ENGINEERING DRAWING

Engineering Drawing for Technicians



Engineering Drawing for Technicians

Introduction

The technical drawing is a form of graphic expression which aims representation of shape, size and position of objects according to the different needs required by different types of engineering and architecture as well. Using a set consisting of lines, numbers, symbols and notations written standardized internationally, technical drawing is defined as universal graphic language of engineering and architecture (Jing et.al, 2013 pp. 2170). Just as verbal language writing requires literacy, performance and interpretation of the graphic language of technical design require specific training, because they are used figures flat (two-dimensional) to represent spatial forms.

Manual Technical Drawing Engineering offers a clear and concise approach of the essential topics taught in a modern course in technical drawing for engineering students. The theory of projections provides the educational framework, and freehand is the instrument used to teach important concepts graphs that constitute the core of this work. The book features hundreds of design problems which serve to develop the student's ability to use designs for inspiration and communication, as well as stimulate the power of visualization (Shih et.al, 2013). The freehand to 3D CAD, addresses engineering designs drawings and other concepts; flat projections and pictorial drawings, multiple views, auxiliary views and sections, dimensions and tolerances; design computer technician; final designs; dissection, reverse engineering and redesign; perspective projections and perspective drawings, geometric tolerance, among other topics. Bringing together in one volume the topics that are typically covered in several specialized books, this book provides the engineering student the resources to put on paper their most creative ideas.

Question 1

Workshop Vice

Question 2

With the advent of computational tools was a transformation in technical drawing and image manipulation, a project that was previously done by hand and with plans, elevations and sections, can now be done entirely on the computer in three dimensions (Vessels et.al, 2013). With this new way of designing, from volumetric studies and reducing the time spent on repetitive tasks, projects are accomplished more easily and quickly, bringing benefits such as greater detail, precision and interaction between various designers.

The cost-benefit analysis (CBA) is a method for assessing the net economic impact a public project. A current application of the analysis for a project of this type, but in principle, the same methodology can be applied to a variety of interventions, such as subsidies for private projects, regulatory reforms, new rates taxation, etc. (Rajpurohit et.al, 2013). The purpose of CBA is to determine whether a project is feasible from view of social welfare, through the algebraic sum of their costs and benefits, discounted over time.

The technique in question comes from:

predict the economic effects of a project;

Quantify these effects,.

Turn them into monetary units (where possible);

Calculate its cost effectiveness by means of an accurate, allowing formulate a concrete opinion regarding the expected performance of the project.

The work area on a sheet of drawing is enclosed by the frame. Amoldura is a rectangle the thick solid line, the minimum thickness of ...