Final answer:
A soldered joint is created by joining metals with alloys that melt between 800° F and above 200° F, providing a gas-tight connection at lower temperatures compared to welding.
Step-by-step explanation:
According to the provisions of the rule, a soldered joint is a gas-tight joint obtained by the joining of metals with metallic mixtures or alloys that melt at temperatures below 800° F and above 200° F. This is because soldering materials are designed to melt and form bonds at these lower temperatures compared to those required for welding, which are typically above 1000° F. Alloys used in soldering have melting points that are suitable for the process, ensuring a strong and durable joint without compromising the integrity of the metals being joined.