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technical Drafting > terms for drafting > Flashcards

terms for drafting Flashcards

1
Q

How is an original concept or idea first communicated to others?

A

Technical Sketch “Graphic representation”

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2
Q

What are the basic habits related to technical drawing necessary for success as an engineer, designer, or technician

A

Neatness
Speed
Accuracy
Legibility

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3
Q

What do we call a graphic representation of a real thing, proposed design or imagined engineering change?

A

Technical drawing

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4
Q

What is the difference between Artistic and Technical drawing?

A

Artistic drawing expresses aesthetic, philosophic, or other abstract ideas whereas Technical drawing is a distinct form of drawing which follows rules and standards (objects to be built or constructed)

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5
Q

What are the stages of the design process?

A

Problem Identification
Ideation
Refinement/Analysis
Implementation/Documentation

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6
Q

Who sets the standards for technical drawing (drafting) in order to ensure the uniformity of graphic language?

A

ANSI-American National Standards Institute
ASEE-American Society of Engineering Education
SAE-Society of Automotive Engineers
ASME-American Society of Mechanical Engineers
(American National Standard Drafting Manual)

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7
Q

What type of projection can be described when the observers eye is imagined as infinite distance from the object and the plane of projection, the projectors are parallel, and perpendicular to the plane of projection?

A

Orthographic (means right-angle)
Isometric
Obliques

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8
Q

A projection or drawing is produced on a plane by points where?

A

Piercing points that pierce the plane of projection

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9
Q

What kind of scale is used to draw Maps

A

Engineers

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10
Q

What kind of scale is used to draw Buildings?

A

Architects

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11
Q

What kind of scale is used to draw Machine parts?

A

Mechanical Engineers (metric)

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12
Q

Light vertical and horizontal lines guidelines are used when

A

Lettering

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13
Q

The height of lettering is most commonly how tall?

A

3 mm (1/8”)

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14
Q

The ratio between the size in the drawing and size of the actual object is referred to as

A

Scale

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15
Q

What type of information is found in the title block?

A

The Company Information

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16
Q

List Company Information

A 
Name
Drawing Title
Drawing number
Sheet revision Block
Approval Block
Scale
Drawing Size
Sheet Number
Cage Code
Weight
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17
Q

Name of the line for a thick dark line used to draw the features of an object is?

A

Visible lines or object lines

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18
Q

Name of a thin dashed line used to draw features of an object not visible in the view seen

A

Hidden Line

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19
Q

Name of thin lines with arrows attached used to dimension drawings

A

Dimension Line

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20
Q

Name of thin lines used to determine the beginning and ending points of dimensions

A

Extension Line

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21
Q

Section line are used for

A

To show a cutaway view

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22
Q

Section lines look like

A

Angle lines in the object

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23
Q

What are cutting plane lines used for?

A

Shows where the object was cut and from which direction

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24
Q

What do cutting plane lines look like?

A

Thick dashed lines with arrows at the ends

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25
Q

What do break lines look like?

A

Short break line thick free wiggly

Long break line thin like EKG

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26
Q

What are break lines used for?

A

To Shorten the view of a Long Object

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27
Q

Describe guidelines and their uses.

A

Guidelines are light lines often used by Artists to draw the general shape as a guide to later add key features

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28
Q

Describe Construction lines and their uses.

A

Construction lines use guidelines to draw the main shape taking care to be accurate to the relative size and placement of features. Used for preserving the basic shape and proportions in Technical drawing.

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29
Q

Where two surfaces of a solid intersect is called a

A

Edge

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30
Q

A point used to represent a location in space has no

A

Width
Height
Depth

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31
Q

Four important skills needed when doing a sketch are:

A

Accuracy
Speed
Legibility
Neatness

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32
Q

The most important rule in freehand sketching is to keep:

A

The sketch in PROPORTION

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33
Q

Which sketch is most realistic looking as objects seem to recede into the distance?

A

Perspective (object appears as if in a photograph)

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34
Q

Where three or more surfaces of a solid intersect is called a

A

Vertices

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35
Q

Which sketch is quick and easy method to create sketches but has the least realistic appearance

A

Oblique

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36
Q

Describe Box construction as an aid in drawing.

A

This consists of imagining the object enclosed in a rectangular box whose sides coincide with the main faces of the object

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37
Q

On a drawing, the edge of a solid is represented by a

A

Line

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38
Q

What three choices affect the appearance of Oblique drawings?

A

The surface of the object you choose to show parallel to the projection plane.
The angle and orientation you choose for the receding lines that depict its depth
The scale you choose for the receding lines depicting the objects depth

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39
Q

What is Cavalier projection?

A

Oblique drawing that is represented as Full Scale

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40
Q

What is Cabinet projection?

A

Oblique drawing that is represented as Half-Scale

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41
Q

Which projection has equal angles between its axis?

A

Isometric

42
Q

What are four types of surfaces?

A

Planar
Single Curved
Double Curved
Warped

43
Q

A freehand sketch should not be sloppy if attention is made to :

A

Proportion
Clarity
Correct line widths

44
Q

Alphabet of lines uses are:

A

To express the meaning of each line on a technical drawing as indicated by its width (thick or thin line) and its particular line style (visible or hidden line)
Represents center axis or conveys dimension information

45
Q

Communication

A

Regardless of the language people speak a graphic representation is a basic, natural form of communication that is not tied to a particular time or place.

46
Q

Concurrent Engineering

A

A systematic approach that integrates the design and manufacture of products with the goal of optimizing all elements involved in the life cycle of the product.

47
Q

Concurrent Process

A 
Marketing
Engineering
Manufacturing
Warehouse
Final product
48
Q

Computer-Aided Engineering (CAE)

A

Allows users to simulate and analyze structures that wll be subject to various temperatures, static loads, or fluctuating loads. (Kinematic analysis studies moving parts) Some of these functions integrated with CAD software, and other packages import data from a CAD system.

49
Q

CAD and CAE

A

Using these tools, engineers can simulate, analyze and test designs efficiently, accurately, and quickly.

50
Q

Computer-Aided Manufacturing (CAM)

A

Provides computerized control for manufacturing process.
EX: Using a computer interface to control a lathe
Generating the path for milling machine systems

51
Q

CAM

A

Can be used in materials handling, assembly, and inspection.

52
Q

Constraint-Based Modeling (Parametric or feature-based modeling)

A

Uses variables to constrain the shape of the geometry.

53
Q

Coordinate-Measuring Machine (CMM)

A

Aids in speeding the time to reverse engineer some products.

54
Q

Documentation

A

Production and/or working drawings providing the details of manufacture and assemble are finalized and approved.

55
Q

Design Process

A

The organized and orderly approach to solving problems.

56
Q

Design For Six Sigma (DFSS)

A

An approach that uses engineering ans statistical tools to design products in a way that predicts and minimizes customer and manufacturing problems.

57
Q

Define, Measure, Analyze, Improve, Control (DMAIC)

A

Steps defined in a continuous improvement process that attempts to define and ensure Critical To Function (CTF) characteristics.

58
Q

Enterprise Data Management or Product Data Management (PDM)

A

Systems electronically store the various types of data associated with designing and manufacturing a product.

59
Q

Engineering Change Orders (ECOs)

A

Allows for designs to be optimized or directly modified

60
Q

Functional decompisition

A

term used for determining the sub-functions involved in a design then using those functions to reconstruct a similar product.

61
Q

ideation

A

generating possible solutions

62
Q

life cycle design

A

all aspects of a product (such as design, development , production, distributio, use, and its ultimate disposal and recycling) are considered simultaneously

63
Q

electronically store the various types of data associated with designing and manufacturing a product.

A

product data management systems

64
Q

a full size working model made to final specs

A

prototype

65
Q

uses variables to constrain the shape of the geometry

A

parametric modeling, constraint base, or feature based modeling

66
Q

strict regulations as to how designs are presented so the drawings are easy to reproduce.

A

patent drawings

67
Q

refers to the collection of digital or hard copy documents that specify the physical and functional requirements for a product.

A

product definition

68
Q

a tool for decision making that helps companies focus on a customer-driven approach and set of product characteristics.

A

quality function deployment (QFD)

69
Q

generate parts quickly

A

rapid prototyping

70
Q

motorola process to improve quality by reducing or eliminating defects

A

six sigma

71
Q

a uniform, effective graphic language

A

standards

72
Q

to form an image

A

visualization

73
Q

list the name of the persons approving the drawing and the date it was approved.

A

approval block

74
Q

a number assigned to entities that manufacture items for the government

A

CAGE code (Commercial and Government Entity)

75
Q

drawings of buildings, piping systems, and other large structures. ( tells you how many divisions of inches)

A

architects scale

76
Q

a unique number for each drawing

A

drawing number

77
Q

list the sheet size used for the drawing

A

drawing size

78
Q

briefly describe the item using a singular noun or noun phrase and modifiers if necessary to distinguish it from similar items.

A

drawing title

79
Q

decimal scale civil engineers use to draw large scale maps. ( 1 inch divided into 10,20,30,…60 parts)

A

engineers scale

80
Q

name for a particular shape of letter

A

font

81
Q

in typesetting, pairs of letters that need to be spaced more closely to appear correctly

A

kerned pair

82
Q

a particular size sheet with a drawing border

A

layout

83
Q

metric and US customary units

A

measurement systems

84
Q

scale divided in units representing inches to full size, half size, quarter size, etc

A

mechanical engineers scale

85
Q

paper and other types

A

media

86
Q

shows one or more necessary views

A

multiview projection

87
Q

show the name of the originating company or business

A

name

88
Q

when the projectors are parallel to each other, but are at angle other than 90 degrees to the plane of projection.

A

oblique projection

89
Q

one type of parallel projection. right angle projections, the parallel projections are perpendicular to the plane of projection.

A

orthographic projection

90
Q

the projectors are parallel

A

parallel projection

91
Q

the projectors come together at the station point to form a cone. represent objects as we see them or as they would appear in a photograph.

A

perspective projection

92
Q

imagine the drawing is produced by points where the projectors would pierce the projection plane

A

piercing points

93
Q

the window (square shape) that we imagine

A

plane of projection

94
Q

visual rays or lines of sight

A

projectors

95
Q

whole numbers ex. 1 of 22

A

sheet number

96
Q

height and width

A

sheet size

97
Q

track the drawing version using the number of the revisions

A

sheet revision block

98
Q

the observers eye

A

station point

99
Q

located int the lower right corner of the format

A

Title block

100
Q

margin subdivided letters on one side and numbers on the other.

A

zone numbers

101
Q

sheet size

A 
A  8.5   X  11.0
B   11.0  X  17.0
C   17.0  X  22.0
D   22.0 X 34.0
E   34.0  X 44.0

technical Drafting (7 decks)

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