The icing additive requirement for fuel temperature applies below which value?

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Multiple Choice

The icing additive requirement for fuel temperature applies below which value?

Fuel system icing inhibitor is required when the fuel temperature gets cold enough for water in the fuel to begin freezing and form ice crystals that can clog lines or filters. The specified trigger is below -43°C, at which point icing inhibitors are added to prevent ice crystal growth and protect the fuel system. This threshold is chosen because it’s the temperature where the risk of fuel icing becomes significant, and the inhibitor effectively lowers the tendency for ice to form. So the correct value is -43°C. The other temperatures do not match the standard trigger for applying FSII in typical practice.

Fuel system icing inhibitor is required when the fuel temperature gets cold enough for water in the fuel to begin freezing and form ice crystals that can clog lines or filters. The specified trigger is below -43°C, at which point icing inhibitors are added to prevent ice crystal growth and protect the fuel system. This threshold is chosen because it’s the temperature where the risk of fuel icing becomes significant, and the inhibitor effectively lowers the tendency for ice to form. So the correct value is -43°C. The other temperatures do not match the standard trigger for applying FSII in typical practice.

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