Various tests while conducting a fuel oil analysis can be performed on board to facilitate proper fuel storage, handling, and treatment. What tests are most important for determining what temperatures to maintain throughout the fuel forwarding and service systems?

Correct Answer: Option A — Pour point and viscosity.

Pour point and viscosity are the primary parameters for fuel handling. Viscosity dictates the required heating for proper atomization at the injectors, while pour point determines the minimum temperature required to keep the fuel pumpable in storage and transfer systems, preventing wax precipitation and clogged suction strainers.