Mechanical Drawing Board and CAD Techniques ©2010

Chapter 5: Geometry for Drafting

Practice Tests

1
The ____ command in AutoCAD® allows you to inscribe a polygon within a circle or circumscribe it about a circle.
A)MLINE
B)POLYLINE
C)POLYGON
D)POLYSCRIBE
E)XLINE
2
One line is perpendicular to another line when they
A)cross at right angles.
B)cross at their midpoints.
C)form an acute angle.
D)touch but do not cross.
E)are always the same distance apart.
3
A pentagon is a ____ polygon.
A)four-sided
B)five-sided
C)regular
D)six-sided
E)eight-sided
4
The point at which the two arms of an angle meet is the
A)point of tangency.
B)hypotenuse.
C)bisecting point.
D)vertex.
E)chord.
5
To create parallel lines in AutoCAD®, use the ____ command.
A)LINE
B)DIVIDE
C)LINE and then PER
D)BREAK
E)OFFSET
6
AutoCAD® has a set of features called object ____ that allow you to move automatically to important points on any AutoCAD® object.
A)jumps
B)links
C)intersects
D)snaps
E)breaks
7
A right triangle is one that has a(n) ____ angle at one of its vertices.
A)80°
B)120°
C)90°
D)30°
E)60°
8
A polygon is a closed figure formed by ____ or more line segments joined at their endpoints.
A)two
B)three
C)four
D)five
E)six
9
A triangle that has exactly two equal sides is a(n) ____ triangle.
A)equilateral
B)isosceles
C)oblique
D)scalene
E)right
10
A triangle in which all three sides are equal in length is a(n) ____ triangle.
A)right
B)oblique
C)isosceles
D)scalene
E)equilateral
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