A S S I G N M E N T
4
Textbook Assignment: Geometrical Construction. Pages 4-1 through 4-16. Drafting:
Projections and Sketching.
Pages 5-1 through 5-37.
4-1.
What is the first step in drawing a
line through a given point, P,
parallel to line XY?
1.
Place compass needlepoint on P;
strike an arc intersecting XY at
any point
2.
Place compass needlepoint on P;
strike an arc intersecting the
approximate midpoint of line XY
3.
Place compass needlepoint on any
point along line XY; strike an
arc through point P and line XY
4.
Place compass needlepoint on X;
strike an arc through Y and near
point P
4-2.
To construct a perpendicular from a
given point, P, on line XY, you
should first place the compass needle
at what point(s) ?
1. P
2.
X or Y
3.
A point near the midpoint of PX
and PY
4.
Any convenient point along XY
4-3.
What points on a line should be used
as centers for the intersecting arcs
drawn to bisect the line?
1.
The center and one end
2.
A random point and one end
3.
A random point and the center
4.
The two ends
4-4.
Line XY is to be divided into 12
equal parts by geometric
construction.
Which of the following
statements concerning this procedure
is correct?
1.
Ray line PY, drawn from Y, is the
same length as XY
2.
A compass should be set to spread
equal to one twelfth of the
length of XY
3.
A line should be drawn from X to
the 12th interval on ray line PY
4.
The acute angle formed by XY and
ray line PY should be 30° or less
4-5.
From what point should you carry out
the first step of the procedure to
bisect or transfer angle XYZ?
(Always use the middle letter as the
apex. )
1.
A random point on XY
2.
A random point on YZ
3.
The apex Y
4.
The midpoint of arc XZ
4-6.
In which, if any, of the following
constructions is it necessary to
draw an angle by using a protractor?
1.
Constructing an equilateral
triangle on a given inscribed .
circle
2.
Constructing a right triangle
for which the hypotenuse and one
side are given
3.
Constructing an equilateral
triangle for which the length of
one side is given
4.
None of the above
4-7.
Which of the following actions
should be your first step in
constructing a square geometrically
when you are given only the length
of its diagonal?
1.
Lay out a horizontal line equal
to one half of the given length
2.
Lay out a vertical line equal to
one half of the given length
3.
Lay out a horizontal line equal
to twice the given length
4.
Lay out a horizontal line equal
to the given length
4-8.
In completing the drawing of a
certain geometric figure, you have
drawn the sides of the figure
tangent to the points where two
diameters (at right angles to each
other) intersect a given circle.
What geometric figure have you
drawn?
1.
A square in a given
circumscribed circle
2.
A square on a given inscribed
circle
3.
An equilateral triangle in a
given circumscribed circle
4.
An equilateral triangle on a
given inscribed circle
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