Which of the following is NOT a part of the pump performance testing process?

The correct response focuses on the fact that pressure relief adjustment is not typically included in the pump performance testing process. During pump performance testing, the main objective is to evaluate the pump's capability to operate within specified parameters, ensuring safety and efficiency in its operation.

The standardized process often involves recording environmental conditions, which provides context for the test results and allows comparison against operational standards. Pressure adjustment is also crucial since it directly influences the pump's performance metrics like flow rate and discharge pressure. Inspection of fittings ensures that all connections are secure and free from leaks, which can impact overall performance.

In contrast, pressure relief adjustment is more relevant to safety protocols rather than performance testing. It primarily focuses on ensuring that the system can manage excess pressure to prevent failures or accidents, rather than assessing the pump's operational capacity under normal conditions. Thus, it's correct that pressure relief adjustment is not a standard part of the pump performance testing process.