Me 009 (Ucr) Final

Front 1

When creating an isometric sketch, make sure you show ________ of the surface in question.

Back 1

only the visible part

Front 2

Circles appear as __________ in isometric sketches.

Back 2

ellipses

Front 3

When making oblique sketches, the length of the _________ dimension is not too important.

Back 3

receding

Front 4

When an object is rotated about two axes, ______

remains in the same place.

Back 4

a single point

Front 5

What is the name for the process that involves generating as many ideas as possible?

Back 5

brainstorming

Front 6

What is the alternate name for brainstorming?

Back 6

6-3-5 method

Front 7

In the _______ stage of design, the design engineer must address questions and answers from the customer's/client's perspective and from the engineers perspective.

Back 7

problem identification

Front 8

The paradigm of _____ is sometimes referred to as "design for manufacturability."

Back 8

concurrent engineering

Front 9

To create a ______, a profile curve is rotated about an axis.

Back 9

revolved solid

Front 10

Which geometric constraint forces the centers of two circles or arcs to be coincident?

Back 10

Concentric

Front 11

______ are the measurements used to control the size and position of entities in your sketch.

Back 11

Dimensional contraints

Front 12

The first constraint usually applied to a new sketch is a _______ constraint, which serves as an anchor to fix the geometry in space.

Back 12

ground

Front 13

In a sketch, the length of the extrusion or angle of rotation also must be specified. There are several options for defining the length of the extrusion, but the simplest is to specify a _________ extrusion.

Back 13

blind

Front 14

Adding material to or removing material from the original model can create a more complex model. When material is added, a(n) ________ is created.

Back 14

protrusion

Front 15

The various protrusions and cuts on the main body of a model are called ____________.

Back 15

features

Front 16

A feature array takes one feature, called the ________ feature, and places copies of it on the model at a specified spacing.

Back 16

master

Front 17

A blend (loft feature) requires at least _________ profile sketch(es), and the model is formed be a smooth transition between these profiles.

Back 17

two

Front 18

The first step in modeling a solid part is to ________.

Back 18

decompose it into features

Front 19

A __________ feature removes most of the interior volume of a solid model, leaving a relatively this wall of material that closely conforms to the outer surfaces of the original model.

Back 19

shell

Front 20

A ___________ feature creates a boss or cut by moving a profile along a path.

Back 20

swept

Front 21

A _____________ is a mathematical representation of a physical object that includes the surfaces and the interior material, usually including a computer-based simulation that produces a visual display of an object as if it existed in three dimensions.

Back 21

solid model

Front 22

A feature created by the addition of a solid volume to a model is called a(n) ___________.

Back 22

protrusion

Front 23

A planar sketch that is used to create a solid is called a _____________.

Back 23

profile

Front 24

A system that allows the user to vary the dimensions of the model is called ___________ solid modeling.

Back 24

parametric

Front 25

The attributes of features, such as dimensions, that can be modified are called ____________.

Back 25

parameters

Front 26

A smooth transition of the internal edge created by intersecting surfaces and tangent to both intersecting surfaces is called a _________.

Back 26

fillet

Front 27

A smooth transition of the external edge created by intersecting surfaces and tangent to both intersecting surfaces is called a ______.

Back 27

round

Front 28

A feature array, also called a ______, is a method for making additional features by placing copies of a master feature on the model at a specified equal spacing.

Back 28

feature pattern

Front 29

Distinctive geometric shapes on solid parts are called _______________.

Back 29

features

Front 30

A boss or cut feature that is bounded by the surfaces swept out in space by a planar profile as it is pulled along a path perpendicular to the plane of the profile is called a(n) ____________.

Back 30

extruded feature

Front 31

It should be noted that reverse engineering is a(n) _____________ in industry.

Back 31

legitimate activity

Front 32

The systematic scanning of a part by a coordinate measuring machine is sometimes called __________ the model.

Back 32

digitizing

Front 33

The final task of a reverse engineering project should be to consider potential ____________ of the product.

Back 33

redesign

Front 34

The most commonly used sets of axes for mass properties analysis calculations are either the Cartesian axes (standard x-, y-, or z-axes) or the ______ axes.

Back 34

centroidal

Front 35

Similar to the way the computer can solve for the moment of inertia of a complex object, the FEA method is founded on dividing the part into small pieces, which are together called a(n) ______.

Back 35

mesh

Front 36

The fabrication process used to make a part is often dependent upon its ______; that is, the fabrication process is dependent upon the number of parts that are to be made.

Back 36

production volume

Front 37

Holes that go completely though the workpiece are called ________.

Back 37

through holes

Front 38

In electric discharge machining, the wire and workpiece are charged to ______________.

Back 38

opposite electric potentials

Front 39

Some holes, slots, and cutouts with odd geometries can be made with an operation called _______, in which a long toothed cutting tool is rapidly slid through the workpiece to form a hole or slot.

Back 39

broaching

Front 40

________ is similar to 3-D printing except that a powdered metal replaces the powdered plastic.

Back 40

Laser sintering

Front 41

The ___________ process uses a rapidly rotating abrasive wheel to remove material form a workpiece very slowly.

Back 41

grinding

Front 42

____________ includes any special tools, fixtures, or other devices needed to create, align, hold, or transport a part during its fabrication.

Back 42

Tooling

Front 43

All casting processes require a ___________ of the desired part.

Back 43

mold

Front 44

In the process known as _____________, thin shelled parts are created from sheets of thin, malleable metal, also known as sheet metal.

Back 44

deep drawing

Front 45

______ is an operation that is used on sheet metals. As with deep drawing, a metal is deformed between a cavity and a closely fitting plunger. The edge of the plunger fits closely to the edge of the cavity, and the metal is cut with a shearing action.

Back 45

Stamping

Front 46

In cast and molded parts, a good design practice is to keep major wall thicknesses ___ throughout the part to reduce distortion of the part during its cooling.

Back 46

about the same

Front 47

What is a problem with pictorial representations that is inherent in the use of one view of an object's three dimensions?

Back 47

distortion of angles

Front 48

The simplest curve ---- a circle or an arc of a circle---appears ______ on a pictorial.

Back 48

elliptical

Front 49

In some pictorials, such as an object with only _____ edges seen in the isometric view , the length distortion is the same in every direction.

Back 49

rectilinear

Front 50

In _____ projection, the image of an object is composed of points projected from individual points on the object onto the viewing plane such that the projection of each point is perpendicular to the viewing plane.

Back 50

orthogonal

Front 51

Objects such as engineered parts can usually be fully defined when they are viewed through a set of viewing planes that together form a(n) ______.

Back 51

glass box

Front 52

How many standard or principal views are there?

Back 52

six

Front 53

Although there are no defined rules as to which views must be included or excluded in a formal engineering drawing, there is a preferred configuration---the front, top, and ___ views.

Back 53

right-side

Front 54

________, represented by alternating short and long dashes, cannot be seen on the real object, but they must be included on the drawing to identify where the center of the circular hole is located on the object.

Back 54

Centerlines

Front 55

In some parts of Asia and Europe, ___ projection is commonly used. Each viewing plane is behind the object, which means the object is between you and the viewing plane.

Back 55

first-angle

Front 56

One step in creating a multiview drawing is to mark the limit of the size of the object in all three directions. These limits define a(n) _ space, which represents the rectilinear limits occupied by the object in each view.

Back 56

foundation

Front 57

When representing features with small radii, the preferred representation would be a presentation where the small rounds are represented as it they were ______.

Back 57

true edges

Front 58

For some objects for which six views are insufficient, a supplementary view, known as a(n) ______ view, must be created before measurements can be specified for the feature represented in that view.

Back 58

auxiliary

Front 59

A(n) _______ drawing refers to three types of pictorial drawings: isometric, dimetric, and trimetric.

Back 59

axonometric

Front 60

In a dimetric drawing, how many of the normal surfaces have equal angles between them?

Back 60

two

Front 61

If an oblique surface is a triangle, it will be a triangle in _______ of the standard views.

Back 61

three

Front 62

In isometric pictorial views, _____ are generally not shown unless needed for interpretation of the object.

Back 62

hidden lines

Front 63

When you are looking directly at a normal surface in an orthographic view, a cylinder is represented by a(n) ____.

Back 63

line

Front 64

In an oblique drawing, the depth of the object is shown at a(n) ___________ angle.

Back 64

receding

Front 65

In oblique drawings, what is the preferred angle (in degrees) for the receding dimensions?

Back 65

45

Front 66

Which technique can be used to create an oblique drawing of an object that has circular features such as holes or cylinders?

Back 66

boxing-in

Front 67

Perspectives incorporate the concept of ___________- to produce the 3-D shape of an object on the plane of the paper or the computer screen.

Back 67

vanishing points

Front 68

Which type of perspective drawing is most often used?

Back 68

two-point

Front 69

The easiest way to create pictorial drawings is to extract them from _____.

Back 69

solid models

Front 70

The simplest section view is the _____.

Back 70

full section

Front 71

Section lines, which are a form of ______, are used to identify areas on the section view that are solid on the original whole object.

Back 71

shading

Front 72

The term _____________ is used to describe the different scale of a section view with respect to the original.

Back 72

magnification

Front 73

One of the main incentives for using section views is to reduce the use of ___________.

Back 73

hidden lines

Front 74

A(n) ___________ allows multiple features, which normally require multiple section views, to be captures on a single view.

Back 74

offset section

Front 75

On an engineering drawing, edge views of a stepped cutting surface are represented by heavy stepped lines with alternating ______ dashes.

Back 75

short-short-long

Front 76

One way of visualizing a half section is to imagine a part that is cut such that _ of it is removed to reveal the interior detail.

Back 76

one-quarter

Front 77

The decision to use section views is ___________.

Back 77

somewhat subjective

Front 78

If hidden features are relatively few and simple in geometry, such as a few simple holes or slots that go all the way through the part, the use of_____ is probably best.

Back 78

hidden lines

Front 79

In the creation of an offset section view, the transition between the various cutting segments are known as __________.

Back 79

step segments

Front 80

Horizontal surfaces are seen in true shape and size in the _______ view.

Back 80

top

Front 81

Front and right-side views are adjacent views that share ___________.

Back 81

height

Front 82

Most drawings conform to the International System of Units (SI), which is metric and uses the _______ as the standard unit; or they conform to U.S. customary units with a standard unit of the decimal inch.

Back 82

millimeter

Front 83

A numerical value expressed in appropriate units of measure and used to define the size, location, geometric characteristics, or surface texture of a part or part feature is a(n) _______.

Back 83

dimension

Front 84

A(n) ________ line, along with its arrowheads, shows the direction and extent of a dimension.

Back 84

dimension

Front 85

_______________ are used to direct a dimension, note, or symbol to the intended place on a drawing.

Back 85

Leaders

Front 86

When the "inside" dimensions are more important or more critical than the overall dimension, the overall dimension should be identified as a(n) _____________ dimension.

Back 86

reference

Front 87

In ________ dimensioning, all of the dimensions in a given direction originate from a base or datum.

Back 87

baseline

Front 88

Baseline dimensioning is often used for CNC machines that work from a ____ coordinate system.

Back 88

rectangular

Front 89

A good rule of thumb to follow when dimensioning is to dimension only to visible or ______ lines.

Back 89

solid

Front 90

Dimension lines also should be at least _______ millimeters from any view, helping to avoid clutter.

Back 90

ten

Front 91

Engineering drawings require the use of single-stroke _ lettering.

Back 91

gothic

Front 92

Arcs are dimensioned as radii using the ______, symbol, which is shown preceding the dimension value.

Back 92

R

Front 93

____ holes are used for applications with flat head and oval head screws.

Back 93

Countersunk

Front 94

__________ holes are used for applications with flat head and oval head screws.

Back 94

Countersunk

Front 95

In engineering, the practice of measuring parts in called _________.

Back 95

metrology

Front 96

Other than engineering scales or rulers, the most economical tool for reverse engineering is a handheld ______.

Back 96

caliper

Front 97

Holes that only go part of the way through the workpiece are known as _______________.

Back 97

blind

Front 98

_______________, which are denoted as equally spaced dashed lines on a drawing, represent the edges of an object or its features that cannot be seen on the real object but would be visible if the object were partially transparent.

Back 98

Hidden lines

Front 99

A(n) ___________, the end view of a centerline, is identified by a right-angle cross.

Back 99

centermark

Front 100

In ____________ dimensioning, features are dimensioned relative to one another.

Back 100

chain

Front 101

______________________ are beveled or angles edges that typically appear on the ends of shafts or fasteners. They are dimensioned by giving a length from the end of the part and an angle or by specifying two distances.

Back 101

Chamfers

Front 102

______________ holes are standard machined holes that are used to accept fillister head and hex socket head screws.

Back 102

Counterbore

Front 103

___________ notes typically appear in the lower right-hand corner of a drawing and apply to the whole drawing.

Back 103

General

Front 104

Unless otherwise specified, all dimensions are applicable at _________ degrees Celsius. Compensation may be made for measurements made at other temperatures.

Back 104

20

Front 105

__________ dimensioning usually yields the largest accumulation of tolerance between features.

Back 105

Chain

Front 106

. _____________ refers to a fit where there is space between the two mating parts.

Back 106

Clearance fit

Front 107

___________ is a fit where the two mating parts have intersecting nominal volumes, requiring the deformation of the parts.

Back 107

Inteferance

Front 108

_________________ dimensioning and tolerancing (GD&T) is a 3-D mathematical system that allows a designer to describe the form, orientation, and location of features on a part within precise tolerance zones.

Back 108

Geometric

Front 109

The main focus of GD&T is the ___________ frame, which contains the geometric characteristic symbol, the geometric tolerance, and relative datum.

Back 109

feature control

Front 110

In GD&T, the ______________ (MMC) modifier allows the size of the zone to change if the size of the hole changes.

Back 110

maximum material condition

Front 111

In GD&T, _________ of a surface specifies a 3-D tolerance zone defined by two contoured surfaces. When a datum reference is not specifies, the tolerance controls only the shape of the contour. When datums are specified, the tolerance controls the shape of the contour as well as the size and/or location of the contour.

Back 111

profile

Front 112

If you have decided that you would like someone else to make your parts or devices for you, you must produce a set of formal documents known as _____ to send to the fabricator.

Back 112

drawings

Front 113

Assembly drawings contain information that identifies the parts or subassemblies in the assembly. This is done with ________ and arrows pointing to each part. The former are closed geometric shapes, not necessarily circular, that contain a number.

Back 113

balloons

Front 114

The accepted national standard in the United States for Dimensioning and Tolerancing is _______________.

Back 114

ANSI Y1415

Front 115

______________________ tolerances are tolerances where the deviation is divided in some way above and below the basic size of the dimension.

Back 115

Bilateral