Based on a blueprint, a machinist is about to drill a form 16mm diameter holes a piece of 100mm x 120mm flat bar. Which lines in the alphabet of lines mist look first?
A. hidden line
B. phantom line
C. centerline
D. section line
Answer:C
Based on a blueprint, a machinist is about to drill a form 16mm diameter holes a piece of 100mm x 120mm flat bar. Which lines in the alphabet of lines mist look first?
A. hidden line B. phantom line C. centerline D. section line