetric option of the ISOPLANE command.
B)use the Oblique option of the DIMETRIC command.
C)change to the Dimetric snap mode.
D)AutoCAD LT® provides no specific tools.
8.
The front surface of an object drawn in trimetric projection is viewed
A)at an angle to the viewing plane.
B)parallel to the viewing plane.
C)in front of the viewing plane.
D)behind the viewing plane.
9.
All of the axes in trimetric projection are foreshortened
A)equally.
B)at an oblique angle to the receding axes.
C)by different amounts.
D)by scaling parallel to the plane of projection.
10.
When creating a trimetric drawing, you should draw the line that represents the height of the object
A)at a 30° angle.
B)at any angle other than 90°.
C)perfectly vertical (use Ortho).
D)perfectly horizontal (use Ortho).
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