Completion

Question 1

the torch may be angled for better visibility and still have the proper shielding __________.

Answer 1

gas coverage

Question 2

as the gas flows out of the torch it must perform a(n) __________ around the weld

Answer 2

protective Zone

Question 3

when tungsten touches the molten weld pool, __________ pulls the contamination up onto the hot tungsten

Answer 3

surface tension

Question 4

failure to remove tungsten contamination properly will result in _________

Answer 4

weld failure

Question 5

during the manufacturing process sometimes profits of primarily _________ gas become trapped inside low carbon and Mild steels

Answer 5

carbon dioxide

Question 6

with stainless steel it is desirable to take the time and necessary precautions to make Wells that are no darker than the color. ________

Answer 6

dark blue

Question 7

most GTA filler metals have some alloys called, _________, that can help prevent porosity caused by gases trapped in the base metal

Answer 7

deoxidizers

Question 8

__________ is GTA welding using an EWP, EWZr, EWCe-2, or EWLal-1 rounded tip tungsten with the welding machine set for a ACHF welding current

Answer 8

aluminum

Question 9

a thick piece of metal that is used to absorb heat is also called a(n) _______

Answer 9

chill plate

Question 10

mild steel weld coupons can have the welds removed using in OFC torch but weld on stainless and aluminum coupons will have to be cut with a(n) __________ torch.

Answer 10

plasma Arc