2-51.
What are the foci of an ellipse?
1.
A series of intersecting arcs
2.
A series of points along a
circumference
3.
Two points on the major axis
4.
Two points on the minor axis
2-52.
When you use the foci method of
constructing an ellipse, what is your second
step?
2-53.
1.
Locating the axes
2.
Locating the center
3.
Locating the foci
4.
Locating the measurement of one half
the major axis
Refer to figure 2-47 in the TRAMAN. To
plot the second set of points on the
circumference of an ellipse, where do you
position the compass?
1.
Point A2
2.
Point B2
3.
Points CB2 and DB2
4.
Points F and F1
2-54.
What drawing tool should you use to plot a
series of points to construct an ellipse?
1.
A straightedge
2.
A scale
3.
A protractor
4.
A trammel
2-55.
The diameters of the concentric circles
represent what element of an ellipse?
1.
The circumference
2.
The foci
3.
The trammel
4.
The major and minor axes
2-56.
Using the conjugate diameter method of
ellipse construction, the initial two lines
drawn are the diameters of the concentric
circles perpendicular to each other.
1.
True
2.
False
2-57.
When you are using the parallelogram
method of ellipse construction, what is true
of the sides of the parallelogram?
1.
The sides must be perpendicular
2.
The sides must be parallel
3.
The sides must be tangent
4.
The sides must be equal
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