Author Question: Before a steel plate is used for practice welding, mill scale on the plate is removed because the ... (Read 78 times)

Diane · **on:** Jul 24, 2018

Before a steel plate is used for practice welding, mill scale on the plate is removed because the DCEN used in
GTAW has little or no _____.

a. electrical conductance
b. flux resistance
c. arcing ability
d. cleaning action

Question 2

If a hard hat is required during overhead cutting or welding, it should allow the attachment of _____.

a. a rear deflector and a face shield
b. a front deflector and ear muffs
c. cotton or leather spats
d. an oxygen tank for breathing