I.E.D. Final Exam Part C (Fall 2015)

Fillet and chamfer are edge treatments that can be applied to a 3D solid model. A fillet is a rounded edge, typically used to smooth out sharp corners, while a chamfer is a beveled edge, often used to create a flat surface or to break sharp edges. These features can be added to a 3D solid model to enhance its aesthetic appeal or to improve its functionality.

The sketch type shown to the right is a two-point perspective sketch. In this type of sketch, two vanishing points are used to create the illusion of depth and three-dimensionality. The lines in the sketch converge towards these two points, giving the drawing a realistic and dynamic appearance. This technique is commonly used in architectural and interior design drawings to accurately represent objects and spaces in a visually appealing way.

The given answer, mathematical modeling, refers to the process of representing real-world phenomena using mathematical equations and formulas. It involves creating mathematical models to understand, analyze, and predict the behavior of complex systems or processes. This approach is commonly used in various fields such as physics, engineering, economics, and biology to study and solve problems by using mathematical tools and techniques.

Mass, volume, and density are all characteristics that describe the physical properties of a substance. Physical properties are measurable attributes of matter that can be observed or quantified without changing the substance's chemical composition. These properties provide information about the behavior and characteristics of the substance, such as its size, shape, and how it interacts with other substances. Therefore, the correct answer is physical properties.

The hand-written messages on the fire truck sketch are examples of annotations. Annotations are notes or comments added to a document or drawing to provide additional information or clarification. In this case, the messages on the sketch are likely providing instructions or explanations about specific features or design elements of the fire truck.

Balance is a condition in which different elements are equal or in the correct proportion. In the context of design or visual arts, balance refers to the distribution of visual weight in a composition. It involves arranging elements such as colors, shapes, and textures in a way that creates a sense of stability and harmony. When elements are balanced, they create a pleasing and harmonious visual experience for the viewer.

Emphasis refers to the special importance, value, or prominence given to something. It is a way of highlighting or focusing on a particular aspect or idea, often done through the use of emphasis techniques such as repetition, contrast, or placement. Emphasis helps to draw attention, create impact, and convey the significance of a specific element within a context or communication.

Offset work planes are created parallel to an existing surface and at a specified distance away from that surface. These work planes are used to create geometry that is offset or parallel to the existing surface. They are commonly used in CAD software to create features or components that need to be located at a specific distance from a reference surface. By using offset work planes, designers can easily create geometry that is aligned and positioned correctly relative to the existing surface.

When a group of parts is pre-assembled and brought into a larger group of parts as a single unit, they are referred to as subassemblies.

An invention refers to a totally new product or an original idea. It is the creation of something that has never existed before. This term is used to describe the process of bringing a novel concept into reality. It involves designing, developing, and producing a new product or idea that solves a problem or fulfills a need. Inventions are often protected by patents to ensure that the creator has exclusive rights to their creation.

The given statements represent constraints in the Design Brief. Constraints are limitations or restrictions that must be considered during the design process. In this case, the constraints include the weight limit of 3.25 lbs, the requirement for the design to withstand running at 2750 rpms, and the need for corrosion resistance. These constraints will guide the design process and help determine the specifications and parameters of the final product.

A regularly recurring sequence of events or actions is referred to as rhythm. Rhythm is the pattern or flow created by the repetition of elements in a sequence. It can be found in various aspects of life, such as music, poetry, dance, and even natural phenomena. Rhythm provides a sense of order, continuity, and predictability, allowing for a harmonious and organized experience.

An "insert constraint" would be the best choice for placing a pin inside a hole. This constraint ensures that the pin is inserted fully and securely into the hole, preventing any movement or misalignment. It ensures a tight fit between the pin and the hole, creating a stable and reliable connection.

The correct answer is Occupational Safety and Hazard Association (OSHA). OSHA is a government organization that aims to assure the safety and health of American workers by setting and enforcing standards. OSHA's mission aligns perfectly with the given description, making it the most suitable choice among the options provided.

A decision matrix is used to compare design solutions against one another using specific criteria that are often based on project requirements. It allows for a systematic evaluation of different options by assigning weights to criteria and scoring each option accordingly. This helps in objectively assessing the strengths and weaknesses of each solution, facilitating the decision-making process and ultimately selecting the most suitable design solution.

Research and development is the correct answer because it refers to the department within a company that is responsible for developing new products or redesigning existing products. This department conducts research to identify market needs, conducts experiments and tests to develop new products, and works on improving existing products to meet customer demands. The research and development department plays a crucial role in innovation and ensuring the company stays competitive in the market.

Sketching is the correct answer because it refers to the process of drawing lines, circles, arcs, and rectangles to create the basic profile of features in a computer model. This initial sketch defines the approximate size and shape of the part before further modifications or additions are made. Dimensioning is the process of adding precise measurements to the sketch, while profiling refers to creating a profile or outline of a feature. Extruding is the process of creating a 3D shape by stretching or pulling a 2D shape along a path.

Cost analysis is the data collection process used to determine how much money is needed to design, manufacture, package, and distribute a product. It involves analyzing all the costs associated with each stage of the product's life cycle, including materials, labor, overhead, and other expenses. By conducting a cost analysis, companies can accurately estimate the total cost of producing and delivering a product, which is crucial for budgeting, pricing, and decision-making purposes.

Circles should have a center mark and are dimensioned with a leader line to identify the diameter. The center mark indicates the exact center of the circle, while the diameter is a straight line passing through the center and connecting two points on the circumference.

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Radial symmetry refers to the arrangement of body parts around a central axis, where the parts are arranged in a circular or radial pattern. This means that if an organism is divided along any plane passing through the central axis, the resulting halves will be mirror images of each other. In contrast, asymmetry refers to the absence of any symmetry, rhythm refers to a repeated pattern, and proportion refers to the relationship between different parts of an object.

A detail view would be the most appropriate to use if an important feature of a part was too small and complex relative to the total part size. A detail view allows for a magnified and enlarged representation of a specific area or feature of a part, providing a clear and detailed view of the small and complex feature. This helps to ensure that the important feature is clearly visible and accurately represented, even if it is relatively small in comparison to the overall part size.

The American National Standards Institute (ANSI) is a private, non-profit organization that coordinates the development and use of voluntary consensus standards in the United States. ANSI works with industry experts, government agencies, and other stakeholders to develop and maintain standards that promote safety, efficiency, and innovation in various sectors. These standards are voluntary but often adopted by government bodies and organizations to ensure quality and interoperability. OSHA is a separate government agency responsible for ensuring safe and healthy working conditions, while ISO is an international organization that develops and publishes international standards. ASME is a professional association focused on mechanical engineering.

Circles and arcs that share the same center point are concentric. This means that they have the same center and different radii. The term "concentric" is derived from the Latin word "concentricus," which means having a common center. In geometry, concentric circles and arcs are often used to represent different levels or layers of a shape or object. They do not intersect each other but are positioned one inside the other.

The term "value" refers to the lightness or darkness of a color. It describes the relative brightness or intensity of a color in comparison to a scale that ranges from white to black. Value plays a crucial role in creating contrast, depth, and dimension in artwork. By manipulating the value of colors, artists can create different shades and tones, which can evoke various emotions and add visual interest to their compositions.

A cutting plane is used to create a section view in an orthographic drawing. A section view is a representation of an object as if it has been sliced in half, allowing the viewer to see the internal features and details of the object. By using a cutting plane, the section view can be created by showing the cut surface and the resulting internal features of the object. This view is commonly used to highlight specific areas or components of an object that may not be easily visible in other views.

A design brief typically includes several key components such as the problem and design statement, constraints, and information about the client and target consumer. However, the solution itself is not typically included in a design brief. The design brief is meant to outline the problem or challenge that needs to be addressed, as well as provide information about the client and target consumer. The solution is usually developed through the design process based on the information provided in the design brief.

The section lines in regions A and C in the front view of the drawing indicate that the cutting plane only intersects or contacts material in those specific regions. This means that the cutting plane does not intersect or contact material in region B.

Figure 3 represents the most complete and appropriately dimensioned multi-view drawing because it includes all necessary views (top, front, and right side) of the object. Additionally, it provides clear and accurate dimensions for each view, allowing for a comprehensive understanding of the object's shape and size.

A section view is a type of view that is used to display the internal or hidden features of an object. It is created by cutting through the object and showing the cross-section, allowing the viewer to see the internal details that would not be visible in a regular view. This type of view is commonly used in engineering and technical drawings to provide a clearer understanding of the object's construction and components.

Conceptual modeling is a type of modeling that helps to define the scope and limitations of the design problem before significant time is invested in the development of a prototype. It involves creating a high-level representation of the problem domain, focusing on the concepts, relationships, and constraints involved. This allows for a better understanding of the problem and helps in making informed decisions about the design approach. Computer modeling, graphical modeling, and mathematical modeling may also be used in the design process, but they do not specifically focus on defining the scope and limitations of the problem like conceptual modeling does.

A section view would be necessary when the interior parts of an object are complex and not clearly visible from any view. This view allows us to cut through the object and show a cross-section, revealing the internal details that are otherwise hidden. It helps in understanding the internal structure and components of the object, especially when they are intricate and difficult to visualize from the exterior views.

Arcs should have a center mark and are dimensioned with a leader line to identify the radius. The center mark is used to indicate the center point of the arc, while the radius is the distance from the center to any point on the arc. By including the center mark and dimensioning the radius with a leader line, the arc can be accurately identified and measured.

An auxiliary view is a projection view that is used to show the true shape and size of an inclined surface. It is created by projecting the inclined surface onto a plane that is perpendicular to it. This allows for a more accurate representation of the surface, especially when it is not easily visible or understandable in other views. Therefore, an auxiliary view would be needed to show the actual shape and size of an inclined surface.

An auxiliary view is a view that is used to show features located on an angled or inclined surface in their true dimensions. It is a useful tool in engineering and technical drawing, as it allows for a more accurate representation of the object's features. Unlike a section view, which cuts through the object to show its internal features, an auxiliary view focuses on a specific surface and shows it in its true shape and size. Therefore, an auxiliary view is the correct answer in this case.

Hatch marks or section lines in an orthographic drawing are used to show the material of an object. By using different patterns or styles of hatch marks, different materials can be represented, such as wood, metal, or plastic. This helps the viewer of the drawing understand the composition of the object and how it would be constructed in real life.