Based on a blue print, a machinist is about to drill a 16mm diameter hole on a piece of 100mm x 120mm flat bar. Which line in the alphabet of lines must he look for first?
A. Hidden line
B. Phantom line
C. Center line
D. Section line
Answer:C
Based on a blue print, a machinist is about to drill a 16mm diameter hole on a piece of 100mm x 120mm flat bar. Which line in the alphabet of lines must he look for first?
A. Hidden line B. Phantom line C. Center line D. Section line