Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

PLTW IED Final Exam Study Guide| Complete Questions and Answers| A+ Rated Solution Guide|, Exams of Engineering

PLTW IED Final Exam Study Guide| Complete Questions and Answers| A+ Rated Solution Guide| Updated 2024-2025 How might we create the best possible solution to a problem? Engineers try to think "outside the box" in order to solve new problems or find ways to improve current solutions. What is the most effective way to generate potential solutions to a problem? How many alternate solutions should you generate? Brainstorming with a group, research and testing possible solutions What is an engineer? What types of work do engineers do? Engineering is the application of mathematics and scientific principles to better or improve life.An engineer is a person who is trained in and uses technological and

Typology: Exams

2023/2024

Available from 06/11/2024

paul-marks
paul-marks 🇺🇸

3.8

(19)

823 documents

1 / 39

Toggle sidebar

Related documents


Partial preview of the text

Download PLTW IED Final Exam Study Guide| Complete Questions and Answers| A+ Rated Solution Guide| and more Exams Engineering in PDF only on Docsity! PLTW IED Final Exam Study Guide| Complete Questions and Answers| A+ Rated Solution Guide| Updated 2024-2025 How might we create the best possible solution to a problem? Engineers try to think "outside the box" in order to solve new problems or find ways to improve current solutions. What is the most effective way to generate potential solutions to a problem? How many alternate solutions should you generate? Brainstorming with a group, research and testing possible solutions What is an engineer? What types of work do engineers do? Engineering is the application of mathematics and scientific principles to better or improve life.An engineer is a person who is trained in and uses technological and scientific knowledge to solve practical problems. Research, Develop, Design, Supervise, Manage, Production and Construction,operations,plant management, and sales Why Keep an Engineering Notebook? An engineering notebook is recognized as a legal document that is used in patent activities to... Prove the origin of an idea that led to a solution Prove when events or ideas occurred Prove diligence in turning the idea into a solution Prove when an idea became a working solution ("reduced to practice") What are the 4 best Practices for the Engineering Notebook? Be Neat, be Accurate, be Legible, be Thorough Explain the concept of proportion. Paying close attention to the underlying basic shapes and the relative proportions of various features of the object will allow you to more accurately reflect the true shapes and proportions of the object in your sketch Engineering Notebook An engineering notebook is a book in which an engineer will formally document, in chronological order, all of his/her work that is associated with a specific design project. Prototype A full-scale working model used to test a design concept by making actual observations and necessary adjustments. Research The systematic study of materials and sources in order to establish facts and reach new conclusions. Order of Design Process Define Problem Generate Concepts Develop a Solution Construct and test Prototype Evaluate Solution Present Solution Read through the Engineering Disciplines Power Point and write Each Engineering Field mentioned and one sentence describing what that Engineering Field does. Chemical Engineering, Civil and Construction Engineering, Electrical and Electronics Engineering, Mechanical Engineering, Aeronautical Engineering, Agricultural Engineering, Architectural Engineering, Automotive Engineering, Biomedical Engineering, Computer Engineering, Industrial Engineering, Manufacturing Engineering Center Line A line which defines the center of arcs, circles, or symmetrical parts Extension Line Line which represents where a dimension starts and stops. Dimension Line A line which represents distance Object Line A heavy solid line used on a drawing to represent the outline of an object. Construction Line Line lightly drawn lines to guide drawing other lines and shapes. Hidden Line A line type that represents an edge that is not directly visible Orthographic Projection A method of representing three-dimensional objects on a plane having only length and breadth. Also referred to as Right Angle Projection Multi-View Drawing A drawing which contains views of an object projected onto two or more orthographic planes. Oblique Sketch A form of pictorial in which an object is represented as true width and height, but the depth can be any size and drawn at any angle. Perspective Sketch How can statistical and analyzed data be used to inform, justify, and validate a design or process? Statistics are commonly used in manufacturing processes to control and maintain quality. A statistical analysis is used to determine measures of central tendency and variation of the data. What is dimensional analysis and how can it help solve problems involving quantities? Preforming a dimensional analysis on a part will assure that all needed dimensions to create the part have been included. This will insure the part is made correctly. Why do engineers generally adhere to a set of dimensioning standards and guidelines? In manufacturing, a part must be dimensioned fully and correctly and to the proper precision. Otherwise, the part may not function properly or may not fit into an assembly as intended. Dimensioning errors can lead to a delay in production time, increased design and manufacturing costs, and a potentially unsafe product. 9.25 yards to feet 9.25 x 3 = 27.75 feet 1.15 feet to inches. 1.15 x 12 = 13.8 in 5 ft - 6 ½ in. to inches (5 x 12) + 6.5 = 66.5 inches 1.7 yards to inches 1.7 x 36 = 253 67.5 cm to inches 67.5 x .393701 = 26.5748175 in Why would you have to know how to convert measurements when looking at a technical drawing? If they are not in the units preferred by the engineer, they will need to change them Why is placement of your dimensions so important? So they can be read clearly without confusion How can you use units help you solve a problem? If the Units are all the same communication of size and shape are understood with out confusion Why do designers need to fully dimension a part? A fully dimension part is required to communicate clearly how the part is to be constructed. What does it mean when a sketch is over dimensioned? A sketch is over dimensioned when the same measurement/dimension is on 2 or more of the views: such as the over all width is placed in both the front and top views. This can cause confusion and increase the probability of the part being constructed incorrectly A graph of vertical bars representing the frequency distribution of a set of data is called Histogram Collection of methods for planning experiments, obtaining data, organizing, summarizing, and presenting, analyzing, interpreting, and drawing conclusions based on data. 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 A physical representation of an object. Prototypes and appearance models are physical models. Model A visual, mathematical, or three-dimensional representation in detail of an object or design, often smaller than the original Annotate To add explanatory notes to a drawing Component A part or element of a larger whole Scale Model An enlarged or reduced representation of an object that is usually intended for study purposes. Geometric Constraint Constant, non-numerical relationships between the parts of a geometric figure. Examples include parallelism, perpendicularity, and concentricity. Working Drawing Drawings that convey all of the information needed to manufacture and assemble a design Mathematical Modeling The process of choosing and using appropriate mathematics and statistics to analyze empirical situations, To understand them better, and to improve decisions. Solid Modeling A type of 3D CAD modeling that represents the volume of an object, not just its lines and surfaces. What are physical properties and why are they important to the design of a product? The material it is made of, its mass, density, etc. What advantage do Computer Aided Design and Drafting (CAD) provide over traditional paper and pencil design? The advantage of CAD is that it is easily modified, and reproducible. Usually faster to produce. Can be looked at in 3 dimensions and seen at different angles How does the material chosen for a product impact the design of the product? It determines the products weight and density, its durability, etc. Acute Triangle A triangle that contains only angles that are less than 90 degrees Center of Gravity A 3D point where the total weight of the body may be considered to be concentrated. Centroid 3D point defining the geometric center of a solid. Tangent A straight or curved line that intersects a circle or arc at one point only. What do you need to know in order to perform a physical property analysis? What material it is made of and dimensions of the object. Why is it important to perform a physical property analysis prior to producing a part? In order to find the weight and density Why is it important to understand the mathematics used in physical property analysis? The Mathematics is important for you to determine the volume, density, mass, weight and size of the object you are developming. A work point is an independent entity whose location is defined in Space Work points may be placed or projected onto Work points may be placed or projected onto circles Work points can be constrained to the ________ points of arcs, circles, and ellipses. center work axis is a line that extends forever in __Two___ directions. Work axes are useful for locating the __Center__of a _Hole__ or __Cylinder__, are used in the creation of Revolved_ features, and may be _Constrained_ to in assembly models Work Plane are continuous ______Two Dimensional planes that can be used to establish Sketch_ planes. __Assembly__ constraints can also be applied to work planes. Why do engineers perform reverse engineering on products? Engineers preform reverse engineering on an item to learn how it operates and how internal parts were constructed. Documentation Discovery Investigation Product Improvement Asymmetry Symmetry in which both halves of a composition are not identical. Also referred to as informal balance. Symmetry The correspondence in size, shape, and relative position of parts on opposite sides of a median line or about a central axis. Also referred to as formal balance. Proportion The relationship of one thing to another in size, amount, etc. Size or weight relationships among structures or among elements in a single structure Balance A condition in which different elements are equal or in the correct proportions. There are three types of visual balance: symmetry, asymmetry, and radial Form Having the three dimensions of length, width, and depth. Also referred to as a solid. The organization, placement, or relationship of basic elements, as volumes or voids in sculptures to as to produce a coherent image Color Elements of design: Color, value, form, shape, texture, line, point, balance; symmetry, radial, and asymmetry, emphasis, contrast, rhythm, proportion, unity, and economy How are principles and elements of design used with engineering practice to develop a successful product? They are incorporated into the Visual, Functional and Structural Analysis to develop a product that is not only aesthetically pleasing but also economical reproducible that solves the problem. Why do engineers need to understand the design principles and elements when designing or innovating a produce? Engineers use Color, value, form, shape, texture, line, point, balance; symmetry, radial, and asymmetry, emphasis, contrast, rhythm, proportion, unity, and economy to make it as aesthetically pleasing, while still being functional, as possible Describe the process of reverse engineering. Reverse engineering (RE) is the process of taking something apart and analyzing its workings in detail, usually with the intention of understanding its structure, function, and operation. A system input/output model is used in unit 6 Functional Analysis helps to determine what about a product we are Reengineering/Innovating? A black box systems model is used to identify what goes into and out of the product in order to make it work as a system.The "black box" is used to represent the product's internal components or processes, which are deemed unknown at this point. Describe how important it is to have good interpersonal communication skills in a technically related field, such as engineering and design. You must be able to communicate clearly and succinctly with the people with whom you work in-order for them to understand how your design is going to solve the problem at hand. Arcs and circles are dimensioned in views that show the arc or circle Arcs are dimensioned with a __ __ to identify the ___radius ___; in some cases, a center mark is included. Leaderline Circles should have a _____ mark and are dimensioned with a __ leader ___ to identify the ____ diameter ___. Center What is an offset and how is it used? An offset is used when constraining two parts and you don't want to constrain them completely flush (you might offset one part so that it sticks out from another part). What is the difference between a mate and flush constraint? Mate: two surfaces face to face. Flush: two surfaces side by side or two edges side by side. What is a subassembly? How is it useful in the assembly of a complex product that involves multiple parts? A subassembly is when some of the parts of a product are put together, and then those subassemblies are put together in one total assembly Manufacturing costs Company standards Manufacturing capabilities Safety Importance of Technical Writing: is a type of expository writing that is used to _____ information to a particular _audience______ for a particular _technical______or _business______ purposes Convey Technical reports communicate technical information and conclusions about projects to customers managers, legal authority figures, and other engineers. It contains the following sections: Technical reports communicate technical information and conclusions about projects to customers, managers, legal authority figures, and other engineers. Front Matter: Title Page, Abstract, Table of Contents, List of Tables & Figures Text: Summary, Introduction, Methods, Assumptions, and procedures, Results & Discussion, conclusion, References Back Matter: Appendices, List of Symbols, Abbreviations and Acronyms Aligned Dimension A system of dimensioning which requires all numerals, figures, and notes to be aligned with the dimension lines so that they may be read from the bottom (for horizontal dimensions) and from the right side (for vertical dimensions). Baseline Dimensioning System Dimensioning in which all dimensions are placed from a datum and not from feature to feature. Chain Dimensioning Also known as point-to-point dimensioning where dimensions are established from one point to the next. Limit Dimensions The largest and smallest possible boundaries to which a feature may be made as related to the tolerance of the dimension. Location Dimension A location dimension that defines the relationship of features of an object. Reference Dimension A dimension, usually without a tolerance, used for information purposes only. A reference is a repeat of a given dimension or established from other values shown on a drawing. Reference dimensions are enclosed in ( ) on the drawing. Datum Dimension A dimensioning system where each dimension originates from a common surface, plane, or axis. Also known as baseline dimensioning. Undirectional Dimension A tolerance in which variation is permitted in both directions from the specified dimension. Tolerance The acceptable amount of dimensional variation that will still allow an object to function correctly.. Nominal Size A view that is used to show features that is located on an inclined surface in true size and shape. Section Line Thin lines used in a section view to indicate where the cutting plane line has cut through material. Broken-Out Section A section of an object broken away to reveal an interior feature for a sectional drawing Working Drawings Drawings that convey all of the information needed to manufacture and assemble a design. Full Section A sectional drawing based on cutting through a plane line that extends completely through an object Detail view A view that is used to show a magnified view of features that are too small to adequately specify in another view. Blind Hole A hole that does not go completely through the work piece Taper Gradual diminution of width or thickness in an elongated object Counterbore A cylindrical recess around a hole, usually to receive a bolt head or nut Tapped Holes has internal threads Countersink A conical-shaped recess around a hole, often used to receive a tapered screw. Phantom Line A line used to show the alternate positions of an object or matching part without interfering with the main drawing. Exploded Assembly An assembly drawing in which parts are moved out of position along an axis so that each individual part is visible Ratio The quantitative relation between two amounts showing the number of times one value contains or is contained within the other. Rib A relatively thin flat member acting as a brace support. Also called a web. Numeric Constraint A number value or algebraic equation that is used to control the size or location of a geometric figure. Parameter A property of a system whose value determines how the system will behave. Parametric Modeling A CAD modeling method that uses parameters to define the size and geometry of features and to create relationships between features. Changing a parameter value updates all related features of the model at once.