Level 2 Module 29205 GMAW and FCAW - Equipment and Filler Metals Questions And Answers Rated A+ New Update Assured Satisfaction

1. The welding process that uses flux-cored wire without the use of an external shielding gas is called _____. Answer: Self Shielding FCAW Explanation: Self Shielding Flux-Cored Arc Welding (FCAW) uses a flux inside the wire to generate shielding gases, eliminating the need for an external shielding gas. This makes it ideal for outdoor or windy conditions. 2. If the tongue and lace area of a welder’s safety shoes are exposed, the welder should _____. Answer: Wear leather spats or chaps Explanation: Leather spats or chaps protect the exposed areas of safety shoes from sparks, molten metal, and heat during welding, preventing injuries. 3. A powered extraction system is a valuable tool for _____. Answer: Removing welding fumes Explanation: Welding fumes contain hazardous particles and gases; powered extraction systems improve air quality and safety by actively removing these fumes from the welding area. 4. Spray transfer, globular transfer, and pulsed transfer are _____. Answer: GMAW metal transfer modes Explanation: These are types of metal transfer methods used in Gas Metal Arc Welding (GMAW), influencing weld quality, penetration, and spatter. 5. A variation of spray transfer welding in which current is cycled from high to low is _____. Answer: Pulsed transfer welding Explanation: Pulsed transfer welding cycles the welding current between high and low levels, allowing better control of heat input and reducing spatter.6. Which shielding gas improves FCAW weld penetration? Answer: Carbon dioxide Explanation: Carbon dioxide as a shielding gas enhances arc penetration and provides deeper welds in FCAW processes. 7. The operating voltage of a welding machine, which is produced during welding, is known as the _____. Answer: Arc voltage Explanation: Arc voltage is the electrical potential difference between the electrode and the workpiece during welding, affecting arc stability and penetration. 8. In engines that power generators, the engine speed is controlled by _____. Answer: Governors Explanation: Governors regulate the engine speed to maintain a consistent output frequency and voltage in generator engines. 9. A duty cycle is the percentage of a 10-minute period during which a welding machine can continuously _____. Answer: Produce its rated amperage without overheating Explanation: The duty cycle indicates how long a welder can operate at a specific current before needing to cool down to avoid damage