Aviation Mechanic - General, Airframe, and Powerplant › III. Powerplant › Task D. Engine Instrument Systems

AM.III.D.K1

Knowledge

Fuel flow.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Powerplant p. 10-22
Chapter 10: Engine Maintenance & Operation › Installation & Testing › Fuel-Flow Meter
Fuel-Flow Meter The fuel-flow meter measures the amount of fuel delivered to the engine. During engine testing procedures, the fuel-flow to the engine can be measured by three different methods: a direct flow meter, a pressure-based ... calibrated tubes located in the control room. The tubes are of various sizes to indicate different volumes of fuel-flow. Each tube contains a float that can be seen by the operator, and as the fuel-flow through the tube…
Aviation Maintenance Technician Handbook - Airframe p. 14-41
Chapter 14: Aircraft Fuel Systems › Fuel System Indicators › Fuel Flow Meters
Figure 14-76. The pressure drop across the fuel injector nozzles is used to represent fuel flow in light reciprocating-engine aircraft. Figure 14-77. A vane-type fuel flow meter. Greater flow volume increases deflection of the vane against ... transmitter replicates the vane shaft rotation on the flight deck indicator that is calibrated in gallons or pounds of fuel flow per hour. Figure 14-78. A mass flow fuel flow indicating system used on turbine-engine aircraft uses…
Pilot's Handbook of Aeronautical Knowledge p. 7-21
Chapter 7: Aircraft Systems › Turbine Engines › Turboshaft
Turboshaft The fourth common type of jet engine is the turboshaft. [Figure…
Aviation Maintenance Technician Handbook - Powerplant p. 8-12
Chapter 8: Engine Removal & Replacement › Preparation of Engine for Ground & Flight Testing › Pre-Oiling
used to pump oil through the engine during the pre-oiling operation. When no external means of pre-oiling an engine are available, the engine oil pump may be used. Fill the engine oil tank, or crankcase, to the proper ... idle cutoff position (reciprocating engine), the fuel shutoff valve and ignition switches in the off position, and the throttles fully open, crank the engine with the starter until the oil pressure gauge mounted on the instrument panel indicates oil pressure…
Aviation Maintenance Technician Handbook - Airframe p. 14-16
Chapter 14: Aircraft Fuel Systems › Aircraft Fuel Systems › Jet Transport Aircraft Fuel Systems
Fuel indicating systems on jet transport aircraft monitor a variety of parameters, some not normally found on general aviation aircraft. Business jet aircraft share many of these features. True fuel flow indicators for each engine are used as the primary ... monitoring fuel delivery to the engines. A fuel temperature gauge is common as are fuel filter bypass warning lights. The temperature sensor is usually located in a main fuel tank. The indicator is located on the instrument panel…