Normally a view is replaced with the fullsection view. The engineering drawing, on the other hand, is not subtle, or abstract. May, 20 sectional views 5full section in a full section, the cutting plane linepasses fully through the part. Sacramento city college engineering design technology. An engineering drawing often needs to show features that we cant see because they are inside the object. If the thing we are drawing is too complicated for this method. Be sure to also read the article on sections at this link sections and section views on engineering drawings. Pdf created with fineprint pdffactory pro trial version. The result is called a front section, or front view in section, since it replaces the front view in the drawing. A half sectional view is preferred for symmetrical objects. Sectional views 5full section in a full section, the cutting plane linepasses fully through the part. The gsfc engineering drawing standards manual is the official source for the requirements and interpretations to be used in the development and presentation of engineering drawings and related documentation for the gsfc. Jan 20, 2014 objectives what are sectional views why do we draw sectional views sections and cutting plane lines hidden lines in sectional views lines behind the cutting plane section lining practices.
The following slides will help show the several methods or types of section views. Fundamentals of drafting orthographic projection with sectional views objectives. They are introduced to standard paper sizes and drawing view conventions, which are major components of the. Engineering drawing tutorialsorthographic and sectional views t 11. Fundamentals of drafting orthographic projection with. Apr 27, 2016 engineering drawing tutorials orthographic drawing with vertical section t 11. The arrows at the ends of cuttingplane line point in the direction of sight for front section. They are introduced to the american national standards institute ansi y14. An engineering drawing is a drawing or a set of drawings that communicates an idea, design, schematic, or model. Contents of the lecture shape description shape generation sectional views auxiliary views. These views assume that a cutting plane has removed portions of the object represented by the drawing, displaying the appropriate section of the interior. The following texts are the property of their respective authors and we thank them for giving us the opportunity to share for free to students, teachers and users of the web their texts will used only for illustrative educational and scientific purposes only.
Engineering drawing, orthographic projection, sectional view. The topics covered include the multiview system of drawing, selection, and arrangement of orthographic views, auxiliary. Pdf engineering drawing 2 let 219 types of sectional views. Aligned elements in full and sectional views in full views, as well as in sectional views, certain violations of the rules of true projection are accepted as a good practice because they add to the clearness of the drawing. An engineering drawing is a means of clearly and concisely communicating all of the. This view will show detail that is hidden inside the part or assembly in order to give dimensional information. If two or more parts are included within the same sectional view, each part must have. You can use this form to make your own production drawings for class. To extend the principle of orthographic projection for sectional views.
The graphics of engineering design and construction may very. The course content generally covers assembly and working drawings of electrical machines and machine parts, drawing of electrical circuits, instruments and components. Fundamentals of computer aided design sectional orthographic. Each one of these views shows two of the principle dimensions and can show only two.
If the thing we are drawing is too complicated for this method, instead of drawing hidden outlines we can make sectional views. The mechanical engineering branch, mechanical systems division, has been delegated. The mechanical engineering branch, mechanical systems division, has. By taking an imaginary cut through the object and removing. A section view is a view used on a drawing to show an area or hidden part of an object by cutting away or removing some of that object. The cut line is called a cutting plane, and can be done in several ways. Section views sectional drawings are multiview technical drawings that contain special views of a part or parts, views that reveal interior features.
Let us take an civil engineering architectural example of a house drawing. Rana continues to cover all the fundamental topics of the field, while maintaining its unique focus on the logic behind each concept and method. This has become very necessary as several aspirants of the 20202021 waec examination have been trooping into our website for waec guide and asking us several other questions concerning the syllabus for waec technical drawing to help them prepare. As figures shown, the cutting plane is a frontal plane and appears as a line in the top view. Let us take an civil engineeringarchitectural example of a house drawing. Sectional views are views that are created by cutting into or through a part or assembly. Another important line type associated with a section view is the cutting plane line.
For environmental health science students engineering drawing wuttet taffesse, laikemariam kassa haramaya university in collaboration with the ethiopia public health training initiative, the carter center, the ethiopia ministry of health, and the ethiopia ministry of education 2005. When the distance of the focus from the directrix is equal to 60 mm and eccentricity 23. From our basic engineering drawing knowledge, we can represent the details of an object fairly well through an orthographic projection drawing, indicating the dimension, shape, and size of the object. A sectional view or section looks inside an object. Sectional views sectional views are used in technical drawing to expose internal. At latest count, the department has 43 active faculty, 56 staff members, 311 graduate students, 50 postdoctoral associates, research associates and visitors. Each engineering field has its own type of engineering drawings. Welcome to the department of mechanical engineering, part of the college of science and engineering, serving the state and nation as a leading center of education, research, and innovation. Sectional views reveal hidden details in a mechanical drawing. Today you and i will quickly take a look at the topic waec syllabus for technical drawing 20202021 download waec syllabus pdf 2020. The invisible features of the object are conventionally depicted by means of. For a half section, the cutting plane removes only one quarter of an object. Sections are used to clarify the interior construction of a part that can not be clearly.
Sections and sectional views engineering drawing joshua. Engineering drawing 2 let119 sectional views presentation. Engineering drawing course and in minimizing discrepancies. If the thing we are drawing is quite simple, we can mark the hidden parts by a hidden outline. Sketching section views uses new features examples characteristics uses floor plan. Sectional views are used in engineering and architectural drawings. Ce 100 civil engineering drawing sessional lab manual. This will get you used to the look and feel of an engineering drawing. Engineering drawing important questions pdf file ed imp. Engineering drawing tutorialsorthographic and sectional. Sectional views are used in technical drawing to expose internal surfaces. A primary reason for creating a section view is the elimination of hidden lines, so that a drawing. Objectives what are sectional views why do we draw sectional views sections and cutting plane lines hidden lines in sectional views lines behind the cutting plane section lining practices.
Lesson 1 manual drafting tools for engineering drawing 4 lesson 2 types of scales 1417 lesson 3 line and lettering 1837 module 2 projections lesson 4 dimensioning technique 3849 lesson 5 orthographic projections 5082 module 3 sectional views lesson 6 sectional view 83105 lesson 7 types of projections 106123. Engineering graphics with autocad 2011, 1e james bethune. The sectionlined areas are those portionsthat have been in actual contact with thecuttingplane. Home mechanical engineering college of science and. The front view or front elevation shows the width and height. Sectional views are views from different sides of the object and different viewpoints and are used to quickly generate a 3d model of what the object will look like. For a symmetrical object, a half sectional view is used to indicate both interior and exterior details in the same view. The front view or front elevation shows the width and height of the front of the object. Dept of mechanical engineering and mechanics, drexel university good sectional view drawing practices different parts at different angles or patterns hatch spacing of about 11618 cutting plane line.
Identification of sections from engineering drawings. Electrical drawing is an important engineering subject taught to electricalelectronics engineering students both at degree and diploma level institutions. Engineering graphics is a set of rules and guidelines that help you create an engineering drawing. Before you start the copy process, make sure you have drawn the hidden and center lines. After the drawing is done and labeled, it can be sent to a machine which will actually create a handheld mold of the object.
Used to improve clarity and reveal interior features of parts. The arrows at the end of the cuttingplane line indicate the direction of sight for the sectional view. It does not require an understanding of its creator, only an understanding of engineering drawings. Sections are used to show interior details clearly. May 14, 2020 a section is used to show the detail of a component, or an assembly, on a particular plane which is known as the cutting plane. Jan 22, 2019 sectional views reveal hidden details in a mechanical drawing. A section is used to show the detail of a component, or an assembly, on a particular plane which is known as the cutting plane. Select the appropriate type of sectional view to show the hidden feature. This is to avoid drawing in a foreshortened position.
Section view styles control the appearance of each of the listed entities. About section views autocad 2016 autodesk knowledge. A model documentation section view is a projected view from an existing drawing view, where you use a section line to cut through the drawing view in order to reveal what is inside. It is considered poor practice to dimension to a hidden line and sectional views allow us to dimension the interior of a part without dimensioning to hidden lines. Engineering graphics, class 9 sectional views mechanical. Engineering drawing important questions pdf file ed imp qusts please find the attached pdf file of engineering drawing questions pdf ed imp qusts link ed question bank uniti construct an ellipse. Even in half sectional views, it is a good practice to omit the hidden lines. An engineering drawing is a type of technical drawing that is used to convey information about an object. Copy view to be cross sectioned start the process by copying the front view third angle projection of the object. To be aware of the basic conventions for sections and representing areas on sections outlined in bs iso 12840 and bs iso 12850. Dept of mechanical engineering and mechanics, drexel university todays learning objectives need for sectional view contents of sectional view identifying different kinds of sectional views. Feb 19, 2017 sectioning gives an inside picture of a drawing. Engineering drawings the blank engineering drawing form this blank template can be printed off the 2.
A cuttingplane line shows where object was cut to obtain the section view. Orthographic projections indian institute of technology. Usually, a number of drawings are necessary to completely specify even a simple component. Engineering drawing pdf book free download agrimoon. Engineering drawing tutorials orthographic drawing with vertical section t 11. Pdf engineering drawing 2 let 219 types of sectional. Usually, a number of drawings are necessary to completely specify even a. What is the importance of sectioning in an engineering drawing. Chapter 7 sectional views college of engineering and. Section lines are evenly spaced at any inclined angle that is not parallel to any existing edge line and should be visually distinct from the continuous lines that define the boundary of the sectional view.
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