MSSC MAINTENANCE AWARENESS 2024 NEWEST 2 VERSION (VERSION A AND B) COMPLETE 260 QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT) /ALREADY GRADED A+

MSSC MAINTENANCE AWARENESS 2024 NEWEST 2 VERSION (VERSION A AND B) COMPLETE 260 QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT) /ALREADY GRADED A+ 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 Page 2/11 Crafted for Academic Insight by ©Olivia GreenWays 2025. All rights reserved. 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 Circuit testers determine if __________ electricity is present. - AC A knife switch consists of a lever and one or more sets of __________. - contacts The component of an electrical circuit that gives the operator control is the __________. - input device The type of current that only flows in one direction is __________. - DC Constant voltage power supplies will maintain a constant voltage under varying __________. - loads 10mA would be an example of __________ value. - current A(n) __________ is used to measure resistance. - ohmmeter Voltage is a(an) electrical __________. - force If a wire has continuity, it__________. - will have almost no resistance Current in a __________ circuit is divided among the branches of the circuit. - parallel As branches are added to a parallel circuit the resistance __________. - decreases A multimeter is a multipurpose device that can measure _________. - voltage, current, and resistance Page 3/11 Crafted for Academic Insight by ©Olivia GreenWays 2025. All rights reserved. In a parallel circuit with a constant voltage power supply, the voltage drop across each branch is __________. - equal to the power supply voltage A(n) __________ circuit is one in which there is more than one path for current to travel. - parallel An ammeter is used to measure __________. - current The two ways to measure voltage are __________ and __________. - across a component, from a reference Both analog and digital voltmeters measure __________. - potential difference When current in a circuit is too high, it is usually the result of too many loads or a __________. - short circuit Electrical wiring that runs in exposed locations must be protected by pipe or tubing called __________. - conduit The total power in __________ electrical circuit is calculated by finding the sum of the ind