Engine Intrusments Flashcards
(13 cards)
What are three types of flow-indicating systems used for turbine engines?
Vane-type flow meters, synchronous mass-type meters, and electronic motor-less mass flow meters.
What do mass flow systems measure?
The mass of the flow. This is affected by the density of the fuel which is in turn affected by the fuel temperature.
In what units is an electronic motor-less mass flow meter system calibrated?
Pounds per hour of fuel flow.
What is indicated in a turbine engine if a fuel flow for all conditions is high?
If there are other instruments abnormalities, there are possibly damaged turbine components.
Who is authorized to repair a fuel flow indicating system?
The components can be repaired only by an FAA approved repair station certificated for the particular components.
Where can you find the electrical power requirements for a fuel flow indicating system?
In the aircraft maintenance manual.
Where in the fuel system is the fuel flow transmitter located?
Between the fuel control and the fuel nozzles.
What kind of indicator mechanism is used to measure manifold pressure?
A differential bellows.
What should a manifold pressure gauge read when the engine is not operating?
The existing barometric pressure as indicated on the altimeter barometric scale when the altimeter pointers are set to surveyed field elevation.
What type of fitting is used to connect an oil pressure gauge to the engine?
A fitting with a restrictor that smooths out the pulsations and should a break occur in the indicator line, prevents a serious loss of engine oil.
What is used to fill the line between a fuel pressure gauge and the fuel metering system?
A light oil such as kerosine.
What could cause a fuel pressure gauge to fluctuate?
The loss of the light oil in the between the gauge and the engine.
What is the range of pressure needed for a fuel pressure gauge used with a float carburetor?
Normally from 1 to 25 psi.
