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Worksheets9. Airbus A400M Power Plant Lv 2 & 3
Total questions: 88
Worksheet time: 44mins
The APU air intake flap is moved by:
An oil hydraulic actuator
An electromechanical actuator
A pneumatic actuator
A fuel hydraulic actuator
What is the normal indication when APU air intake flap is fully open?
AVAIL on Master Switch
FLAP MOVING on Engine and Warning Display (EWD)
FLAP OPEN on System Display (SD)
AVAIL on System Display (SD)
What is the indication if the APU air intake flap does not open?
FLAP CLOSE on System Display (SD)
FLAP MOVING flashing on Engine and Warning Display (EWD)
APU FAULT on START Switch
APU FAULT on Engine and Warning Display (EWD)
When are the Inlet Guide Vanes (IGV) open?
During the start
During the shutdown
When the APU Bleed Pushbutton is pressed
When the Master switch is pressed
During normal shutdown with APU BLEED ON, the APU goes into a cool down period of:
1 minute
2 minutes
3 minutes
4 minutes
After three consecutive APU start attempts, it is required a cooling period of:
20 minutes
30 minutes
40 minutes
60 minutes
Which one of the following events commands an automatic Protective Shutdown?
APU speed at 101%
APU Fire detection on ground
Low oil level
Low fuel temperature
What is the oil quantity of the APU oil tank at FULL mark?
5.72 liters (6 QT)
7.60 liters (8 QT)
8.60 liters (9 QT)
12 liters (12.6 QT)
Which one of the following nacelle outlets has a flap door?
The Variable Frequency Generator Air Cooled Oil Cooler (VFG ACOC) outlet
The Pneumatic System Precooler outlet
The Engine Air Cooled Oil Cooler (ACOC) outlet
The Exhaust outlet
The engine pylon boxes are made of:
Aluminium
Stainless Steel
Titanium
Bronze
Which one is a Quick Engine Change (QEC) component for Power Plant Build-Up?
Variable Frequency Generator (VFG)
Accessory Gearbox (AGB)
Combustion Chamber
Oil Tank
In case of shaft break condition, what fuel valve is opened to shut down the engine?
The overspeed valve
The pressure relief valve
The fuel filter bypass valve
The fuel metering valve
The Main Fuel Pump (MFP) of the Engine Fuel System:
Is a single stage pump that pressurizes the fuel coming from the tanks before entering the Fuel Metering Unit
Is driven by a pinion of the Power Gear Box (PGB)
Consists of two pumps, LP (Low Pressure) and HP (High Pressure) located in the same housing.
Is driven by a hydraulic turbine receiving hydraulic pressure from both blue and yellow systems.
What is the differential pressure at which the bypass valve of the Main Fuel Filter will open?
Right above 43.5 psi.
There is no bypass valve. The fuel is always forced through the filter by increasing the pressure delivered by the pump.
Right above 14.5 psi.
The bypass valve is always open provided the differential pressure is below 43.5 psi.
How is the Variable Stator Vanes (VSV) actuator operated?
Pneumatically
Electrically
By fuel pressure
By oil pressure.
How are the bearing chambers sealed?
By compressors air pressure
By ram air
By fuel pressure
By water pressure.
How is the Inertial Particle Separator (IPS) flap actuated?
Electrically by 115 VAC
Electrically by 28 VDC
Hydraulically by fuel pressure.
Pneumatically
How is the Engine Anti-ice Valve actuated?
Electrically by 115 VAC
By oil pressure
By fuel pressure
Pneumatically
The turbomachinery oil pump consists of:
3 feed pumps and 3 scavenge pumps
4 feed pumps and 6 scavenge pumps
2 feed pumps and 8 scavenge pumps
3 feed pumps and 6 scavenge pumps
After three consecutive APU start attempts, it is required a cooling period of:
20 minutes
30 minutes
40 minutes
60 minutes
What is the normal propeller speed (NP) in flight (cruise phase)?
195 rpm
655 rpm
730 rpm
860 rpm
Which one of the following power rating pushbuttons is used to reduce the propeller speed in flight?
Low Noise Cruise (LNC)
Maximum Continuous (MCT)
Military Operation (MIL OP)
Low Flight Idle (LFI)
What computer provides the propeller overspeed protection?
Electronic Control Unit (ECU)
Engine Protection and Monitoring Unit (EPMU)
Handling Bleed Valves Control Unit (HBCU)
Autothrust Synchronization Control Unit (ASCU)
Where is the oil transfer tube located?
Inside the Power Gearbox (PGB)
Inside the pitch change actuator
Inside the hub
Inside the Accessory Gearbox (AGB)
How is the propeller main pump operated?
It is mechanically driven by the Power Gearbox (PGB)
It is electrically driven by a 115 VAC motor
It is electrically driven by a 28 VDC motor
It is mechanically driven by the Accessory Gearbox (AGB)
How many propeller sensors are there?
2
8
6
4
What computer provides the autofeather protection?
Electronic Control Unit (ECU)
Engine Protection and Monitoring Unit (EPMU)
Handling Bleed Valves Control Unit (HBCU)
Autothrust Synchronization Control Unit (ASCU)
What propeller is the master for propeller synchrophasing?
Propeller 1
Propeller 2
Propeller 3
Propeller 4
Which of the following is a function of the Engine Protection and Monitoring Unit (EPMU)?
Engine power control
Compressor airflow control
Engine vibration monitoring
Engine oil cooling
When is the Full Authority Digital Engine Control (FADEC) permanently connected?
When the aircraft is in flight
When the FADEC GND PWR pushbutton is pressed
Setting the ENG START rotary selector to NORM position
When the ENG FIRE pushbutton is pressed
How long is the Full Authority Digital Engine Control (FADEC) connected with 115 V on aircraft power up?
For 2 minutes
For 5 minutes
For 30 minutes
For 60 minutes.
How is the Full Authority Digital Engine Control (FADEC) permanently connected with 115 V?
Setting the Engine Master Lever to FEATHER position
When the FADEC GND PWR pushbutton is pressed
Setting the ENG START rotary selector to NORM position
When the ENG FIRE pushbutton is pressed.
The throttle control levers consist of a stop with a lift gate in the following position:
Max REV
Ground Idle (GI)
Flight Idle (FI)
Maximum Climb (MCL).
The throttle control levers position angle is measured by:
Resolvers
Locking solenoids
Autothrust Synchronization Control Unit (ASCU)
Artificial Friction Feel Motors.
The Throttle Transducer Unit (TTU) potentiometers send electrical signals to:
The three PRIM (Primary) Flight Control Computers.
The three PRIM (Primary) Flight Control Computers and the BCM (Back-up Control Module).
The Electronic Control Unit (ECU).
The Engine Protection and Monitoring Unit (EPMU).
Where is the speed sensor NH located?
On the left hand side of the Power Gearbox (PGB)
On the central torque tube
On the right hand side of the Accessory Gearbox (AGB)
On the left hand side of the intermediate casing
Which sensors provide signals for shaft break protection?
Exhaust Gas Temperature (EGT) Thermocouples
Intermediate Pressure Turbine Backing Sensors (IPTBS)
Propeller sensors
Vibration sensors
What will occur if the Shaft break protection is applied?
The propeller pitch will decrease to reduce the loads
The engine will be shutdown and the propeller will feather
The autothrust system will be connected automatically
The pitchlock system will be connected automatlcallv
Which one of the following sentences is correct?
The engine ignition exciter receives 28 VDC from the Engine Protection and Monitoring Unit (EPMU).
The engine ignition exciter is supplied from the Permanent Magnet Alternator (PMA).
The engine ignition exciter converts 28 VDC to 115 VAC.
The engine ignition exciter receives 115 VAC. through the Engine Protection and Monitoring Unit (EPMU).
Which lgniters are selected during an automatic start in flight?
Igniter A only
Igniter B only
Both lgniters, A and B
One only, A or B.
Which one of the following failures provides an engine START FAULT alert?
EGT Overlimit
Engine oil pressure low
Propeller high vibration
Engine oil magnetic chip detected.
During an automatic start on ground, the starter air valve will close at:
N3 = 25%
N3 = 35%
N3 = 50%
N3 = 60%
During a wet crank, the ignition is disconnected at:
N3 = 25%
N3 = 35%
N3 = 50%
Ignition is already OFF.
Which one of the following sentences is correct regarding the Air Turbine Starter (ATS)?
The Air Turbine Starter (ATS) has a sight glass to see the oil level.
The Air Turbine Starter (ATS) oil is refilled by gravity through a filler cap.
The Air Turbine Starter (ATS) oil is filled through a magnetic chip detector port with a syringe.
The Air Turbine Starter (ATS) has an oil level sensor to provide indication on System Display (SD).
How many APU fuel nozzles provide fuel to the combustion chamber?
3 pilot and 6 main nozzles
2 pilot and 4 main nozzles
6 pilot and 3 main nozzles
3 pilot and 3 main nozzles
Which APU component will supply bleed air to the pneumatic system?
Accessory Gearbox (AGB)
Load Compressor
Power Compressor
Turbine
What device provides the feedback position of the Inlet Guide Vane (IGV) actuator to the Electronic Control Box (ECB)?
A Linear Variable Differential Transducer (LVDT)
Position Switch
A differential pressure switch
Resolvers
In case of APU generator oil overtemperature condition, what will happen?
The APU will be shutdown
The fire extinguishing bottle will be discharged
The bleed control valve will open
Inlet guide vanes (IGV) will open
During APU start, the starter and starter motor will be de-energized when the speed reaches:
42%
55%
15%
95%
During the start, when is the AVAIL indication displayed?
At 55% speed
At 75% speed + 2 seconds
At 95% speed + 2 seconds
As long as the FLAP is fully open
Which one of the following events commands an automatic Protective Shutdown?
APU compartment overpressure
APU Fire detection in flight
Bleed Control Valve not open
Overtemperature
The APU oil sump draining procedure is performed through:
The magnetic chip detector port
The oil cooler outlet
The oil supply filter
The oil filler cap
Where is the Inertial Particle Separator (IPS) flap located?
On the right hand side of the nacelle
On the top of the nacelle
On the left hand side of the nacelle
On the bottom of the nacelle
How many rotating shafts are there in the turbomachinery?
One
Two
Three
Four
If the Engine Access Door Hold Open Rods (HOR) are locked in open position, what indication is shown?
A LOCKED indication is shown on System Display (SD)
An AVAIL indication is shown on Engine and Warning Display (EWD)
An OPEN label appears on the lock
A green band appears on the lock.
What is the meaning of the indication "FF" on engine page of System Display (SD)?
Filter Fault
Fuel Flow
Fuel Full
Flap Failure
How is cavitation prevented in the operation of the Main Fuel Pump (MFP)?
By design: MFP is a single centrifugal pump which can never be susceptible to cavitation.
By pressurizing the fuel tanks with nitrogen.
By installing the MFP at the bottom of the fuel tanks.
By using a first pump, LP (Low Pressure), to supply fuel to a second pump, HP (High Pressure).
Which of the following components is the Fuel Metering Unit (FMU) electrically NOT connected to?
Electronic Control Unit (ECU).
Engine Protection and Monitoring Unit (EPMU).
Engine Master Lever (EML).
High Pressure Shut Off Valve (HPSOV).
Which stage of the High Pressure Compressor (HPC) is used to open the Handling Bleed Valves (HBV)?
Stage 3
Stage 4
Stage 5
Stage 6
How many Handling Bleed Control Units (HBCU) are there?
Two
Three
Four
Five
The engine Air Cooled Oil Cooler (ACOC) ejector receives air from:
High Pressure Compressor (HPC) Stage 3
Intermediate Pressure Compressor (IPC) Stage 4
Intermediate Pressure Compressor (IPC) Stage 5
High Pressure Compressor (HPC) Stage 6
The Inertial Particle Separator (IPS) flap is closed in the following condition:
Landing
Take Off
Ground Operations
Engine Master Lever at OFF
Which one of the following sentences about the engine oil is correct?
The Auxiliary Tank has a sight glass level indicator
The Power Gearbox (PGB) sump incorporates an oil level sensor
The oil tank incorporates an oil level sensor
The Accessory Gearbox (AGB) has a sight glass level indicator
What is the maximum quantity of the engine oil in the oil system?
50 liters
65 liters
72 liters
90 liters
Which one is used to control the feather valve of the Propeller Control Module (PCM)?
Engine Master Lever
Engine Protection and Monitoring Unit (EPMU)
Electronic Control Unit (ECU)
Autothrust Synchronization Control Unit (ASCU)
What is the minimum pitch in flight?
1 degrees
-4 degrees
16 degrees
30 degrees
What is the normal propeller speed (NP) during normal take-off?
195 rpm
655 rpm
730 rpm
842 rpm
What is the maximum pitch in BETA mode?
1 degrees
-4 degrees
16 degrees
83 degrees
How is the propeller auxiliary pump operated?
It is mechanically driven by the Power Gearbox (PGB)
It is electrically driven by a 115 VAC motor
It is electrically driven by a 28 VDC motor
It is mechanically driven by the Accessory Gearbox (AGB)
What is the function of the propeller sensors?
To measure the propeller speed (NP) and pitch
To measure the torque (TQ) and Power (PWR)
To measure the compressors speeds (NI) and (NH)
To measure the speed of the low pressure turbine (NL) and torque (TQ)
When is the autofeather protection at high power mode required?
For Landing phase
For Take Off phase
For Cruise phase
For Taxi phase
Which is the propeller posltlon for propeller removal task?
Feather
Flight Idle
Full Reverse
Any position
Which communication bus is used to share data between ECUs for propeller synchrophasing?
ARINC 429 bus
CAN bus
AFDX bus
RS 485 bus
When is the Full Authority Digital Engine Control (FADEC) permanently connected with 115 V?
When the aircraft is on jacks
When the FADEC GND PWR pushbutton is pressed
Setting the ENG START rotary selector to NORM position
When the Engine Master Lever is set at OFF
How is the Full Authority Digital Engine Control (FADEC} permanently connected with 115 V?
When aircraft power up
When the FADEC GND PWR pushbutton is pressed
Setting the ENG START rotary selector to CRANK position
When the ENG F.IRE pushbutton is pressed.
How is the Full Authority Digital Engine Control (FADEC) connected with 115 V for 5 minutes only?
Setting the Engine Master Lever to RUN position
When the FADEC GND PWR pushbutton is pressed
Setting the ENG START rotary selector to IGN/START position
When the ENG FIRE pushbutton is pressed.
What is the function of the throttle levers locking solenoids?
To provide a variable detent for autothrust
To prevent the throttle levers from being retarded below ground idle in flight
To lock the rotation of the propeller after shutdown
To lock the pitch change actuator in case of pressure loss.
In beta mode, how is the pitch demand calculated for the actual TLA (Throttle Lever Angle)?
By linear interpolation between Flight Idle (Fl) and TOGA (Take Off and Go Around) pitches.
By linear interpolation between Flight Idle (Fl) and MCL (Maximum Climb) pitches.
In beta mode, the propeller blade pitch is always fixed to 10 degrees.
By linear interpolation between Ground Idle (GI) and Flight Idle (Fl) pitches.
How is the power demand calculated when the EML (Engine Master Lever) is set to FEATHER position?
By linear interpolation between Ground Idle (GI) and Flight Idle (Fl) power
By linear interpolation between Maximum Reverse (MAX REV) power and Ground Idle (GI) power
By linear interpolation between Flight Idle (Fl) and Maximum Climb (MCL) power
In FEATHER position the rated power is always zero.
Which of the following parameters is not required to calculate the rated power for the throttle lever detents?
Air data
Engine limitations
Aircraft weight
Bleeds in operation
Which sensors supply signals to show the Engine Power indication?
Propeller sensors
NH sensors
Fuel Flow meters
Torque Sensors
Which sensors supply signals to show the indication of the intermediate pressure shaft speed (N2) and overspeed protection?
NL sensors
NH sensors
NI sensors
Torque Sensors
What computer provides the Thrust Control Malfunction (TCM) protection?
Electronic Control Unit (ECU)
Handling Bleed Control Unit (HBCU)
Autothrust Synchronization Control Unit (ASCU)
Engine Protection and Monitoring Unit (EPMU)
Which igniters are selected during a manual start on ground?
Igniter A only
Igniter B only
Both lgniters, A and B
One only, A or B
What Is the normal indication after an engine successful start?
ON light on Engine Master Lever
AVAIL message on the Power indication
RUN message on Engine and Warning Display (EWD)
OPEN message In the Starter Air Valve indication.
What Is the sequence to perform an automatic start in flight?
Engine Start Rotary Selector at CRANK and Engine Master Lever at RUN
Engine Start Rotary Selector at NORM and Engine Manual Start pushbutton set to ON
Engine Start Rotary Selector at IGN/START and Engine Master Lever at FTHR
Engine Start Rotary Selector at NORM and Engine Master Lever at RUN
What should the position of the engine throttle levers be before engine shutdown on ground?
GI (Ground Idle)
Fl (Flight Idle)
Maximum Climb (MCL)
Maximum Reverse.
In cold weather conditions, how does the Starter Air Valve manually unlock?
Turning towards open no more than 30 degrees
Turning to fully open position
Turning towards open until a visual green indication is shown
Turning towards open until N3 reaches 50%
