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30 Cards in this Set
- Front
- Back
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In oxyacetylene welding where should the welder stand when the oxygen or fuel cylinder is opened? |
The the side of the regulators and gauges |
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The fuse plugs of an acetylene cylinder will normally melt at what temperature? |
212F |
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When opening a cylinder valve, the regulator adjusting screw should be closed by turning it (blank) and the cylinder valve opened (blank) to prevent the gauges from rupturing or bursting |
out, slowly |
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Acetylene is explosive at pressures above? |
15 PSIG |
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What number lens should be used for goggles for oxyacetylene cutting and welding |
#4-#6 |
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An oxygen hose is what color? Threaded to the ..? And does or does not have a notch? |
Green Right Does not |
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To close the regulator and stop the flow of gas, turn the regulator adjusting the screw in the |
Counterclockwise |
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True or false, pressing the cutting lever on a cutting torch releases a stream of pure acetylene that burns through the preheated metal. |
False, oxygen. |
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What does a neutral flame look like? |
Smooth with a bullet shaped inner cone. |
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What type of flame is used for oxyacetylene cutting? |
Neutral |
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How far should the oxygen cylinder valve be open for welding and cutting? |
All the way |
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How far should the acetylene cylinder valve be opened for welding and cutting? |
1/4-1/2 |
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What are 2 ways to test for system leaks? |
Soapy water Watch the valves |
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How many preheating orifice should be in alignment? |
2 minimum |
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What does sstell look like when it is ready to cut? |
Glowing red-orange |
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What is the center hole in the cutting tip? |
Oxygen |
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What does GMAW stand for? |
Gas Metal Arc Welding |
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What does MIG stand for? |
Metal Inert Gas Welding |
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In MIG welding, what psi should the welding gas be set at? |
15-25 |
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What are the types of gases used for shielding in GMAW? |
CO2, Argon, or a combination |
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What is the proper contact tip to work distance with GMAW? |
1/4"-1/2" |
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Dragging or pulling the gun will result in? |
More penetration and a narrower bead |
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Pushing the gun will result in? |
A wider bead with less penetrations |
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What is the appropriate rating for safety goggles ? |
Z87, Z87.1 or Z87 Plus |
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What is the appropriate shade for welding with MIG? |
10 for indoor, 12 for dark space |
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What are the 3 gases produced by welding and torch cutting? |
Ozone, Carbon monoxide, nitrous oxide |
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Torch cutting and brazing goggles should be |
3 outdoor, 5 indoor, 4 minimum |
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Ear protection level? |
21dB |
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What are the 2 common types of welding wire? |
ER70S-3 ER70S-6 |
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How can you protect yourself from welding fumes? |
3M respirator Fume vaccum Well ventilated area |
