Extra Powerplant Questions Flashcards
What is the purpose of a turbine deaerator in an oil tank?
Separating aerated oil from the scavenge pick up.
When an electric primer is used, fuel pressure is built up by the…?
Fuel forced through the engine driven bypass.
When installing a magneto on an engine, the piston in #1 cylinder must be?
Before TDC on compression stroke.
What is not a function of bleed air?
Actuator.
Fuel flow transmitter indicates?
Pounds per hour
What destroys vortices that would otherwise suck debris from the ground into engines mounted in pods low to the ground?
Vortex dissipater.
Carburetor icing is most sever at…?
Air temp below 32 degrees.
What is the purpose of a vortex dissipater?
Destroys vortices that would otherwise suck debris from the ground into engines mounted in pods low to the ground.
A type of propeller vibration in which the ends of the propeller blade twist back and forth at high frequency around an axis perpendicular to the engine crankshaft is known as what?
Fluttering.
How does hydromatic propeller operate?
By use of a double-acting governor that uses oil on both sides of the propeller piston.
Which part of an Aircraft in flight will accumulate ice first?
Fuel discharge nozzle.
Turbine EPR indicator compares which two pressures?
Compressor and turbine wheel.
What is the benefit of using a Hydraulic power pack?
It makes the Hydraulic system lightweight
Part of the ADF (auto direction finder) system used on aircraft includes?
Sense and loop antennas
When a CSD and an alternator are contained within one unit, the assembly is know as…?
An IDG
Which of the following has a direct input on generator output?
Strength of the magnetic field.
Centrifugal twisting forces causes the propeller to?
Move into a low pitch.
When is a hot section performed?
Perodically
How does CO2 extinguish a fire?
By diluting the atmosphere with an inert agent that does not support combustion
What is the probable cause when the starter switch to the turbine starter generator is energised and fails to rotate the engine?
Sheared starter drive coupling.
A safety feature usually employed in direct cranking electric starting systems that is used to disengage the starter from the engine drive is the?
Auto release clutch assembly (drive shaft shear point)
The primary source for oil contamination in a normally operating reciprocating engine is?
Carbon deposits from combustion blow by
Which of the following are used to prevent carburetor icing?
Heat induction air
A low tension circuit is preferred because of?
High amps and Low volts