This is PLTW Introduction to Engineering Design (IED) final exam, also known as the End of Course
(EOC) assessment, typically covers nine core units that test both theoretical knowledge and practical
CAD skills. Below is a breakdown of the key descriptions and topics you should focus on for your
study guide.
1. The Engineering Design Process (Units 1 & 9)
This section focuses on the systematic strategy used to develop solutions to problems.
Design Process Steps: Defining the problem, brainstorming, researching, developing a proposal,
prototyping, testing, and communicating results.
Design Brief: A written plan identifying the problem, criteria (requirements), and constraints
(limitations like time or cost).
Decision Matrix: A tool used to rank different solution alternatives based on a set of criteria.
Product Life Cycle: The stages a product goes through from concept and use to eventual withdrawal.
2. Technical Sketching and Visualization (Unit 2)
This unit accounts for approximately 22% of the exam.
Line Conventions:
Construction Line: Light lines used as guides.
Object Line: Heavy, solid lines representing visible outlines.
Hidden Line: Dashed lines representing edges not directly visible.
Center Line: Defines the center of arcs or symmetrical parts.
Sketch Types:
1
, Isometric: Pictorial sketch where axes form 120-degree angles.
Oblique: Combines a flat front view with depth lines receding at an angle (usually 45°).
Perspective: Uses vanishing points to mimic how the human eye sees depth.
Multiview (Orthographic): Shows two or more 2D views of an object (front, top, right side).
3. Measurement and Statistics (Unit 3)
Precision vs. Accuracy: Accuracy is how close a measurement is to the true value; precision is how
repeatable the measurement is.
Tools: Proficiency in reading a ruler and dial calipers is essential.
Statistics: Calculating Mean (average), Median (middle value), Mode (most frequent), and Standard
Deviation.
4. CAD Modeling and Physical Properties (Units 4, 5, & 8)
CAD Functions: Understanding when to use tools like Extrude (pushing a 2D shape into 3D),
Revolve (rotating a profile around an axis), and Fillet (rounding edges).
Constraints:
Geometric: Non-numerical relationships like parallelism or perpendicularity.
Numeric: Specific size or location values (dimensions).
Physical Properties: Using material density and volume to determine a part’s mass, weight, and
center of gravity.
5. Reverse Engineering and Documentation (Units 6 & 7)
Reverse Engineering: Taking a product apart to analyze its internal workings for improvement or
documentation.
Functional Analysis: Using a Black Box model to identify the inputs and outputs of a system without
knowing the internal processes yet.
Annotation: Rules for dimensioning, including hole notes (blind vs. through holes) and thread notes.
Advanced Views: Using Section Views to show internal features and Auxiliary Views to show the true
size of angled surfaces.
Answer
The PLTW IED final exam primarily evaluates your mastery of the Engineering Design
Process, technical sketching (Isometric/Orthographic), CAD software proficiency (Autodesk
Inventor), and statistical analysis of measurements.
2
, Quiz_________________?
. An iterative decision-making process that produces plans by which resources are
converted into products or systems that meet human needs and wants or solve problems.
2. A plan or drawing produced to show the look and function or workings of something
before it is built or made. 3. A decorative pattern. -
ANSWER✅
Design
Quiz_________________?
(5 x 12) + 6.5 = 66.5 inches -
ANSWER✅
5 ft - 6 ½ in. to inches
Quiz_________________?
1. A limit to a design process. Constraints may be such things as appearance, funding, space,
materials, and human capabilities. 2. A limitation or restriction. -
ANSWER✅
Constrait
Quiz_________________?
1.15 x 12 = 13.8 in -
ANSWER✅
1.15 feet to inches.
3
, Quiz_________________?
1.7 x 36 = 253 -
ANSWER✅
1.7 yards to inches
Quiz_________________?
3D point defining the geometric center of a solid. -
ANSWER✅
Centroid
Quiz_________________?
67.5 x .393701 = 26.5748175 in -
ANSWER✅
67.5 cm to inches
Quiz_________________?
9.25 x 3 = 27.75 feet -
ANSWER✅
9.25 yards to feet
Quiz_________________?
A 3D point where the total weight of the body may be considered to be concentrated. -
ANSWER✅
Center of Gravity
4
(EOC) assessment, typically covers nine core units that test both theoretical knowledge and practical
CAD skills. Below is a breakdown of the key descriptions and topics you should focus on for your
study guide.
1. The Engineering Design Process (Units 1 & 9)
This section focuses on the systematic strategy used to develop solutions to problems.
Design Process Steps: Defining the problem, brainstorming, researching, developing a proposal,
prototyping, testing, and communicating results.
Design Brief: A written plan identifying the problem, criteria (requirements), and constraints
(limitations like time or cost).
Decision Matrix: A tool used to rank different solution alternatives based on a set of criteria.
Product Life Cycle: The stages a product goes through from concept and use to eventual withdrawal.
2. Technical Sketching and Visualization (Unit 2)
This unit accounts for approximately 22% of the exam.
Line Conventions:
Construction Line: Light lines used as guides.
Object Line: Heavy, solid lines representing visible outlines.
Hidden Line: Dashed lines representing edges not directly visible.
Center Line: Defines the center of arcs or symmetrical parts.
Sketch Types:
1
, Isometric: Pictorial sketch where axes form 120-degree angles.
Oblique: Combines a flat front view with depth lines receding at an angle (usually 45°).
Perspective: Uses vanishing points to mimic how the human eye sees depth.
Multiview (Orthographic): Shows two or more 2D views of an object (front, top, right side).
3. Measurement and Statistics (Unit 3)
Precision vs. Accuracy: Accuracy is how close a measurement is to the true value; precision is how
repeatable the measurement is.
Tools: Proficiency in reading a ruler and dial calipers is essential.
Statistics: Calculating Mean (average), Median (middle value), Mode (most frequent), and Standard
Deviation.
4. CAD Modeling and Physical Properties (Units 4, 5, & 8)
CAD Functions: Understanding when to use tools like Extrude (pushing a 2D shape into 3D),
Revolve (rotating a profile around an axis), and Fillet (rounding edges).
Constraints:
Geometric: Non-numerical relationships like parallelism or perpendicularity.
Numeric: Specific size or location values (dimensions).
Physical Properties: Using material density and volume to determine a part’s mass, weight, and
center of gravity.
5. Reverse Engineering and Documentation (Units 6 & 7)
Reverse Engineering: Taking a product apart to analyze its internal workings for improvement or
documentation.
Functional Analysis: Using a Black Box model to identify the inputs and outputs of a system without
knowing the internal processes yet.
Annotation: Rules for dimensioning, including hole notes (blind vs. through holes) and thread notes.
Advanced Views: Using Section Views to show internal features and Auxiliary Views to show the true
size of angled surfaces.
Answer
The PLTW IED final exam primarily evaluates your mastery of the Engineering Design
Process, technical sketching (Isometric/Orthographic), CAD software proficiency (Autodesk
Inventor), and statistical analysis of measurements.
2
, Quiz_________________?
. An iterative decision-making process that produces plans by which resources are
converted into products or systems that meet human needs and wants or solve problems.
2. A plan or drawing produced to show the look and function or workings of something
before it is built or made. 3. A decorative pattern. -
ANSWER✅
Design
Quiz_________________?
(5 x 12) + 6.5 = 66.5 inches -
ANSWER✅
5 ft - 6 ½ in. to inches
Quiz_________________?
1. A limit to a design process. Constraints may be such things as appearance, funding, space,
materials, and human capabilities. 2. A limitation or restriction. -
ANSWER✅
Constrait
Quiz_________________?
1.15 x 12 = 13.8 in -
ANSWER✅
1.15 feet to inches.
3
, Quiz_________________?
1.7 x 36 = 253 -
ANSWER✅
1.7 yards to inches
Quiz_________________?
3D point defining the geometric center of a solid. -
ANSWER✅
Centroid
Quiz_________________?
67.5 x .393701 = 26.5748175 in -
ANSWER✅
67.5 cm to inches
Quiz_________________?
9.25 x 3 = 27.75 feet -
ANSWER✅
9.25 yards to feet
Quiz_________________?
A 3D point where the total weight of the body may be considered to be concentrated. -
ANSWER✅
Center of Gravity
4
