CHORROSIETE 3 71,72, 70,73,74,75,76,77,78,79

Which compressor sections are BLISC components (Blended Disc)?. LP stages 2 only. HP stages 1, 2 and 5. LP stages 4 and HP stages 5 to 10.

What is the purpose of the vent ejector system?. To provide additional cooling to the number 3 bearing cavity during high engine speeds. To provide a motive flow of air to assist in bearing venting. To remove unwanted fuel from the bleed down manifold during windmilling.

How many stages of HP compressor are there?. 8. 10. 14.

What is indicated when the cowl hold open rod is in the locked position?. A red flag is visible. A yellow band is visible. A green flag is visible.

What indication is given when SOFT reversion has automatically occurred?. There is no indication of soft reversion. The EEC ALTN light on the P5 panel is illuminated. An EICAS status message ‘ENG xx HREV’ is displayed.

Fuel scheduling uses which if the following signals when in a NORMAL mode?. T12, T25 and T30. PT12, PT25 and P40. T12, P25, PS3 and T49.

How is the EEC Reset?. Every landing. By moving the fuel control switches to OFF and then back to RUN. Every time the Hard reversion has been selected.

In normal flight, what powers the EEC?. The Hot Battery Bus. The RMPDC’s. The Permanent Magnet Alternator (PMA).

What is the name of the system used to deliver fuel to the 4 nozzles closest to the ignitors?. Pilot secondary staged (PSEC). Primary Pilot and Main Un-staged (PPMU). Pilot primary and main staged (PPMS).

How many fuel nozzles supply pilot secondary stage fuel?. 16. 18. 22.

Which of the following statements is correct? The Flow Split Valve (FSV): has no position feedback to the EEC and is a pressure sensitive device. has 1 LVDT feedback to channel A only. has 2 EHSV’s and 2 LVDT’s controlled by the EEC (Channel A and B).

Which of the following systems have EHSV’s fitted to the FMU?. CCV, VBV, SAT and EDCV. CCCV, HPTACC, LPTACC, VSV, VBV and TBV. HPTACC, VSV, SBV and TRA control.

Where can you find additional information if an ‘ENG EEC C1 L (R)’ status message is shown?. The Engine exceedance page. The CMCF Correlated maintenance message. By pushing the fuel synoptic page button.

The Electronic Engine Control (EEC) controls the ignition selection function. Which statement is correct?. There are two ignition systems energized by 28 V dc on the engine. The two EEC channels can control each of the systems. There are two ignition systems energized by 28 Volts Alternating Current (VAC) on the engine. EEC channel A only controls each of the systems. There are two ignition systems energized by 115 Volts Alternating Current (VAC) on the engine. The two EEC channels can control each of the systems.

During a flight start, when is ignition removed?. 50% N2. Airspeed increases above 160 knots. T5 sensor reads > 490 degrees.

When are the ignition systems swapped for starting?. Every 1o th start by the EEC. Every time the system is selected A or B from the P5 panel. Every start or a failed 2nd attempt.

On a normal engine ground start, when is ignition started?. 18 seconds after N2 has reached 33%. When N2 reaches 40 %. When N1 is above 12%.

The GEnx-2B engine Booster Anti-ice (BAI) system gives which stage bleed air internal to the booster splitter?. 4th. 6th. 7th.

The Variable Bypass Valve (VBV) system: Actuators are attached to the aft sides of the FHF. The left  at 8 o’clock and right actuator is at at 2 o’clock. Channel B controls both actuators. Actuators are attached to the aft sides of the FHF. The left actuator is at 8 o’clock (Channel B). The right actuator is at 2 o’clock (Channel A). Actuators are attached to the aft sides of the FHF. The left actuator is at 8 o’clock (Channel A). The right actuator is at 2 o’clock (Channel B).

To operate the HPTACC valve, the EEC sends an electrical signal to which component?. FMU TCCACC servo valve. FMU LPTACC servo valve. FMU HPTACC servo valve.

What is the position of the Core cooling valve when in fail safe?. Open. Mid Position. Closed.

How is VBV position measured?. From pressure sensors downstream of the valve doors. VBV position is not measures due it does not modulate. From LVDT’s built into the 2 VBV actuators.

How many individual doors are fitted to the VBV system?. 8. 10. 18.

Where is the location of the TLA resolver?. The auto thrust clutch pack. The thrust control assembly. The EEC.

How is the TLA protected from over movement?. Mechanical stop pins inside the resolver housing. A mechanical bell crank lever stop assembly. The EEC feedback circuits.

Is it recommended to run one engine in the EEC alternate power mode?. Yes, thrust miss-match is still controlled by the EEC. It is deemed acceptable for fight operations only. No, both EEC systems must be selected due to engine power mismatching.

Where can TRA positions be observed?. The EIDU monitor. Visually on the TLA Only. EPCS page 1.

How is N1 exceedance shown on EICAS?. An Amber indication. A Soft reversionary EICAS message. A red box around actual N1 digital readout.

What is the purpose of the Thrust Resolvers?. To give artificial feel to the thrust levers. To give Thrust Lever Angle information to the EEC. To give Thrust Lever Angle information to the Autopilot system.

Which Vibration Data Information is displayed on the Lower EICAS CRT?. N1, or N2 (Whichever Rotor has the highest Vibration amplitude). Broadband only if vibration within limits. N1 Rotor only.

Where is EGT is measured from?. Station 4.8 (48). Station 5.5 (55). The LPT Exhaust exit.

The Thrust Reverser T/R system operates by?. A electro/hydraulic actuator system. A electro/pneumatic actuator system. A mechanical pneumatic actuator system.

The T/R manual drives units: Are not interchangeable between the left and right non-locking actuators. Are not interchangeable between the left and right non-locking and locking actuators. Are interchangeable between the left and right non-locking actuators.

How is the TR system hydraulically deactivated for maintenance purposes?. By the inhibit lever and fitting a pin in the isolation valve spool. By pinning open the HIV Bypass Valve. By unlatching the sync lock lever arms.

What DIRECTLY sends a signal to the isolation solenoid valve to open the valve?. 9 degree switch. EEC. 29 degree switch.

Which of the following statements is correct? The oil tank is: On the left fan case. The oil tank filling cap assembly is attached to the bottom of the oil tank. The tank pressurizing valve is attached to the top of the Debris Monitoring System (DMS) air/oil separator on the oil tank. On the right fan case. The oil tank filling cap assembly is attached to the top of the oil tank. The tank pressurizing valve is attached to the top of the Debris Monitoring System (DMS) air/oil separator on the oil tank. A steel alloy structure. Full level is 25 quarts for the left wing and 24 quarts for the right wing.

Where is the oil Temperature sensor?. On the return line to the oil scavenge pump (close to the Main oil filter). On the pressure line to the main gearbox (close to the N2 tacho generator). In the oil tank (on the quantity sensor housing).

What is the low power position of the eductor valve?. Closed. Mid Modulating. Open.

What condition is NOT monitored during an engine Autostart?. No oil pressure. EGT overtemp (Hot start). Slow N2 rise (Hung start).

The engine starting system turns: The Fan section which then drives the N2 section. The engine High-speed rotor (HPC/HPT) speed (N2) compressor to a percent of Revolutions Per Minute (RPM) at which the engine start can occur. The engine High-speed rotor (IPC/IPT) speed (N1) compressor to a percent of Revolutions Per Minute (RPM) at which the engine start can occur.

How is Dry and Wet motoring achieved?. Through the start switch panel on the P5. Through the test enable switches on the engine. Through the CMCS special functions menu.

What does temp rise effectively measure?. The efficiency of the coolers. The efficiency of the Air oil coolers only. How hard the VFSG is working in the generator mode.

Each main engine has how many electrical starter generators? They each produce how many kVA of power?. 2 variable frequency starter generators, 250 kVA. 2 constant speed generators, 140 kVA. 2 constant speed generators, 250 kVA.

All the airplane electrical generators produce ______ for distribution on the 235v ac bus. Do any aircraft systems use this voltage directly?. 115v dc, no. 250kVA, no. 235v ac, yes.

Where can I observe VFSG Inlet oil temp, oil level and disconnect position?. On the engine performance data pages. On the Electrical Power Maintenance pages. By checking to see if and IFDE has occurred showing ACTIVE.

What N2 speed signals the VSCF to start generating?. 65% N2. 50% N2. 33% N2.

What solenoid is energised on fire detecting?. The squib firing solenoid. The WEU inhibit relay is energised. Fire switch unlock solenoid.

Where are the Engine Fire Bottles located?. In the FWD cargo hold. Wing Leading edge. Aft Cargo Hold.

Activating the engine fire handle closes which of the following fuel valves?. HMU PRSOV. The spar valve and staging valve only. The HMU PRSOV and the Spar valve.

What solenoid is energised on fire detecting?. The squib firing solenoid . The WEU inhibit relay is energised . Fire switch unlock solenoid.

What will generate a status message ‘Fire loop’?. A single fire detector element fault. A double fire detector element fault. An ACIPS card power failure.

The GEnx-2B engine air system controls: The cooling air to the engine and the airflow through the compressor. At the compressor level, vane and valve systems improve compressor performance to prevent compressor stalls. At the turbine level, Active Clearance Control (ACC) decreases the turbine tip clearance. The cooling air to the engine and the airflow through the compressor. At the compressor level, a valve system improves compressor performance to prevent compressor stalls. At the turbine level, Active Clearance Control (ACC) increases the turbine tip clearances. The cooling air to the engine and the airflow through the compressor. At the compressor level, a valve system improves compressor performance to prevent compressor stalls. There is no turbine clearance system.

Where can the Core compartment cooling valve position be observed?. Manually on the valve only. On the EICAS secondary engine page. Manually on the valve and on the EPCS page.

Where does the HPTACC valve muscle supply come from?. The FMU. The EEC. 7 th stage air.

How is the VBV actuators accessed for removal?. By removing the jet pipe assembly. By opening the reverser cowls only. By removing the cover plates on the intermediate casing.

What is the purpose of the Transient Bleed Valve (TBV)?. Open only on start (N2, 64%). Open during starting, rapid deceleration, reverse thrust and high burner pressure conditions. Close when N2 > 95% only.