Which of the following is correct regarding piping arrangement around a boiler?

Using offsets for expansion and contraction is essential in piping arrangements around a boiler due to the thermal expansion that occurs when the system heats up. As the temperature of the pipes increases, the materials expand, and if the piping system is rigid, this expansion can lead to increased stress on the pipes, joints, and connections, potentially resulting in leaks or failure.

Offsets provide a flexible path for the pipes to expand without putting undue stress on the system. This flexibility is crucial in maintaining the integrity and functionality of the piping arrangement. Additionally, by incorporating offsets, you can help accommodate any movements that might occur as temperatures change, making the system more resilient over time.

Other options may suggest different practices for piping arrangements but do not address the critical need to allow for thermal expansion in a way that prevents structural failure and ensures safe operation.