This video gives demonstration of various types, systems and classification of dimensioning in Engineering Drawing.

DIMENSIONING
Systems of Dimensioning
1. Aligned System of Dimensioning: In this system all the dimensions are written above the dimension line and aligned to it.
2. Unidirectional System of Dimensioning: In this system all the dimensions are written in a single direction and is written between the dimension line.
3. Parallel Dimensioning: All the dimensions are measured from a single datum surface of the figure. All the dimensions are written parallel to each other.
4. Chain Dimensioning: All the dimensions are written like a chain adjacent to each other.

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