The minimum depth for a control joint is _____.
a. 3/8
b. 3/4
c. 1
d. 1-1/4
Question 2
The device that pulls the electrode wire from a spool and pushes it through the gun cable and gun is known as
a(n) _____.
a. spool gun
b. closed-loop unit
c. push-pull extractor
d. wire fee