Hands-On AutoCAD LT ©2005

Chapter 6: Mechanical Dimensioning

Dimensioning Holes and Round Features

1.
Holes are dimensioned in AutoCAD LT® using the
A)DIMRADIUS command.
B)DIMANGULAR command.
C)DIMORDINATE command.
D)DIMDIAMETER command.
2.
A hole that has an enlarged, cylindrically-shaped top portion to allow clearance for a socket or hex-head screw is a
A)flush hole.
B)countersunk hole.
C)counterbored hole.
D)counterspot hole.
3.
A bolt circle is
A)a circular pattern of bolt holes in which each hole is equidistant from the center of the bolt.
B)a method of dimensioning holes that are equidistant from the center of a bolt.
C)a form of linear hole pattern.
D)the part of a bolt that mates with the object being bolted.
4.
To create a rounded edge in AutoCAD LT®, use the
A)CHAMFER command.
B)ROUND command.
C)POLYGON command.
D)FILLET command.
5.
To dimension a rounded edge, use the
A)DIMRADIUS command.
B)DIMANGULAR command.
C)DIMORDINATE command.
D)DIMDIAMETER command.
6.
The DIMCENTER command is used to
A)dimension noncircular curves.
B)remove duplicate center marks from center points that are shared by concentric circles or arcs.
C)add center marks to circles and arcs that are not otherwise dimensioned.
D)dimension noncritical circles and arcs.
7.
Witness lines are used to clarify and simplify a detail drawing when
A)holes or other features lie on a bolt circle.
B)features line up vertically or horizontally.
C)no circular features are present.
D)the drawing is too crowded to place the necessary linear dimensions.
8.
All of the following are DIMSTYLE options for center marks except
A)Line.
B)Mark.
C)Arc.
D)None.
9.
Two nonparallel lines can be extended to meet at a sharp corner by
A)using the Join option of the PLINE command.
B)creating a fillet between the two lines with a radius of 0.
C)creating a new line to join the two existing lines.
D)using the INTERSECT command.
10.
Polar dimensioning locates holes on a bolt circle by giving
A)the diameter of the bolt circle and an angle.
B)the diameter of the bolt circle and the diameter of the holes.
C)the radius of the bolt circle and the distance between holes.
D)the diameter of the bolt circle and the radius of the holes.
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