What is the maximum amount of refrigerant allowed in a 3000 lb receiver?

In refrigeration systems, the amount of refrigerant that can be stored or handled is typically subjected to safety regulations and guidelines. For a receiver with a capacity of 3000 lbs, the maximum amount of refrigerant that can be legally contained is generally set below the full capacity. This is because regulations often require that a buffer is maintained to account for variations in temperature, pressure, and the potential for expansion of the refrigerant.

The correct choice indicates the highest allowable amount of refrigerant that can be stored safely within a 3000 lb receiver, maintaining compliance with safety measures. Having a maximum limit of 2700 lbs ensures that there is adequate room to accommodate the refrigerant's thermal expansion and prevents possible overfilling, which could lead to safety hazards, including pressure buildup and potential leaks.

In this context, the other options, while presenting numerical values associated with the receiver's capacity, either exceed the recommended maximum storage limit or suggest amounts that are not practical or safe. Thus, the emphasis on the 2700 lbs limit reflects a standard safety practice in refrigeration system management.