2. What is an Engineering Drawing
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• Engineering drawing is a graphical language which also uses written language for
effective communication.
• A drawing is a graphical representation of an object, or part of it, and is the result of
creative thought by an engineer or technician.
• “An Engineering Drawing is a technical (not artistic) drawing which clearly defines and
communicates a design to other interested parties. Other parties may have an interest
in design collaboration, procurement / purchasing, costing, manufacturing, quality
control, marketing, handling / packaging.”
3. Engineering Drawing
• "a graphic representation of an idea, a concept or an entity which actually or
potentially exists in life“
• There are two basic types of drawings: Artistic and Technical drawings.
• Technical drawings: “a precise and detailed drawing of an object, as employed
in architecture or engineering.”
• Technical drawing is the preferred method of drafting in all engineering fields,
including, but not limited to, civil engineering, electrical engineering,
electronics,mechanical engineering and architecture.
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4. Purpose of studying engineering drawing:
• To develop the ability to produce simple engineering drawing and sketches
based on current practice.
• To develop the skills to read manufacturing and construction drawings used in
industry.
• To develop a working knowledge of the layout of plant and equipment.
• To develop skills in abstracting information from calculation sheets and
schematic diagrams to produce working drawings for manufacturers, installers
and fabricators.
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5. Main types of Engineering Drawing:
Regardless of branch of engineering the engineering drawing is used
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6. Mechanical engineering drawings:
• Some examples of mechanical engineering drawings are
• part and assembly drawings, riveted joints, welded joints,
• fabrication drawings, pneumatics and hydraulics drawings,
• pipeline diagrams, keys coupling drawings etc.
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7. • Electrical Engineering drawings
• Wiring diagrams of home and industries, circuit diagrams, electrical installation
drawings etc.
• Electronics Engineering drawings:
• Circuit drawings, PCB tracks drawings etc.
• Civil Engineering drawings
• Plan, front elevation of homes to be built, foundation drawings,
etc.,
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8. Role of Engineering Graphics
• Visualization
• Communication
• Documentation
• Engineering students will benefit if drafting skills continue to be developed in
their materials, manufacturing and design synthesis courses.
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13. Role of Engineering Graphics
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1200 CE, 73 meter high minar with 14.32 meter
diameter at the base and 2.75 meter diameter at the
peak. It has inside stair with 379 steps.