engineering recuitment Punjab SSSB Jr Draftsman Civil Mock Test 2021 Basic Science and Engineering Engineering Drawing
Thickness of a hidden line in building drawings is about ________
1
0.1 mm to 0.2 mm
2
0.2 mm to 0.3 mm
3
0.3 mm to 0.4 mm
4
0.4 mm to 0.5 mm