Maintenance manual diagrams and descriptions. Which of the following would be most useful to locate and troubleshoot an internal fuel leak in an aircraft fuel system? (2) A fuel heater can use engine lubricating oil as a source of heat. (1) A fuel heater can use engine bleed air as a source of heat. Select one means of controlling the fuel temperature on turbine-powered aircraft. Which statement concerning an electronic capacitance-type fuel quantity indicating system is true?įuel heaters are used with fuel systems for turbine engines to prevent _ in the fuel from clogging system filters. One advantage of electrical and electronic fuel quantity indicating systems is that the indicatorĬan be located any distance from the tank(s). What type of remote-reading fuel quantity indicating system has several probes installed in each fuel tank? To prevent vapor lock in fuel lines at high altitude, some aircraft are equipped with It sends an electric signal to the fuel quantity indicator.Ī typical large transport aircraft fuel manifold system allows how many of the following? What is the purpose of a float-operated transmitter installed in a fuel tank?
In the tank that moves a connecting arm to the wiper on a variable resistor in the tank. The fuel pressure drops below specified limits.Īn electrical type fuel quantity indicating system consists of an indicator in the cockpit and a float
What type of fuel-booster pump requires a pressure relief valve?Ī fuel pressure warning switch contacts close and warning light is turned on when To prevent fuel from flowing away from the boost pumps. What is the purpose of flapper-type check valves in integral fuel tanks? Slightly increase before the engine starts to die. When moving the mixture control on a normally operating engine into the idle cutoff position, engine RPM should The word 'Avgas' and the minimum fuel grade. What markings must be placed on or near each appropriate fuel filler cover on standard category aircraft? The presence of fuel stains around a fuel nozzle would indicate What is the recommended practice for cleaning a fuel tank before welding? Sight glass, mechanical, electrical, and electronic. What are the four general types of fuel quantity gauges? Have at least one bend between such fittings. When routing a fuel line between two rigidly mounted fittings the line should What is the maximum vapor pressure allowable for an aircraft fuel? Pressurize the tank with air and brush with soapy water. When inspecting a removable rigid fuel tank for leaks, what procedure should be followed? Why are integral fuel tanks used in many large aircraft? It allows any tank to supply fuel to any engine.
What is the primary purpose of the crossfeed system? In some aircraft with several fuel tanks, the possible danger of allowing the fuel supply in one tank to become exhausted before the selector valve is switched to another tank is prevented by the installation ofĪ digital fuel totalizer automatically indicates the amount of fuel used, fuel remaining, current rate of consumption, and fuel Which of the following is necessary to effectively troubleshoot a fuel pressure warning system? Why is the capacitance fluid quantity indicating system more accurate in measuring fuel level than a mechanical type? What unit is generally used to actuate the fuel pressure warning system? To close the valve at any time and the fuel must discharge clear of the aircraft. The fuel jettison valve must be designed to allow flight personnel Through a common manifold and outlet in each wing. How is the outlet fuel pressure regulated on a submerged, single-speed, centrifugal-type fuel pump?īy the pump's design and internal clearances. To provide a positive flow of fuel to the engine. Where is fuel pressure taken for the pressure warning signal on most aircraft engines? When inspecting a fuel system, you should check all valves located downstream of boost pumps with the pumps Many fuel tanks incorporate _ valves to prevent fuel from flowing away from the boost pump or tank outlet when the aircraft is in a high 'G' maneuver. Which of the following precautions is most important during refueling operations?įuel to be used must be appropriately identified. It traps any small amount of water that may be present in the fuel system. Why is the main fuel strainer located at the lowest point in the fuel system? A transducer in a fuel pressure system serves what function?Ĭonverts fluid pressure directly through a transmitter to the indicator.Ī capacitance-type fuel quantity indicating system measures fuel in
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