Final answer:
Performing a calculated-add prior to fueling an aircraft or topping off a tanker truck serves multiple purposes, including accurate billing, calibrating meters, and estimating the amount of fuel to be transferred.
Step-by-step explanation:
In the context of topping off a tanker truck or fueling an aircraft, performing a calculated-add prior to fueling serves multiple purposes:
- To correctly bill customers: By performing a calculated-add, the exact amount of fuel being transferred can be determined, ensuring accurate billing.
- To calibrate meters: By knowing the weight or volume of fuel being added, the meters can be calibrated to accurately measure the fuel in the future.
- To estimate the number of gallons to be transferred: Calculating the weight or volume of fuel allows for an estimate of the amount to be transferred, providing information for planning and logistics.