Powerplant Flashcards
What is the engine pressure ratio?
The total pressure ratio between the front of the engine inlet and the aft end of the compressor.
Which instrument condition is acceptable and does not require immediate correction?
Case paint chipped
Options: 1, 4, 5 are acceptable.
What is true about a thermocouple-type temperature indicating instrument system?
It requires no external power source.
How is the indication on a thermocouple-type cylinder head temperature indicator produced?
By a difference in the voltage between two dissimilar metals.
What is true regarding a thermocouple-type cylinder head temperature measuring system?
The voltage output of a thermocouple system is determined by the temperature difference between the two ends of the thermocouple.
What types of electric motors are commonly used in electric tachometers?
Synchronous motors.
In addition to fuel quantity, what does a computerized fuel system (CFS) with a totalizer-indicator provide indication of?
Three
Options: Fuel flow rate, fuel used since reset or initial start-up, fuel time remaining at current power setting.
What is the probable cause of one fuel-flow indicator reading considerably higher than the other in a twin engine aircraft?
One more fuel nozzles are clogged.
What is the principal fault in the pressure type fuel flow meter indicating system?
Lower than normal fuel flow indication.
What does a manifold pressure gauge indicate?
Differential pressure between the intake manifold and atmospheric pressure.
Where is the turbine discharge pressure indicator sensor located in a turbine engine?
At a location in the exhaust cone that is determined to be subjected to the highest pressures.
What is the indication of unregulated power changes that result in continual drift of manifold pressure indication?
Bootstrapping.
Regarding engine pressure ratio (EPR), which statement is true?
Only No. 1 is true.
What will a complete break in the line between the manifold pressure gauge and the induction system indicate?
Zero.
What can be said about thermocouple leads?
Are designed for a specific installation and may not be altered.
