compared to arc welding, which of the following statements are true about gas welding?

Compared to arc welding, the true statements about gas welding are that gas welding is slower than arc welding and also easier to control than arc welding. Gas welding uses a flame generated by combustion of oxygen and fuel gas (such as acetylene) to melt the metal. This flame produces a lower temperature than the electric arc in arc welding, making gas welding generally slower because it takes more time to heat the metal to melting point. However, gas welding allows more precise control over the heat and flame size, which makes it easier for welders to control the process compared to arc welding, where controlling the electric arc requires more skill and practice. In contrast, arc welding uses an electric current to generate an arc with temperatures as high as 3600°C (6500°F), enabling faster welding particularly on thicker materials. Arc welding typically results in stronger and more durable welds due to its higher heat and deeper penetration. Gas welding is more suited for thinner metals and applications requiring finer control. Thus, the two key differences: gas welding is slower but easier to control than arc welding.