SHEET 2

 SHEET 2  (N-22)

LINE AND  DIMENSIONING

Q1. TYPES OF LINES

   1) Construction line, projection line , section line

   2)  Object line, Edge line

   3)  Hidden line

   4) Centre line

   5) Cutting plane line

   6)  Ditto line

   7) Centriodal line

    8) Short break line

    9) Long break line

   10)Dimension line

   11)  Leader line

Q2. DIMENSIONING

    1) arrow head

    2) Unidirectional dimensioning

    3) Aligned dimensioning

    4) Parallel dimensioning

    5) Chain dimensioning

    6) Co-ordinate dimensioning or location dimensioning

    7) Diameters

    8) Radius

    9) Angles

    

    Cautions:

Draw the Object with the Object Line i.e. H/HB Pencil

Draw the Dimension lines with 4H Pencil