What is an accumulation test used to verify in a boiler?

An accumulation test is a crucial procedure performed on a boiler to ensure its safety and operational integrity. Specifically, this test is designed to verify the maximum pressure that the boiler can safely handle without failing. During the test, the boiler is subjected to pressure levels that exceed its normal operating parameters, and the system is evaluated for any signs of weakness or failure.

Conducting this test is an essential part of a comprehensive safety analysis, ensuring that the boiler can withstand potential overpressure scenarios that may occur during its operation. By confirming the maximum pressure handling capacity, operators can guarantee that the boiler meets regulatory standards and operates safely under various conditions.

In relation to the other options, the fuel consumption rate assesses how efficiently fuel is used in the combustion process; effectiveness of insulation relates to maintaining temperature efficiency and reducing heat loss, neither of which aligns directly with an accumulation test's purpose. Lastly, the safety of the steam outlet system is likely evaluated through different means, focusing on the pressure relief mechanisms in place rather than the boiler’s overall pressure capacity.