Author Question: Of the following listed grades, which has little usefulness in mechanical drawing? a. 4H b. 2H ... (Read 82 times)

schs14 · **on:** Aug 19, 2018

Of the following listed grades, which has little usefulness in mechanical drawing?

a. 4H
b. 2H
c. H
d. HB
e. 3B

Question 2

A line described as a thick line with dashes approximately long, having arrows perpendicular to the line best identifies a:

a. Short break
b. Visible line
c. Cutting plane line
d. Chain lines
e. Phantom line