Q8 Propeller Control Flashcards
What does the spring do on a single acting PCU on a Light Twin engined aircraft
Select one:
1.Controls the Beta Range
2.Fines off the propeller
3.Senses RPM
4.Coarsens the propeller
4.Coarsens the propeller
What 2 parameters will you use to set Take Off power on a piston engined aircraft with a Variable Pitch Propeller?Select one:
1.Mixture and RPM
2.RPM and EGT
3.RPM and MAP
4.MAP and Mixture
3.RPM and MAP
Select the components that make up a Constant Speed Propeller system.
Select one or more:
1.PCU
2.PSU
3.Speeder Spring
4.Lander Valve
5.Electrical Pump
6.Governor
7.Engine Driven HP Oil Pump
8.Landed Valve (Pilot Valve)
9.CSU
1.PCU
3.Speeder Spring
6.Governor
7.Engine Driven HP Oil Pump
8.Landed Valve (Pilot Valve)
9.CSU
Which component senses the propeller speed?
Select one:
1.Pilot Valve
2.CSU
3.PCU
4.Single Acting Actuator
2.CSU
You are flying a single engined aircraft with a single acting variable pitch propeller. What would happen to the propeller if you lost Propeller Oil Pressure?
Select one:
1.It would fine off to a minimum usable blade angle, and then feather automatically.
2.It would fine off to maximum blade angle, allowing you to circuit and land under power.
3.It would fine off to a minimum usable blade angle, allowing you to circuit and land under power.
4.It would coarsen off to a minimum usable blade angle, allowing you to circuit and land under power.
3.It would fine off to a minimum usable blade angle, allowing you to circuit and land under power.
What component would you need to restart an engine with a feathered propeller on a multi engined aircraft.
Select one:
1.Power Valve
2.Engine driven Feather pump
3.Mixture control.
4.Electrical Feather Pump
4.Electrical Feather Pump
What is fitted to a Twin Engined aircraft with Single Acting PCUs to prevent feathering on shut-down.
Select one:
1.Feather Stops
2.Alpha Enhancers
3.Beta Blockers
4.Centrifugal latches (or stops)
4.Centrifugal latches (or stops)
Why is it necessary to fit a reduction gear between some engines and propellers?
Select one:
1.Because the Propeller needs to turn at a slower speed than the engine during Take Off until climb power is selected
2.Because the Propeller needs to turn at a slower speed than the engine, especially with Turbo Props.
3.Because the Propeller needs to turn at a faster speed than the engine, especially with Turbo Props.
4.Because all Propellers work better with a reduction gearbox.
2.Because the Propeller needs to turn at a slower speed than the engine, especially with Turbo Props.
When you push the throttle forward you
[ ]fuel flow into the engine.
This causes an
[ ] in engine power.
This in turn tries to increase the
[ ] which is sensed by the [ ] and causes the [ ] to
[ ] the propeller which brings the RPM
[ ] to the level set by the [ ].
When you push the throttle forward you [increase] fuel flow into the engine. This causes an [increase] in engine power.
This in turn tries to increase the
[RPM] which is sensed by the [CSU] and causes the [PCU] to
[Coarsen] the propeller which brings the RPM
[back down] to the level set by the [RPM Lever].
Which of the below describes the Beta Range of operation?
Select one:
1.When the blade angle is anywhere between Reverse and Feather
2.When the blade angle is anywhere between Reverse and Ground Fine.
3.When the blade angle is anywhere between Feather and Flight Fine.
4.When the blade angle is anywhere between Reverse and Flight Fine.
4.When the blade angle is anywhere between Reverse and Flight Fine.
In the Beta Range
Select one:
1.You control the fuel and the CSU and RPM lever decide the Blade Angle.
2.You control the Fuel and blade angle.
3.You decide the blade angle and the engine automatically controls RPM
4.The blade angle and fuel are automatically decided by the CSU and PCU in conjunction with the quill tray modulator.
3.You decide the blade angle and the engine automatically controls RPM
If your TAS were to increase, what affect would it have on the AoA of a fixed pitch propeller
Select one:
1.It would reduce
2.It would remain constant thanks to the PCU
3.It would remain constant thanks to the CSU
4.It would increase
1.It would reduce
