Hands-On AutoCAD LT ©2005

Chapter 4: Pictorial Representations

Oblique Projections

1.
In oblique projections,
A)the front of the objects is flat to the viewing plane.
B)all of the projection lines are drawn perpendicular to the viewing plane.
C)the axes are at 120° angles to one another.
D)the depth of the projected drawing is not drawn to scale.
2.
By convention, the receding axis in an oblique drawing is usually drawn at
A)45°.
B)60°.
C)90°.
D)120°.
3.
All of the following are types of oblique projections except
A)general.
B)conventional.
C)cabinet.
D)cavalier.
4.
To help create oblique projections, AutoCAD LT® provides
A)an OBLIQUE system variable.
B)an Oblique option in the ISOPLANE command.
C)an Oblique snap mode.
D)no specific tools.
5.
In cavalier oblique projection, lines parallel to
A)the X axis are drawn at half scale.
B)the Z axis are drawn at half scale.
C)the Y and Z axes are drawn at half scale.
D)all three axes are drawn at full scale.
6.
In cabinet oblique projection, lines parallel to
A)the X axis are drawn at half scale.
B)the Z axis are drawn at half scale.
C)the Y and Z axes are drawn at half scale.
D)all three axes are drawn at full scale.
7.
To create a circular hole on the XY plane of an oblique drawing, use the
A)ELLIPSE command.
B)ISOPLANE command.
C)CIRCLE command.
D)ISOCIRCLE command.
8.
In an oblique drawing, Ortho can be used
A)for horizontal and vertical lines in the XY plane.
B)for lines that follow the receding axes.
C)for all lines while the Oblique snap mode is active.
D)for inclined lines in the XY plane.
9.
Noncircular curves on an oblique projection
A)are created using the Noncircular option of the ARC command.
B)should be placed parallel to the viewing plane.
C)should be approximated using the PLINE command.
D)should be avoided in AutoCAD LT®.
10.
In a cavalier oblique projection, lines along the Z axis
A)can be measured using an angled rule or scale.
B)cannot be measured.
C)can be measured only if the Z axis is drawn at 45°.
D)can be measured and multiplied by 3 to find their true length.
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