Torches are designed to avoid mixing oxygen and acetylene by using __________. Correct Answer: Reverse-flow check valves at torch inlets or regulator outlets
To prevent leakage around the valve during use, __________
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Torches are designed to avoid mixing oxygen and acetylene by using __________. Correct Answer: Reverse-flow check valves at torch inlets or regulator outlets
To prevent leakage around the valve during use, __________ Correct Answer: An oxygen cylinder valve should be opened all the way
An explosion can occur if __________ comes in contact with oil. Correct Answer: High pressure oxygen
A green welding hose normally indicates that this hose carries __________. Correct Answer: Oxygen
A __________ is a non-destructive test that uses a colored spray to reveal imperfections in a weld. Correct Answer: dye-penetrant test
A red welding hose indicates that this hose carries __________. Correct Answer: acetylene
When using the __________ in welding, the electrode should be leaned 15 to 25 degrees in the direction of travel. Correct Answer: pull technique
__________ metal is a metal similar in composition to the metal being joined. It strengthens the weld by filling the gap created between the two pieces of metal during welding. Correct Answer: Filler
Metals treated by __________ processes become soft. Correct Answer: annealing
Oxy-acetylene welding requires no __________ and is not sensitive to wind or drafts like Gas Metallic Arc Welding or Gas Tungsten Arc Welding. Correct Answer: electricity
A magnaflux test is used to show what flaw in ferrous metal? Correct Answer: Cracks in the surface
A spot welding system consists of an electrical supply, moveable arm, and a(n) __________. Correct Answer: stationary arm
What device should be stored a minimum of 20 feet from flammable materials? Correct Answer: Oxygen Cylinders
The gas metal arc welding (GMAW) process uses __________ to melt metal wire and fuse it with the base metal being welded. Correct Answer: Electricity
Circuit testers determine if ___
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