15.14 ENGINE IND SYS Flashcards
what does EGT stand for
exhaust gas temperature
what does TIT stand for
turbine inlet temperature
why is it not easy to measure the turbine inlet temperature
because the temp is so high
what does TGT stand for
turbine gas temp
what does TOT stand for
turbine outlet temp
what is the scale of temps shown on the EGT in the cockpit
0 - 1200 degree celcius
what 3 groups can engine indication be divided into
performance, system, engine trend
what are the secondary engine indications used for
correct operation of engine systems
for engine trend monitoring what 3 different analysis does it use
thermodynamic, mechanical, oil consumption
what does EPR stand for
engine pressure ratio
on the EPR screen what does amber or red mean
maximum available thrust
on the EPR screen what does blue mean
the actual throttle position
what are the 2 main types of oil pressure transmitters
bourdon tube, strain gauge
what 2 different indications does the fuel flow indicating system provide
actual flow, fuel used since engine start
each rotor speed indication has what 3 main parts
sensor, data transmission, indication
how many types of sensor are there that can measure rotor speed
2
whats the EVMU
engine vibration monitoring unit
where are the 2 vibration sensors located in the engines
compressor, turbine
how many vibration sensors are there per engine
2
what 2 types of accelerometers are used to measure vibration
electromagnatic, piezoelectric-crystal
how are torque meters controlled
electrically or hydraulically
a typical torque meter consists of what parts
meter assembly, phase detector, indicator
what is used to operate the hydraulic torque meter
engine oil pressure
