Correct option is C
Dimension text is generally placed above the
dimension line. This placement ensures clarity in reading the dimension and helps in accurately understanding the measurements represented in the drawing.
There are different types of lines used in engineering drawing:
1.
Visible outline or object line: The outline or object line is represented by thick line and is used to show the outer visible feature of the object in the drawing.
2.
Section line or hatching line: It is a thin continuous line and is used for the purpose of sectioning an object.
3.
Centre line, locus line: These lines are represented by long and short dashes in proportion ranging from 6: 1 to 4 : 1, closely and evenly spaced in any drawing.
4.
Hidden line: The hidden line is represented by closely and evenly spaced short dashes. It is used to show the invisible or hidden parts on the drawing.
5.
Dimension line: It is thin continuous line for giving dimensions. This line terminates in arrow head where the dimension lines meet the extension lines.
6. Extension line: It is a thin continuous line used for dimensioning an object. It projects from an object for the express purpose of locating a dimension
