Hands-On AutoCAD LT ©2005

Chapter 13: Rotary Devices

Creating Gear Drawings

1.
The simplified method of representing gears includes all of the following except the
A)addendum circle.
B)clearance circle.
C)pitch circle.
D)dedendum circle.
2.
In AutoCAD LT®, a region is
A)a closed object that is created from other 2D objects.
B)the specified limits of the drawing area.
C)the area enclosed by a closed 2D object such as a circle or ellipse.
D)a 3D object created from a series of 2D objects.
3.
The REGION command is useful when
A)a closed object such as a circle or ellipse needs to be extruded into a 3D object.
B)a collection of individual objects is used to create a complex 2D object that needs to be selected as a single unit.
C)two 2D objects at different places in the drawing need to be connected to form a 3D object.
D)an open 2D object such as an arc needs to be closed.
4.
The REGION command is often used in AutoCAD LT® gear drawings when
A)simplified representation is used.
B)schematic representation is used.
C)detailed representation is used.
D)isometric representation is used.
5.
On an assembly drawing that includes gears, the gears should touch on the
A)addendum circle.
B)clearance circle.
C)pitch circle.
D)dedendum circle.
6.
All of the following information is generally included in the notes on a gear drawing except the
A)center hub.
B)bore size.
C)type of gear.
D)pressure angle.
7.
All of the following are possible sources of gear geometry for a CAD drawing except
A)CAD files provided by the gear manufacturers.
B)on-line catalogs.
C)DesignCenter.
D)symbol libraries.
8.
The AREA command
A)requires a closed area to produce an accurate calculation.
B)can be used on both 2D and 3D objects.
C)can calculate the total area of a complex region such as a gear instantly.
D)presents the Area Calculation dialog box from which you can perform multiple area calculations.
9.
The AREA command calculates area in
A)inches.
B)feet.
C)meters.
D)whatever scale the drawing uses.
10.
To use the AREA command to calculate the area of a complex object that consists of several lines and arcs, you must first
A)convert the objects into a region.
B)make sure all the lines and arcs are in the same plane.
C)save the drawing.
D)copy the object to a new location in the drawing.
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