Drafting Midterm (ch.1-6)
What does AIA stand for?
American Institute of Architects
In which field must a drafter be familiar with floor plans, elevations, and construction details?
Architectural Drafters
Limits
AutoCAD setting that defines the size of the drawing area
A "C" size sheet is equal in size to two of these sheets laid side by side
B
The Dimension Style Manager tab where the orientation of arrowheads on circles and arcs is defined.
Fit
The Dimension Style Tab where the overall scale of dimension features is defined.
Fit
The scale 1=2 means..
Half scale/ half sized
What is the name of the HATCH setting that controls the density of the hatch pattern
Hatch scale
What is the range of lead hardness for general drafting and sketching?
Lead hardness grades (0.3, 0.5, 0.7, 0.9 mm)
The Dimension Style Manager tab where center mark style is defined.
Lines
The Dimension Style Tab where the distance that dimension lines should extend beyond tick marks is defined.
Lines
What is a reference dimension?
a dimension given to any features that are just for reference - or visualization purposes.
The Dimension Style Manager tab where dimension precision is defined.
Primary Units
What unit of measurement is represented by each small increment on the 1:100 metric scale as interpreted by a mechanical engineer?
Scale ruler
Which of the following is not an AutoCAD object snap setting: Node, Tangent, Quadrant, or Start point?
Starpoint
The Dimension Style Manager tab where dimension arrow size is defined.
Symbols and Arrows
The Dimension Style Tab where the size of tick marks (obliques) is defined.
Symbols and Arrows
The Dimension Style Manager tab where dimension heighth is defined.
Text
The Dimension Style Manager tab where text height is defined.
Text
The Dimension Style Tab where placing text above vertical dimension lines is defined
Text
Decimal
Units settings commonly used in mechanical drawings
Line weight 0.3 mm is for..
hidden, center, dimension, extension, and section line
What does each, actual, physically smallest incremented unit read as on all sides of the metric scale?
millimeters
Job Description: Mechanical
the drafting field that is concerned with screw threads and fasteners
what does quarter scale mean?
the size of the drawing is 1/4 the size of the object
How is a triangle used with a parallel straightedge to draw a vertical line that is perpendicular to a horizontal line?
the triangle should be placed on top of the straight-edge. (Triangles, T-squares, and straight edge)
T/F: Engineers are responsible for determining dimensions on architectural drawings and not calculations.
False, Drafters are responsible
The acronym of the International Standards Organization is IOS.
False, ISO stands for "International Organization for Standardization (ISO)"
T/F: Aligned text on architectural dimension lines are in direction of the top and left of the drawing sheet.
False, bottom and right side of sheet
T/F: Generally, the locations of doors and windows defined with dimensions on architectural drawings indicate a dimension to the edge of the opening but not the center.
False, dimension from middle of door or window
T/F: The diameter of a hole is a location dimension.
False, it is a size dimension
T/F: Unidirectional text direction is associated with AIA and NCS architectural standards for dimensioning while aligned (bottom and right side of the drawing sheet) are acceptable and associated with ASME mechanical drawings.
False, other way around
T/F: The engineer's scale is used by mechanical engineers in the U.S. to measure drawings in metric
False, they use metric scale to measure in metric units
Who is responsible for calculating tolerances on an engineering drawing?
Mechanical Engineers
Chamfer
Modify command used to bevel the corners of objects
Scale
Modify command used to change the size of an object
Fillet
Modify command used to round the corners of objects
The Dimension Style Tab where the format for dimension units is defined.
Primary Units
What does 1/4" = 1'-0" represent on an architectural drawing of a house?
That 1 foot on the constructed building equals ¼ inch on the drawing.
What is the name of the tool on the inquiry toolbar that is used to calculate the distance between two points?
The Dimension Tool
T/F: A datum is a theoretically perfect feature (plane, axis, or point) from which dimensions can be referenced.
True
T/F: A dimension to which the tolerances are applied is called a nominal dimension.
True
What is the multiplier used to convert decimal inches to millimeters?
multiply an inch value by 25.4
Name three qualities that technical lettering should possess.
neat, uniform, legible
three tools used by drafters to draw parallel, horizontal and vertical lines are?
parallel straight edge, the 30-60 triangle and the 45 triangle
Job Description: Process Piping
the type of drafters who are concerned with chemical plants and oil refineries
Mechanical B size sheet
11 X 17
Architectural A size sheet
12 X 9
What is a tolerance?
A limit of variation in a dimension, volume, or property
Polar
A type of coordinate defined by a length of an angle (East is 0 angles measured counterclockwise
Absolute
A type of coordinate that is relative to 0,0
Relative
A type of coordinate that is relative to the last point defined.
name the standard that controls the line thickness in an ASME drawing
ASME Y14.2 Line Thickness Standard
Which of the following attributes do most employers value?
Ability to fit in a team Ability to work independently Ability to communicate clearly
a drafter who divides their duties between mechanical drafting and electrical/electronics drafting is known as?
Aerospace
Who is responsible for determining dimensions on architectural drawings?
Drafters
Mechanical D size sheet
34 X 22
T/F: Drafting triangles come in the following angles: (a) 22.5 degrees; (b) and 90 degrees.
45 and 30/60
Architectural D size sheet
36 X 24
Mechanical A size sheet
8.5 X 11
What ratio indicates that a drawing is full size?
1/1, 1=1, 1:1
name the job title of someone who might constitute a design team
CAD Designers Design Technicians Designers Checkers Drafters
in what field does a drafter have to be familiar with roads, bridges, water, and waste systems?
Civil
Rectangle
Command that requires you to define two diagonal points
Name three term that are used to describe the creation of technical drawings.
Drafting, Engineering Drawings, Engineering Graphics
Polygon
Draw command used to create a multi-sided object
What setting should be defined before the limits of an AutoCAD drawing are set?
Drawing Area
What is the direction of the default base angle setting in auto cad?
East
which field in drafting has the highest median salary?
Electronics Drafters
designers have a higher salary than drafters because
They have a higher degree of responsibility for the success of the project
How does a drafter determine which view will be the front view?
They use the principle view, whichever one will be the most helpful
How can an employer find out about a student's CAD skills, work habits, and dependability?
Through interviews and tests
Pressing <F5> or <Ctrl> +E are the two ways to change the orientation of the crosshairs in an isometric drawing created with AutoCAD
True
Architectural B size sheet
18 X 12
How many degrees is a Half moon protractor divided into?
180
Mechanical C size sheet
22 X 17
Architectural C size sheet
24 X 18
Which method of labeling text complies with the ASME standard: unidirectional or aligned?
Aligned
The job titles of people who might constitute a design team are: (a) Drafters; (b) Designers; (c) Architects; (d) and Engineers.
Drafters, Designers, Architects, and Engineers
Job Description: Electronics
Drafting field concerned with the design of semiconductor devices
T/F: A reference dimension that is included on a technical drawing is for information only and is not necessary to manufacture, or inspect, the part. No tolerances are applied to the reference dimensions. Reference dimensions are enclosed in parentheses with CAD applications or by writing the term "REF" for hand-drawings.
True
T/F: A slash or tick marks are the termination symbol often used on architectural dimension lines.
True
T/F: A tolerance can be described as acceptable variation to manufacturing engineers.
True
T/F: Computer Assigned Manufacturing has the acronym CAM.
True
T/F: In the United States, the United States National CAD Standard (NCS) is an organization that publishes a drawing standard for architectural drawings, along with the American Institute of Architects (AIA).
True
T/F: In the United States, the name of the organization that publishes a dimensioning standard for engineering drawings is the American Society of Mechanical Engineers (ASME).
True
T/F: The designer is responsible for calculating tolerances in an engineering drawing.
True
T/F: The protractor divides a full circle into 360 degrees and the half-moon protractor into 180 degress.
True
T/F: The six regular views are: (a) Top; (b) Bottom; (c) Front; (d) Back; (e) and Left & Right Side.
True
T/F: The three qualities that technical lettering should possess are: (a) neatness; (b) legibility; (c) and uniform size.
True
T/F: There are approximately 2.54cm or 25.4mm within 1-inch.
True
T/F: Three tools used by traditional drafters to draw parallel horizontal & vertical lines are: (a) Parallel Straight Edge; (b) the 30-60 Triangle; (c) and the 45 Triangle.
True
T/F: a dimension to which the tolerances are applies is called nominal dimension
True
Job Description: Associates
Type of college degree held by many drafters
Job Description: Bachelor's
Type of college degree held by most engineers and architects
Line weight 0.6 mm is for..
Visible and cutting plane lines
What is a datum?
a fixed starting point of a scale or operation
The four lead widths in which technical pencils can be purchased are: (a) 0.3mm; (b) 0.5mm; (c) 0.7mm; (d) and 0.9mm.
a-d, all of the above
how many views of an object should a drafter draw
all views necessary to clearly show all features of the object; usually 3
The scale 2=1 means..
double scale/ twice size
