Propulsion - Engine Indication Systems

Engine pressure ratio, fan speed, torque and manifold pressure are which type of indicators?

• Performance

• Engine condition monitoring

• Flight data

Exhaust gad temperature, fuel flow, compressor speed, oil pressure and temperature gauges are which type of engine indication?

• Performance

• Engine condition monitoring

• Flight data

What does EPR measure?

• Thrust

• Fan speed

• Weight

Tachometer in gas turbine engines will read in?

• Percentage of max RPM

• Rotational speed

• Torque

A triple spool engine tachometers indicate?

• N1 - Fan speed, N2 intermediate pressure compressor and N3 High pressure compressor

• N1 - intermediate pressure compressor, N2 High pressure compressor and N3 Fan speed High pressure compressor

• N1 - High pressure compressor, N2 intermediate pressure compressor and N3 Fan speed

What type of sensor is mounted the the shroud of a fan to measure RPM via the frequency?

• Magnetic pickup

• Freepulse tachometer

• Field generator

In a three phase generator RPM system, which part of the generator signal is critical?

• Frequency

• Voltage

• Current

In a three phase generator RPM system, what is used to turn rotational speed into torque value proportional to speed?

• Flux coupling

• Coil

• Transmitter

What are A and B?

• A= Reference shaft B=Torque shaft

• A=Torque shaft B=Reference shaft

• A=Pivot B=Axial

What is a significant feature of the reference shaft in Torque Shaft indicating systems?

• Not subject to torque

• Disconnected from the engine

• Can withstand significant amounts of torque