The dimension line is generally

….… is used to protect the adjoining lines on the drawing when some parts of the line are being erased.

In third angle projection, top view is put

Set squares are not used to draw

The locus of center of curvature is known as:

Set squares are used for drawing …………,…………… and ………lines

The area occupied by A0( drawing sheet ) is ……………… time the area occupied A4 (drawing sheet ).

Engineering drawing is the ……… of engineers