What maximum percentage of the receiving tank's capacity can be transferred in a fuel transfer system?

• A. 80%
• B. 85%
• C. 90%
• D. 95%

Answer: (C)

The maximum percentage of the receiving tank's capacity that can be transferred in a fuel transfer system is typically set at 90% to ensure safety and to allow for expansion of the fuel. This limitation is important because it provides a buffer that mitigates risks associated with overfilling, such as spillage, which could lead to environmental hazards or safety incidents. Additionally, maintaining this allowance helps accommodate the thermal expansion of the fuel and ensures that there’s enough room in the tank for this expansion without risking overflow. Hence, the 90% transfer limit reflects a standard safety practice in fuel handling operations.