6-16.
In orthographic projections, the technique
you use to represent an object on the plane
of projection involves which of the
following elements?
1.
2.
3.
4.
The use of projectors that are parallel
to each other and perpendicular to the
plane of projection
The assumption that the viewer is
infinitely distant from the object and
its plane of projection
The assumption that the viewer is
midway between the object and its
plane of projection
The use of projectors that converge at
a central point
6-17.
What common feature classifies
axonometric drawings as orthographic
projections?
1.
Only one plane of projection is shown
2.
Three faces of the object are shown
3.
The object is rotated into the plane of
projection
4.
The projectors are perpendicular to the
plane of projection
6-18.
A drawing that shows three faces of an
object in one view and presents the object
as it approximately appears to the observer
is drawn to what type of projection?
1.
Axonometric
2.
Orthographic
3.
Cabinet
4.
Quadromatic
6-19.
What is a distinguishing feature of
axonometric projections?
1.
The position of the views in relation to
the plane of projection
2.
The inclined position of the object to
the plane of projection
3.
The lack of distortion in the views
4.
The position of the projectors to the
plane of projection
6-20.
6-21.
6-22.
6-23.
6-24.
Which of the following projections
indicates equally foreshortened surfaces?
1.
Oblique
2.
Cabinet
3.
Isometric
4.
Orthographic
In isometric projections, isometric planes
have what angular relationship at the
intersection of the isometric axes?
1.
30°
2.
60°
3.
90°
4.
120°
When you make an isometric scale, what
angle should you make with the horizontal?
1.
30°
2.
45°
3.
60°
4.
90°
Which of the following lines is an isometric
line?
1.
A line bisecting the isometric angles
2.
A line parallel to the vertical axis
3.
A line connecting isometric axes
4.
A line perpendicular to isometric axes
Any line not parallel to the isometric axes
is known as what type of line?
1.
Nonisometric
2.
Perspective
3.
Foreshortened
4.
Oblique
36
