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NIOS Silver Jubilee Year

Engineering Drawing

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Rural Technology


Basic forms of Graphical Representation of Knowledge

Basic Symbols used in Engineering Drawing

Selecting Scale for Drawing

Drawing Basic Shapes


Drawing is universal language. It has several advantages over textual information. It is easily understood, - even by illiterates. Engineering drawing is the language of the technicians. Like any other language, Engineering drawing has it rules and grammar. We must learn to use principles of engineering drawing to convey our ideas. Engineering drawing makes it possible to convey ideas from one person to others. It makes it possible to replicate the jobs in large numbers without any deviations. In this lesson, we are going to study basic rules of drawing.


After going this lesson, you will be able to:

  • define different forms of drawing and their use
  • define scale and basic shapes of drawing
  • calculate the area of regular and irregular shape


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Rural Technology