What is the oil pressure measured during abnormal conditions?

In an industrial refrigeration context, monitoring oil pressure is crucial for ensuring the proper functioning of compressors and lubrication systems. Abnormal conditions often refer to situations that deviate from standard operating parameters, such as higher temperatures or unexpected loads.

The pressure values given in the choices likely reflect a range of acceptable or expected oil pressures under normal conditions, which can vary based on the specific system and its design parameters. However, the choice of 55 PSID as the oil pressure during abnormal conditions suggests that this value has been determined based on operational data or system specifications relevant to maintaining optimal lubrication even under increased strain.

When systems experience abnormal conditions, higher oil pressure may be necessary to ensure that the lubricating oil reaches critical components effectively, thus preventing wear and potential failure. This pressure indicates that the lubrication system is responding adequately to maintain performance and protect the machinery from damage during stressful operational scenarios.