10 Questions
What is the primary cause of waxing in jet fuel?
Solidification of heavy hydrocarbons at low temperatures
Which of the following is the most effective way to minimize the effects of waxing in jet fuel?
Using a fuel heater in the engine's fuel system
What is the primary cause of fuel boiling in jet aircraft?
Increased vapor formation due to decreased pressure at high altitudes
How do modern aircraft typically address the issue of fuel boiling?
By installing fuel booster pumps inside the fuel tanks
How does the specific gravity (or density) of jet fuel affect engine performance?
Changes in fuel density directly impact the heat release from the fuel, affecting engine power output
What is the primary purpose of adding fuel additives to jet fuel?
To prevent waxing and fuel boiling
What is the primary difference between Jet A-1 and Jet B fuels?
Jet B is a wide-cut fuel, while Jet A-1 is a kerosene-based fuel
How do changes in the specific gravity of jet fuel affect the overall weight of the aircraft?
Changes in fuel density can affect the overall weight of the aircraft, as the fuel is a significant component of the total weight
What is the primary purpose of the fuel control unit in modern jet aircraft?
To automatically adjust for changes in fuel density, minimizing their impact on engine performance
Which of the following is the most significant risk associated with the use of Jet B fuel in aircraft?
Decreased energy density resulting in reduced range and endurance
Explore the ideal requirements for fuels in gas turbine engines and piston engines, including ease of flow, complete combustion, high calorific value, non-corrosiveness, low fire hazard, and more. Test your knowledge on fuel specifications and their impact on engine performance.
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