PLTW - IED Final Exam(100% correct with complete solutions)
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PLTW - IED
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PLTW - IED
Innovation
An improvement of an existing technological product, system, or method of doing something.
Invention
A new product, system, or process that has never existed before, created by study and experimentation.
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Design Brief
A written plan that identifies a pro...
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PLTW - IED Final Exam
Innovation - Answer An improvement of an existing technological product, system, or
method of doing something.
Invention - Answer A new product, system, or process that has never existed before,
created by study and experimentation.
Design Brief - Answer A written plan that identifies a problem to be solved, its criteria,
and its constraints. The design brief is used to encourage thinking of all aspects of a
problem before attempting a solution.
Design Process - Answer A systematic problem-solving strategy, with criteria and
constraints, used to develop many possible solutions to solve a problem or satisfy
human needs and wants and to winnow (narrow) down the possible solutions to one
final choice.
Construction Line - Answer Thin lines that serve as guides while sketching or drawing.
Hidden Line - Answer A line type that represents an edge that is not directly visible,
because it is behind or beneath another surface.
Isometric Sketch - Answer A form of pictorial sketch in which all three drawing axes
form equal angles of 120 degrees with the plane of projection.
Multiview Drawings - Answer Views of an object projected onto two or more
orthographic planes.
Object Line - Answer A heavy solid line used on a drawing to represent the outline of an
object.
Oblique Sketch - Answer A type of sketch involving a combination of a flat, orthographic
front with depth lines receding at a selected angle, usually 45 degrees.
Orthographic Projection - Answer A method of representing three-dimensional objects
on a plane having only length and breadth. Also referred to as Right Angle Projection.
Perspective Sketch - Answer A form of pictorial sketch in which vanishing points are
used to provide the depth and distortion that is seen with the human eye. Perspective
drawings can be drawn using one, two, and three vanishing points.
Shading - Answer The representation of light and shade on a drawing or map.
Technical Working Drawing - Answer A drawing that is used to show the material, size,
and shape of a product for manufacturing purposes.
, Tone - Answer The general effect of color or of light and shade in a picture.
ANSI - Answer American National Standards Institute: A private, non-profit organization
that coordinates the development and use of voluntary consensus standards in the
United States.
Dimension Lines - Answer Lines that are thin lines capped with arrowheads, which may
be broken along their length to provide space for the dimension numerals.
Extension Lines - Answer Thin lines used to establish the extent of a dimension.
Extension lines begin with a short space from the object and extend to about .125
inches past the last dimension line. Extension lines may cross object lines, center lines,
hidden lines, and other extension lines, but may not cross dimension lines.
International Organization for Standardization (ISO) - Answer A non-governmental
global organization whose principal activity is the development of technical standards
through consensus.
Mean - Answer The average or central value of a set of quantities.
Median - Answer Referring to the middle term or mean of the middle two terms of a
series of values arranged in order of magnitude.
Mode - Answer The value that occurs most frequently in a given data set.
Numeric Constraint - Answer A number value, or algebraic equation that is used to
control the size or location of a geometric figure.
Annotate - Answer To add explanatory notes to.
Assembly Drawing - Answer A drawing that shows the various parts of an item when
assembled.
Geometric Constraint - Answer Constant, non-numerical relationships between the parts
of a geometric figure. Examples include parallelism, perpendicularity, and concentricity.
Mock-up - Answer Also referred to as an Appearance Model. A model or replica of a
machine or structure for instructional or experimental purposes.
Model - Answer A visual, mathematical, or three-dimensional representation in detail of
an object or design, often smaller than the original. A model is often used to test ideas,
make changes to a design, and to learn more about what would happen to a similar,
real object.
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