How many MFP lube oil pumps are there in total?

The correct answer indicates that there are three lube oil pumps associated with the Main Feedwater Pump (MFP). This configuration typically includes a combination of different types of pumps, such as a main lube oil pump and perhaps a standby or secondary pump. The purpose of having multiple pumps is to ensure reliability and redundancy in the lubrication system, helping to maintain optimal operating conditions for the MFP.

In large industrial systems, redundancy is crucial, and having multiple pumps allows for maintenance or replacement of one without causing downtime for the entire system. This standard practice ensures continuous operation and protection for critical components by providing a sufficient supply of lubrication, which is vital for reducing friction and wear in mechanical systems.

Understanding the rationale behind the number of pumps helps reinforce the importance of system reliability and maintenance strategies in the context of auxiliary equipment.