welding_safety_test (1).doc - Welding Shop Safety Test Name...

Welding factory safety test name _________________________ period ______ grade ________ date ___ To use any equipment, 1) permission of the instructor, 2) demonstration of safety, and 3) completion of this test , 100% correct. What are the two objectives of regulating oxygen / acetylene units? Please describe the difference between AC, DC straight, DC reverse polarity. AC - DCS - DCR - What are the five materials used to make the electrodes? What is the regulator's 2 meters for? Please list three objectives of flux on the electrode. What do the numbers on the electrodes mean? (E10018 etc.) Which lens should I use for arc welding? Lenses to use when soldering with acetylene Why do you want to warn people around you before drawing an arc? 10. At our welding factory, recommended acetylene pressure should be set to ____ ~ ____ psi. 11. Oxygen hose is ___________ and there is __________ thread. 12. The color of the fuel hose is __________, and there is a manual screw thread of _________. What are the three characteristics of oxygen? 14. What kind of substances are used to control acetylene instability? 15. What are the four characteristics of acetylene? A. General safety circle "T" indicates each statement you think is correct, "F" indicates that each statement is incorrect.

MIG welding is a proverb that means metal inert gas welding, the correct name is gas metal arc welding or "GMAW", which is also called "wire wheel welding" of Union. MIG welding is often used in shops and factories. This is a mass welding process mainly used indoors. MIG welding is not that easy when setting up the equipment, but the required skills are much less than welding. MIG welding works by attaching the earth clip to the workpiece, turning on the power, and finally opening the shielding gas. After that, you need to set the voltage with IPM (in / min), wire feed speed, shield gas flow (CFH) (cubic feet per hour). Next, simply pushing the trigger, the MIG gun delivers the shielding gas and wire to the solder joint. When a wire hits a welded joint, it begins to draw an arc and the wire melts and begins to fill in the joint

Welding factory safety test name _________________________ period ______ grade ________ date ___ To use any equipment, 1) permission of the instructor, 2) demonstration of safety, and 3) completion of this test , 100% correct. What are the two objectives of regulating oxygen / acetylene units? Please describe the difference between AC, DC straight, DC reverse polarity. AC - DCS - DCR - What are the five materials used to make the electrodes? What is the regulator's 2 meters for? Please list three objectives of flux on the electrode. What do the numbers on the electrodes mean? (E10018 etc.) Which lens should I use for arc welding? Lenses to use when soldering with acetylene Why do you want to warn people around you before drawing an arc? 10. At our welding factory, recommended acetylene pressure should be set to ____ ~ ____ psi. 11. Oxygen hose is ___________ and there is __________ thread. 12. 13. 14. 15 A.