Test 2 practice - version B

Which of the following are valid angles of revolution for the REVOLVE command?

180° -180° 360° Answer: All of the above. <======

Gizmos are not displayed in ______________________________ mode.

2D

The commands used to change a mesh model into either a surface model or a solid model are:

?

The first step in drawing a mesh box primitive is to ______________________________.

?

Which command is used to remove a crease from a mesh model?

?

Which of the following are required to create a sweep?

?

Which of the following is true of the smoothness levels for a mesh object?

?

Which mass properties does a surface extrusion have?

A surface extrusion does not have mass properties.

Which of the following statements is true about banking?

Banking is the natural rotation of a profile on a 3D sweep path. The sweep path must be nonplanar to set banking. The Bank option of the SWEEP command is used to turn banking on or off. Answer: All of the above. <======

Which option of the SWEEP command is used to change the point on the shape that will be moved along the path?

Base point

What does it mean to say that AutoCAD is a parametric solid modeling program?

Certain parameters of a solid can be changed after the solid is created.

What is the term for an angle designed into parts to allow the part to be removed from a mold?

Draft angle

Which command is used to place a round on the edge of a solid?

FILLETEDGE

What are the subobjects of which all solid primitives are composed?

Faces, edges, and vertices.

A countersink is similar to a counterbore with straight sides.

False

A normal is a vector extending parallel to a given cross section in a loft and is perpendicular to the path where the plane of the cross section intersects the path.

False

A planar surface created with the PLANESURF command can be stretched using grip editing.

False

After the SLICE command is used, the history of the solid must be reset in order to retain it.

False

Face grips are circular; where are they located?

In the center of the face.

Which of the following commands is used to mirror objects about any plane, regardless of the current UCS?

MIRROR3D

Which operations can be performed on the vertex subobjects of a solid?

Moving, rotating, and scaling.

What guides the cross-sectional shapes used in a loft?

One of the following: cross sections only, a path, guide curves.

Which of the following are the two types of grips displayed on a 3D solid in AutoCAD?

Parameter and base.

By default, the profile is aligned ______________________________ to the sweep path.

Perpendicular

When rotating a subobject, how can you cycle through the various end results produced by the operation?

Press the [Ctrl] key.

The current subobject filter is set by picking the appropriate button in the ______________________________ panel on the Home, Solid, or Mesh tab of the ribbon.

Selection

When using the REVOLVE command, what must you do after selecting the objects to revolve?

Specify the axis of revolution.

Extruding a line with the PRESSPULL command creates a(n) ______________________________.

Surface

If the 2D Wireframe visual style is current when the 3DROTATE or 3DMOVE command is entered, what happens to the display?

The Wireframe visual style is set current for the duration of the command.

When an extrusion is created along a path, what happens to the extrusion at angled corners?

The extrusion is mitered.

What is the purpose of subobject filters?

To limit the selection to the specified subobject type.

A closed shape can be extruded into a surface by specifying the output as a surface.

True

A context-sensitive panel is one only displayed in the ribbon when certain objects or subobjects are selected.

True

A helix cannot be used as a shape for a sweep, but can be used as a path for a sweep.

True

Another term for mesh models is subdivision surfaces.

True

Architectural molding can be created by first drawing the profile of the molding as a closed 2D shape, then extruding the profile.

True

If a 2D shape intersects the sweep path, the shape is swept along the path at the point of intersection.

True

The [Shift]+[Ctrl] key combination is used to remove a subobject from the current selection set.

True

The implied path for an extrusion is always a straight line, but a curved line can be used as a path.

True

When a mesh model is created by converting a solid model or surface model, the SMOOTHMESHCONVERT system variable controls whether faces are smoothed and optimized.

True

When creating a mesh primitive, mesh tessellation divisions should be set ____.

before creating the mesh primitive

When using the REVOLVE command, ______________________________ shapes can be revolved into solids or surfaces.

closed

A surface extrusion is a(n) ____.

closed or open, two-dimensional shape that has been given thickness ??

A(n) ______________________________ is a recess with angled sides machined into a part, centered on a hole, that allows the head of a fastener to rest below the surface of the part.

countersink

A(n) ______________________________ is a sharpening of a mesh subobject created with the MESHCREASE command.

crease

If two circles are lofted and the result is to be a motorcycle grip, ______________________________ must be used to control the shape of the loft.

guide curves

The operations that can be performed with a gizmo are ____.

moving, scaling, and rotating

A(n) ______________________________ shape can only be extruded into a surface.

open

A(n) ______________________________ is a two-dimensional solid. It has no thickness, but has mass properties.

region

A(n) ______________________________ is a rounded exterior edge.

round