PLTW Introduction to Engineering Design (IED) Final Exam
Study Guide 2026–2027 – Complete Questions and Correct
Detailed Answers for Engineering Design and CAD Concepts
Introduction:
This document contains a comprehensive PLTW IED final exam
study guide with complete questions and detailed answers covering
engineering design principles, CAD modeling, technical drawing,
reverse engineering, statistics, dimensioning, sketching, and
manufacturing concepts. It also includes key terminology,
engineering notebook practices, design process stages, technical
communication, and physical property analysis commonly assessed
in PLTW Introduction to Engineering Design courses.
The material is organized in a question-and-answer format to
support exam preparation and quick review of essential
engineering vocabulary and technical concepts. It is especially
useful for students preparing for final assessments, practice exams,
and engineering design coursework.
Exam Questions and Answers
A graph of vertical bars representing the frequency distribution of a
set of data is called --- correct precise answer ---Histogram
Collection of methods for planning experiments, obtaining data,
organizing, summarizing, and presenting, analyzing, interpreting,
and drawing conclusions based on data. --- correct precise answer -
--Statistics
,The _______________ is a measure of the spread of data values ---
correct precise answer ---Standard Deviation
A function that represents the distribution of variables as a
symmetrical bell-shaped graph. --- correct precise answer ---
Normal Distribution
The value that occurs most frequently in a given data set --- correct
precise answer ---Mode
The __________________ is the difference between the largest and
smallest values that occur in a set of data. --- correct precise
answer ---Range
A measure of center in a set of numerical data --- correct precise
answer ---Median
The digits in a decimal number that carry meaning contributing to
the precision or accuracy of the quantity --- correct precise answer
---Significant Digits
What is Central Tendency? --- correct precise answer ---It s the
Center of a distribution: Mean, Median or Mode.
,A full-scale working model used to test a design concept by making
actual observations and necessary adjustments. --- correct precise
answer ---Prototype
A measuring instrument having two adjustable jaws typically used
to measure distance or thickness --- correct precise answer ---
Calipers
What is the role of models in the design process? --- correct precise
answer ---Provides a visual for all to see and helps them to see the
viability of the idea
How can we use technology to make the design and manufacture of
a product more efficient and less prone to error? --- correct precise
answer ---Allows us to investigate the properties digitally before it
is built physically
What is the purpose of a portfolio? How do you decide what
information to include in a portfolio --- correct precise answer ---
The Purpose of a portfolio is to effectively communicate the details
of a project. Title page, working technical drawings and an
"exploded" presentation page with a parts list (i.e., whatever is
necessary to communicate all the details of a project)
, Physical Model --- correct precise answer ---A physical
representation of an object. Prototypes and appearance models are
physical models.
Model --- correct precise answer ---A visual, mathematical, or
three-dimensional representation in detail of an object or design,
often smaller than the original
Annotate --- correct precise answer ---To add explanatory notes to
a drawing
Component --- correct precise answer ---A part or element of a
larger whole
Scale Model --- correct precise answer ---An enlarged or reduced
representation of an object that is usually intended for study
purposes.
Geometric Constraint --- correct precise answer ---Constant, non-
numerical relationships between the parts of a geometric figure.
Examples include parallelism, perpendicularity, and concentricity.
Working Drawing --- correct precise answer ---Drawings that
convey all of the information needed to manufacture and assemble
a design
Study Guide 2026–2027 – Complete Questions and Correct
Detailed Answers for Engineering Design and CAD Concepts
Introduction:
This document contains a comprehensive PLTW IED final exam
study guide with complete questions and detailed answers covering
engineering design principles, CAD modeling, technical drawing,
reverse engineering, statistics, dimensioning, sketching, and
manufacturing concepts. It also includes key terminology,
engineering notebook practices, design process stages, technical
communication, and physical property analysis commonly assessed
in PLTW Introduction to Engineering Design courses.
The material is organized in a question-and-answer format to
support exam preparation and quick review of essential
engineering vocabulary and technical concepts. It is especially
useful for students preparing for final assessments, practice exams,
and engineering design coursework.
Exam Questions and Answers
A graph of vertical bars representing the frequency distribution of a
set of data is called --- correct precise answer ---Histogram
Collection of methods for planning experiments, obtaining data,
organizing, summarizing, and presenting, analyzing, interpreting,
and drawing conclusions based on data. --- correct precise answer -
--Statistics
,The _______________ is a measure of the spread of data values ---
correct precise answer ---Standard Deviation
A function that represents the distribution of variables as a
symmetrical bell-shaped graph. --- correct precise answer ---
Normal Distribution
The value that occurs most frequently in a given data set --- correct
precise answer ---Mode
The __________________ is the difference between the largest and
smallest values that occur in a set of data. --- correct precise
answer ---Range
A measure of center in a set of numerical data --- correct precise
answer ---Median
The digits in a decimal number that carry meaning contributing to
the precision or accuracy of the quantity --- correct precise answer
---Significant Digits
What is Central Tendency? --- correct precise answer ---It s the
Center of a distribution: Mean, Median or Mode.
,A full-scale working model used to test a design concept by making
actual observations and necessary adjustments. --- correct precise
answer ---Prototype
A measuring instrument having two adjustable jaws typically used
to measure distance or thickness --- correct precise answer ---
Calipers
What is the role of models in the design process? --- correct precise
answer ---Provides a visual for all to see and helps them to see the
viability of the idea
How can we use technology to make the design and manufacture of
a product more efficient and less prone to error? --- correct precise
answer ---Allows us to investigate the properties digitally before it
is built physically
What is the purpose of a portfolio? How do you decide what
information to include in a portfolio --- correct precise answer ---
The Purpose of a portfolio is to effectively communicate the details
of a project. Title page, working technical drawings and an
"exploded" presentation page with a parts list (i.e., whatever is
necessary to communicate all the details of a project)
, Physical Model --- correct precise answer ---A physical
representation of an object. Prototypes and appearance models are
physical models.
Model --- correct precise answer ---A visual, mathematical, or
three-dimensional representation in detail of an object or design,
often smaller than the original
Annotate --- correct precise answer ---To add explanatory notes to
a drawing
Component --- correct precise answer ---A part or element of a
larger whole
Scale Model --- correct precise answer ---An enlarged or reduced
representation of an object that is usually intended for study
purposes.
Geometric Constraint --- correct precise answer ---Constant, non-
numerical relationships between the parts of a geometric figure.
Examples include parallelism, perpendicularity, and concentricity.
Working Drawing --- correct precise answer ---Drawings that
convey all of the information needed to manufacture and assemble
a design
