What is a concern with a recirculated system if you lose the compressors that draw gas off of the LPR and a pump stays running?

The concern with a recirculated system when the compressors that draw gas off of the Low Pressure Receiver (LPR) are lost, while a pump continues to operate, is indeed related to flooding out the evaporators and all associated piping.

In this scenario, without the compressors functioning to remove vapor from the LPR, the pressure within the system can increase, leading to excessive liquid refrigerant being present in the evaporators. If this liquid cannot be adequately vaporized due to the lack of compressor action, it results in liquid refrigerant flooding the evaporators. This flooding can disrupt normal operation, leading to inefficiencies and possible damage to both the evaporators and the associated piping. It can also impact the cooling capacity and overall efficiency of the system, creating a cascade of issues in cooling performance.

The other options indicate potential issues, but they do not address the immediate consequence of losing compressive action while the pump continues to run, which primarily leads to flooding in the evaporators. Thus, focusing on the flooding of evaporators and piping is the most relevant concern in this situation.