MSSC - Maintenance Awareness Study Guide with Questions and Correct Answers

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