CAD
By default when you create a new drawing file, the value of the z coordinate for all new 2D objects is...
0
The axes in an isometric drawing are ____________________ degrees apart.
120
Which command allows you to move an object in three dimensions?
3DMOVE
Which command allows you to change the angle of a 3D object about an axis?
3DROTATE
An example of a subobject on a solid is...
A vertex, an edge, and a face
You can view a 3D model from...
Any point in space.
To bevel an edge of a solid model, you should use what command?
CHAMFER command
What is not a Boolean operation?
Composition
What is an example of a visual style in AutoCAD?
Conceptual
When you work in Isometric drawing mode, the ____________________ run parallel to the isometric grid.
Cross hairs
To create accurate and properly constructed isometric circles, use the...
ELLIPSE command
What command can produce a procedural surface?
EXTRUDE
True/False: A 3D face is a type of wireframe object.
False
True/False: An elevation of 8 creates an object with a height of 8 units.
False
True/False: Changing to a new UCS does not affect the coordinate system icon and grid.
False
True/False: Mirroring a 2D object in 3D space automatically creates a 3D object.
False
True/False: Only closed polylines can be extruded.
False
True/False: Perspective projection displays an object with parallel lines that do not converge toward a vanishing point.
False
True/False: The PRESSPULL command allows you to distort the surface of a solid to create a freeform shape.
False
True/False: The PRESSPULL command allows you to taper the sides of the volume you are pressing or pulling.
False
True/False: The UNION command does not work on composite solids.
False
True/False: The most logical way to create a UCS oriented to the current drawing screen is to use the Object option.
False
True/False: To mirror an object in 3D space, you should use the 3DMIRROR command.
False
True/False: When the 3DFORBIT command is active, the camera stays stationary and the target moves around the camera.
False
True/False: The most efficient way to create a solid cone is to enter the CYLINDER command and specify a top radius of 0.
False. Cylinder command.
True/False: The DONUT command allows you to create donut-shaped solid primitives.
False. It's a torus.
True/False: Creating a new solid model or surface by specifying and connecting a series of 2D cross sections is known as sweeping.
False. Loft.
To create an open 3D spiral object, use what command?
HELIX command
A line with endpoints at coordinates 0,2,2 and 0,2,5 is...
Horizontal on the YZ plane
Creating a 3D surface or solid model by connecting several 2D cross sections is known as...
Lofting
One of the reasons that solid models are becoming more widely used than surface models is that solid models...
More accurately reflect a physical prototype.
Can a block be extruded using the EXTRUDE command?
No
Is the origin of a UCS fixed?
No
A football-shaped object results when you specify...
None of the above
To show dimensions in their proper locations on an isometric drawing, you should use the ____________________ option of the DIMEDIT command.
Oblique
Which of the following commands is available on the Other Navigation Modes shortcut menu?
Pan, Zoom, 3D Free Orbit, and Constrained Orbit
An isometric drawing produces a ____________________ representation of an object.
Pictorial
To place isometric circles correctly on a drawing, you must be sure to toggle the crosshairs to the correct isometric ____________________.
Plane
To toggle the isometric crosshairs from one plane to another...
Press CTRL E or use the ISOPLANE command
To set up the alignment grid to create an isometric drawing, enter the...
SNAP command
Which of the following commands is capable of creating a hole in a solid model?
SUBTRACT
What is a predefined solid primitive in AutoCAD?
Sphere
Moving a 2D profile along a path curve to create a 3D surface or solid model is known as...
Sweeping
To create a solid model from a planar surface, which command should you use?
THICKEN
To create a solid model from a surface, which command should you use?
THICKEN
To add depth to a 2D object such as a polyline or circle, which command might you use?
THICKNESS
The following methods allow you to rotate a model in 3D space:
The ViewCube, The SteeringWheel, and 3DFORBIT
The three drawing planes in an isometric drawing are the left, right, and ____________________ planes.
Top
True/False: A gizmo is an icon that simplifies the selection process for 3D commands.
True
True/False: A polyline that contains a crossing or self-intersecting segment cannot be extruded.
True
True/False: An important benefit of creating designs in 3D is the ability to communicate the designs more accurately to people and groups both inside and outside a company.
True
True/False: AutoCAD allows you to create a new UCS that is aligned with an existing planar object.
True
True/False: AutoCAD provides a predefined UCS for each of the six viewpoints in 3D space (top, bottom, front, back, left, and right).
True
True/False: Boolean operations in AutoCAD are derived from a mathematical system created by George Boole for use with logic formulas and operations.
True
True/False: By definition, the top surface of an extruded part has exactly the same area as the lower surface.
True
True/False: It is useful to save new UCSs you create in a drawing so that you can move from one to another quickly without having to recreate them each time.
True
True/False: One difference between a solid model and a surface model is that the defining geometry in a solid model defines a watertight volume.
True
True/False: The Constrained Orbit mode of rotation limits the rotation of the model with respect to the Z axis and XY plane.
True
True/False: The three axes of the Cartesian coordinate system are the X, Y, and Z axes.
True
True/False: The three subobject filtering selection options are Vertex, Edge, and Face.
True
True/False: To create a hollow pipe with a 2" outer diameter and a wall thickness of 1/16", you could create concentric cylinders with diameters of 2" and 1 15/16" and then subtract the smaller cylinder from the larger one.
True
True/False: To create a solid wedge, you must identify two points diagonally across from each other on the base of the wedge.
True
True/False: To zoom within the 3D orbit view, right-click and pick Zoom from the shortcut menu.
True
True/False: Two points at different elevations in 3D space have different z values.
True
True/False: When AutoCAD subtracts one solid from another, it also updates the mass properties of the resulting solid.
True
True/False: You can create a new UCS by moving the origin of the current UCS.
True
A line with endpoints at coordinates 2,4,0 and 2,8,0 is...
Vertical on the XY plane
A representation of an object that uses lines and curves to define its boundaries is a(n)...
Wireframe
Who is the bestest person in the whole, wide universe?
Zoe Clark(me)
To create an elliptical cylinder, you can...
a. enter the Elliptical option of the CYLINDER command. AND b. create an ellipse using the ELLIPSE command and then extrude it.
What are three properties of the world coordinate system?
a. is AutoCAD's default coordinate system. b. has the X axis horizontal on the screen. c. has the Y axis vertical on the screen.
A composite solid is one that...
results when any Boolean operation is applied to two or more solid primitives.
The purpose of the UCS icon is to...
show the orientation of the axes in the current UCS.
Solid primitives are...
the basic building blocks for creating complex solid models.
When defining a UCS by selecting 3 points,
the first point you select becomes the origin and the other two define the X and Y axes.
An isometric drawing is a...
two-dimensional drawing that gives a three-dimensional appearance.