[ { "part": "ATA 71: POWER PLANT", "ch": "The PDOS system has a malfunction. How do you open T/REV cowls?: (B1)", "ansGr": [ { "ans": [ "Use airplane electrical power to bypass the power pack ", "false" ] }, { "ans": [ "Use an external hydraulic pump tool connect to the PDOS power pack ", "true" ] }, { "ans": [ "Manual lift cowls to open ", "false" ] } ], "ref": "REF: Powerplant, Engine, Fuel & Control, and Engine Controls - Powerplant Book 2 of 3, GEnx" }, { "ch": "What hydraulic system uses for PDOS system: (B1)", "ansGr": [ { "ans": [ "Onside hydraulic system ", "false" ] }, { "ans": [ "Center hydraulic system ", "false" ] }, { "ans": [ "Independent hydraulic system ", "true" ] } ], "ref": "REF: Powerplant, Engine, Fuel & Control, and Engine Controls - Powerplant Book 2 of 3, GEnx Engine, GE Engines - Power Plant, page 38." }, { "ch": "GEnx for 787 can maintain a high internal engine pressure ratios (9.5:1) due to: (A, B1, B2)", "ansGr": [ { "ans": [ "The improvement of the specific fuel consumption. ", "false" ] }, { "ans": [ "The fact that there is no external engine air bleeds taken for aircraft. ", "true" ] }, { "ans": [ "Chevron shape on the exit edge of the thrust reverser translating sleeves. ", "false" ] } ], "ref": "Reference: Page 10/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "GEnx anti-ice system includes: (A, B1, B2)", "ansGr": [ { "ans": [ "A booster intake anti-ice (BAI) system and an engine intake anti-ice (EAI) system. ", "true" ] }, { "ans": [ "An engine intake anti-ice (EAI) system and a turbine anti-ice (TAI) system ", "false" ] }, { "ans": [ "A booster intake anti-ice (BAI) system and a turbine anti-ice (TAI) system. ", "false" ] } ], "ref": "Reference: Page 10/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "The purpose of chevrons on the exit edges of the thrust reverser translating sleeves is: (A, B1, B2)", "ansGr": [ { "ans": [ "To reduce weight. ", "false" ] }, { "ans": [ "To gradually mix the bypass airflow with the atmospheric air to decrease noise levels. ", "true" ] }, { "ans": [ "To minimize the chance of lightning strike. ", "false" ] } ], "ref": "Reference: Page 20/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "The fan cowls weigh 68kg each and are:(A, B1, B2)", "ansGr": [ { "ans": [ "Interchangeable between engines. ", "false" ] }, { "ans": [ "NOT interchangeable between engines. ", "true" ] }, { "ans": [ "Interchangeable between LH and RH of the engine. ", "false" ] } ], "ref": "Reference: Page 26/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "The fan cowls are attached to(A, B1, B2)", "ansGr": [ { "ans": [ "Fan Cowl Support Beam (FCSB) with 03 hinges. ", "false" ] }, { "ans": [ "Fan Cowl Support Beam (FCSB) with 04 hinges. ", "true" ] }, { "ans": [ "Fan case with 04 hinges. ", "false" ] } ], "ref": "Reference: Page 26/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "GEnx is equipped with The fan cowls are attached to(A, B1, B2)", "ansGr": [ { "ans": [ "01 PDOS control switch for each cowl. ", "true" ] }, { "ans": [ "02 PDOS control switch for each cowl. ", "false" ] }, { "ans": [ "04 PDOS control switch for fan cowls. ", "false" ] } ], "ref": "Reference: Page 42/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "Engine cowl is held in the OPEN position by: (A, B1, B2)", "ansGr": [ { "ans": [ "Hold-open rod. ", "false" ] }, { "ans": [ "PDOS actuator internal compression lock. ", "false" ] }, { "ans": [ "PDOS actuator internal compression lock and hold-open rod as well as a safety device during maintenance actions. ", "true" ] } ], "ref": "Reference: Page 42,58/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "PDOS power pack is serviced with: (A, B1, B2)", "ansGr": [ { "ans": [ "Engine oil with all cowls CLOSE. ", "true" ] }, { "ans": [ "Engine oil with all cowls OPENPDOS actuator internal compression lock. ", "false" ] }, { "ans": [ "Exxon Mobil HyJet V - HYJET V. ", "false" ] } ], "ref": "Reference: Page 50/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "Fan cowl can be open or close with a manual (with external hydraulic hand pump) method. To do this you need to get access to quick-disconnect located(A, B1, B2)", "ansGr": [ { "ans": [ "At the fan cowl opening actuator. ", "false" ] }, { "ans": [ "At the PDOS power pack. ", "true" ] }, { "ans": [ "On the Inlet cowl aft wall. ", "false" ] } ], "ref": "Reference: Page 94/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "Which engine mount transmit the thrust loads to the strut? (A, B1, B2)", "ansGr": [ { "ans": [ "Forward mount. ", "false" ] }, { "ans": [ "Both mounts. ", "false" ] }, { "ans": [ "Aft mount. ", "true" ] } ], "ref": "Reference: Page 98/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "part": "ATA 72: ENGINE", "ch": "Which of the following statements is NOT true: (A, B1, B2)", "ansGr": [ { "ans": [ "The HP rotates clockwise as viewed from front. ", "true" ] }, { "ans": [ "The GEnx engine has counter rotating low pressure (LP) and high pressure (HP) rotors. ", "false" ] }, { "ans": [ "The LP rotates clockwise as viewed from the front. ", "false" ] } ], "ref": "Reference: Page 156/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "Which of the following is NOT part of LP rotor: (A, B1, B2)", "ansGr": [ { "ans": [ "Single-stage fan and 4-stage booster low pressure compressor. ", "false" ] }, { "ans": [ "7-stage low pressure turbine. ", "false" ] }, { "ans": [ "10-stage low pressure turbine. ", "true" ] } ], "ref": "Reference: Page 156/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "Which of the following is NOT part of HP rotor: (A, B1, B2)", "ansGr": [ { "ans": [ "10-stage high pressure compressor. ", "false" ] }, { "ans": [ "2-stage high pressure turbine. ", "false" ] }, { "ans": [ "7-stage high pressure compressor. ", "true" ] } ], "ref": "Reference: Page 156/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "Exhaust Gas Temperature is measured at station: (A, B1, B2)", "ansGr": [ { "ans": [ "48 - HPT exit. ", "true" ] }, { "ans": [ "3 – HPC exit. ", "false" ] }, { "ans": [ "5 – LPT exit. ", "false" ] } ], "ref": "Reference: Page 160/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "Which stages of HPC are BLISKs? (A, B1, B2)", "ansGr": [ { "ans": [ "2, 3, 5. ", "false" ] }, { "ans": [ "1, 2, 5. ", "true" ] }, { "ans": [ "2, 4, 5. ", "false" ] } ], "ref": "Reference: Page 178/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "Which of the following is the advantage of GEnx lean combustor: (A, B1, B2)", "ansGr": [ { "ans": [ "The lean combustor uses a shorter length inner and outer single piece liner to minimize long term vibration distress and fatigue. ", "true" ] }, { "ans": [ "The lean combustor increases the number of dilution holes to remove stress concentrations to decrease liner cracks. ", "false" ] }, { "ans": [ "The lean combustor gives higher engine exhaust gas temperature (EGT). ", "false" ] } ], "ref": "Reference: Page 182/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "GEnx combustor has(A, B1, B2)", "ansGr": [ { "ans": [ "24 fuel nozzles. ", "false" ] }, { "ans": [ "30 fuel nozzles. ", "false" ] }, { "ans": [ "22 fuel nozzles. ", "true" ] } ], "ref": "Reference: Page 182/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "GEnx combustor nozzles are(A, B1, B2)", "ansGr": [ { "ans": [ "Twin-annular premixing swirler (TAPS) type. ", "true" ] }, { "ans": [ "Duplex type. ", "false" ] }, { "ans": [ "Double-action type. ", "false" ] } ], "ref": "Reference: Page 182/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "part": "ATA 73: ENGINE FUEL AND CONTROL", "ch": "What statement is True? (B1)", "ansGr": [ { "ans": [ "The main function of the engine fuel and control system sends fuel to fuel operated valves and actuators. ", "false" ] }, { "ans": [ "Fuel from the aircraft goes to the high-pressure gear element of the MFP before centrifugal boost pump in the main fuel pump (MFP). ", "false" ] }, { "ans": [ "The main function of the engine fuel and control system is to control the fuel to the combustion chambers in response to commanded power. ", "true" ] } ], "ref": "Ref: Engine Fuel and Control - General ATA 73, MTM" }, { "ch": "Purpose of the fuel metering unit (FMU): (B1)", "ansGr": [ { "ans": [ "The fuel metering unit (FMU) supplies the correct quantity of fuel necessary for combustion. The FMU also supplies servo fuel for valves and actuators and it supplies the fuel shutoff function. ", "true" ] }, { "ans": [ "The fuel metering unit (FMU) supplies the correct quantity of fuel necessary for combustion. The FMU also supplies servo fuel for valves and actuators. ", "false" ] }, { "ans": [ "The fuel metering unit (FMU) supplies the correct quantity of fuel necessary for combustion. ", "false" ] } ], "ref": "Ref: Engine Fuel and Control - Distribution ATA 73, MTM" }, { "ch": "How is the HPSOV commanded closed by the run cutoff switches when the engine is shutdown? (B1)", "ansGr": [ { "ans": [ "When the engine is shutdown, the HPSOV is closed with spring pressure. ", "false" ] }, { "ans": [ "When the run cutoff switches are moved to cutoff, the SOSV gets a command to close the HPSOV using servo fuel pressure. ", "true" ] }, { "ans": [ "The bypass valve closes so fuel from the fuel metering valve can go to the low pressure side of the fuel pump that will close the HPSOV. ", "false" ] } ], "ref": "Ref: Engine Fuel and Control - Distribution ATA 73, MTM" }, { "ch": "What statement is True? (B1)", "ansGr": [ { "ans": [ "The flow split valve (FSV) is an EEC controlled servo operated valve. The FSV is located on the fuel adaptor on the accessory gearbox. ", "true" ] }, { "ans": [ "The flow split valve (FSV) is an MECD controlled servo operated valve. The FSV is located on the fuel adaptor on the accessory gearbox. ", "false" ] }, { "ans": [ "The flow split valve (FSV) is an EEC controlled servo operated valve. The FSV is located on the fan case. ", "false" ] } ], "ref": "Ref: Engine Fuel and Control - Distribution ATA 73, MTM" }, { "ch": "What are fuel nozzle position numbers on the engine? (B1)", "ansGr": [ { "ans": [ "Fuel nozzles have position numbers in a counter clockwise sequence, looking forward. Fuel nozzle number 1 is at the 12:00 position. ", "false" ] }, { "ans": [ "Fuel nozzles have position numbers in a clockwise sequence, looking forward. Fuel nozzle number 1 is at the 6:00 position. ", "false" ] }, { "ans": [ "Fuel nozzles have position numbers in a clockwise sequence, looking forward. Fuel nozzle number 1 is at the 12:00 position. ", "true" ] } ], "ref": "Ref: Engine Fuel and Control - Distribution ATA 73, MTM" }, { "ch": "In the fuel control system, Electronic engine control (EEC) is: (B1)", "ansGr": [ { "ans": [ "The EEC is the primary component in the fuel control system. This is a 2 channel computer system, channel A and channel B. ", "true" ] }, { "ans": [ "The EEC uses the control alternator stator and rotor component as the secondary power source. Airplane power is a primary power source. ", "false" ] }, { "ans": [ "The EEC is the secondary component in the fuel control system. This is a 2 channel computer system, channel A and channel B. ", "false" ] } ], "ref": "Ref: Engine Fuel and Control - Distribution ATA 73, MTM" }, { "ch": "Which statement is True during engine fuel element installation? (B1)", "ansGr": [ { "ans": [ "Only tighten the fuel filter bowl with your hand. ", "false" ] }, { "ans": [ "Have to use torque wrench when you tighten the fuel filter bowl. ", "false" ] }, { "ans": [ "Firstly use your hand to tighten the fuel filter bowl if you are not able to correctly install it then use a torque wrench less than 50 ft-lb. ", "true" ] } ], "ref": "Ref. DMC B787-A-G73-11-02-00B-720A-A." }, { "ch": "The unit that control the fuel flow is called: (A, B1, B2)", "ansGr": [ { "ans": [ "FMU. ", "true" ] }, { "ans": [ "HMU. ", "false" ] }, { "ans": [ "HCU. ", "false" ] } ], "ref": "Reference: Page 232/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "Fuel is used to cool oil in: (A, B1, B2)", "ansGr": [ { "ans": [ "Main Fuel/Oil Heat Exchanger (FOHE). ", "false" ] }, { "ans": [ "Dual VFSG Fuel/Oil Heat Exchanger (FOHE). ", "false" ] }, { "ans": [ "Dual VFSG Fuel/Oil Heat Exchanger (FOHE) and Main FOHE. ", "true" ] } ], "ref": "Reference: Page 232/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "After Fuel Metering Unit (FMU) fuel is divided to the manifolds by(A, B1, B2)", "ansGr": [ { "ans": [ "Fuel Staging Valve. ", "false" ] }, { "ans": [ "Fuel Split Valve (FSV). ", "true" ] }, { "ans": [ "Fuel Flow Divider. ", "false" ] } ], "ref": "Reference: Page 232/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "Which of the following statement is TRUE: (A, B1, B2)", "ansGr": [ { "ans": [ "At start, the Fuel Metering Valve (FMV) lets fuel go from the Bypass Valve (BPV) through the FMV to the jet pump and heat exchangers. ", "true" ] }, { "ans": [ "As the engine increases in speed for start, the FMV increases the quantity of the fuel to the BPV ", "false" ] }, { "ans": [ "The BPV controls the position of the FMV. ", "false" ] } ], "ref": "Reference: Page 252/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "Which of the following manifolds always supplies fuel to all 22 fuel nozzles: (A, B1, B2)", "ansGr": [ { "ans": [ "Pilot primary and main un-staged (PPMU). ", "false" ] }, { "ans": [ "Pilot primary and main staged (PPMS). ", "false" ] }, { "ans": [ "Pilot secondary (PSEC). ", "true" ] } ], "ref": "Reference: Page 260/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "The fuel nozzles are set at equal spaces around the circumference of the combustor and numbered in a(A, B1, B2)", "ansGr": [ { "ans": [ "Clockwise sequence, looking forward with number 1 is at the 12:00 position. ", "true" ] }, { "ans": [ "Counter-clockwise sequence, looking forward with number 1 is at the 12:00 position. ", "false" ] }, { "ans": [ "Clockwise sequence, forward looking aft with number 1 is at the 12:00 position. ", "false" ] } ], "ref": "Reference: Page 264/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "When does EEC get power from Permanent Magnetic Alternator (PMA) (A, B1, B2)", "ansGr": [ { "ans": [ "N2 >= 5%. ", "false" ] }, { "ans": [ "N2 >= 8%. ", "true" ] }, { "ans": [ "N2 >= 7%. ", "false" ] } ], "ref": "Reference: Page 276,288/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "What information does engine rating plug provide to EEC? (A, B1, B2)", "ansGr": [ { "ans": [ "Engine rating and N2 trim levels. ", "false" ] }, { "ans": [ "Engine rating and N2 levels. ", "false" ] }, { "ans": [ "Engine rating and N1 trim levels. ", "true" ] } ], "ref": "Reference: Page 284/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "part": "ATA 74/80: IGNITION/STARTING", "ch": "What statement is True? (B1)", "ansGr": [ { "ans": [ "The ignition system supplies electrical sparks in the combustion chamber to start combustion and to make sure that combustion continues. ", "true" ] }, { "ans": [ "Each engine has 2 ignition systems that operate dependently. ", "false" ] }, { "ans": [ "The ignition system is automatic or manual and will energize on the ground and in flight. ", "false" ] } ], "ref": "Ref: Ignition - General ATA 74, MTM" }, { "ch": "How do ignition systems work? (B1)", "ansGr": [ { "ans": [ "The ignition exciter changes the 115v ac source and sends high energy pulses through the ignition leads to the igniters. ", "false" ] }, { "ans": [ "During an autostart when engine speed gets to 33% N2, the EEC starts an 18 times. After 18 times, the EEC turns on ignition. ", "false" ] }, { "ans": [ "During subsequent starts, the EEC changes between ignition systems every 2nd start attempt. For example, it will use system 1 for 2 start attempts then system 2 for 2 start attempts. ", "true" ] } ], "ref": "Ref: Ignition – General Description ATA 74, MTM" }, { "ch": "What statement is True? (B1)", "ansGr": [ { "ans": [ "Main engine start is usually from the APU auxiliary starter generators (ASG). The ASGs supply 135v ac. If the ASGs are not available, 115v ac external power sources supply the power. ", "false" ] }, { "ans": [ "With 2 forward EP sources, engine start is supported, however, all non essential loads will be shed. ", "true" ] }, { "ans": [ "With 2 forward EP sources will not support engine start because there is not sufficient power. ", "false" ] } ], "ref": "Ref: starting – Power Sources ATA 80, MTM" }, { "ch": "These are the indications when you start engine: (B1)", "ansGr": [ { "ans": [ "The start switch set to START and fuel control switch set to RUN – red text AUTOSTART shows over N2 display of the starting engine. ", "false" ] }, { "ans": [ "At stable idle tick mark, white AUTOSTART changes to green RUNNING. When the engine is at stable idle of approximately 66% N2 (approximately 30 seconds), the RUNNING text Is removed and no text shows over N2 in that position. ", "true" ] }, { "ans": [ "At stable idle tick mark, white AUTOSTART changes to green RUNNING. When the engine is at stable idle of approximately 33% N2 (approximately 30 seconds), the RUNNING text Is removed and no text shows over N2 in that position. ", "false" ] } ], "ref": "Ref: starting – Normal Ground Start ATA 80, MTM" }, { "ch": "During subsequent starts, the EEC changes between ignition systems every 2nd start attempt, that means(A, B1, B2)", "ansGr": [ { "ans": [ "It will use system 1 for 2 start attempts then system 2 for 2 start attempts. ", "true" ] }, { "ans": [ "It will use system 1 for 1 start attempt then system 2 for 1 start attempt. ", "false" ] }, { "ans": [ "It will use system 1 for 2 start attempts then system 2 for 1 start attempt. ", "false" ] } ], "ref": "Reference: Page 224/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "The exciters are cooled by: (A, B1, B2)", "ansGr": [ { "ans": [ "CCC valve cooling air. ", "false" ] }, { "ans": [ "Under cowl compartment cooling air. ", "false" ] }, { "ans": [ "Fan air. ", "true" ] } ], "ref": "Reference: Page 228/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "The ignition system components are on the …… side of the engine: (A, B1, B2)", "ansGr": [ { "ans": [ "RH. ", "false" ] }, { "ans": [ "LH. ", "true" ] }, { "ans": [ "Bottom. ", "false" ] } ], "ref": "Reference: Page 240/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "Which of the following is NOT true: (A, B1, B2)", "ansGr": [ { "ans": [ "The engine start system is an auto-start system. ", "false" ] }, { "ans": [ "There is no manual start mode. ", "false" ] }, { "ans": [ "The AUTO start switch is normally in the ON position. ", "true" ] } ], "ref": "Reference: Page 246/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "During GEnx engine start: (A, B1, B2)", "ansGr": [ { "ans": [ "The air starter turns the engine N2 rotor through the accessory drive gearbox. ", "false" ] }, { "ans": [ "The VFSG turns the engine N2 rotor through the accessory drive gearbox. ", "true" ] }, { "ans": [ "The pneumatic starter turns the engine N2 rotor through the accessory drive gearbox. ", "false" ] } ], "ref": "Reference: Page 246/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "During normal engine start: (A, B1, B2)", "ansGr": [ { "ans": [ "Only 01 VFSG is used. ", "false" ] }, { "ans": [ "Both VFSG are used. ", "true" ] }, { "ans": [ "The VFSG will take turn to start the engine. ", "false" ] } ], "ref": "Reference: Page 248/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "Which of the following power configuration is the minimum requirement for engine start(A, B1, B2)", "ansGr": [ { "ans": [ "2 forward (90 KVA) External Power (EP) sources. ", "true" ] }, { "ans": [ "Only 1 EP source. ", "false" ] }, { "ans": [ "1 forward EP and the aft EP source. ", "false" ] } ], "ref": "Reference: Page 248/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "During engine start, the EEC releases the start switch to the NORM position(A, B1, B2)", "ansGr": [ { "ans": [ "At 50% N2 when the EEC turns off ignition. ", "false" ] }, { "ans": [ "At 65% N2. ", "true" ] }, { "ans": [ "At 75% N2. ", "false" ] } ], "ref": "Reference: Page 260/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "part": "ATA 75: AIR", "ch": "What is the sub-system of engine air system: (A,B1)", "ansGr": [ { "ans": [ "Booster anti-ice (BAI), Compressor control, Engine cooling ", "true" ] }, { "ans": [ "Turbine case cooling system, Transient bleed system ", "false" ] }, { "ans": [ "VBV system, VSV system ", "false" ] } ], "ref": "Ref: Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing - Powerplant Book 3 of 3, GEnx Engine, GE Engines – Air, page 150." }, { "ch": "What are the difference between CCC valve and LPTACC valve/HPTACC valve: (B1)", "ansGr": [ { "ans": [ "They are the same, all are butterfly type valve. ", "false" ] }, { "ans": [ "CCC valve is butterfly type with spring-loaded to the open position; LPTACC/HPTACC valve is butterfly type with spring- loaded to the closed position. ", "true" ] }, { "ans": [ "Servo fuel moves CCC valve to the open position, but moves LPTACC/HPTACC valve to the closed position. ", "false" ] } ], "ref": "Ref: Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing - Powerplant Book 3 of 3, GEnx Engine, GE Engines – Air, page 178,182,186." }, { "ch": "What is the purpose of the compressor control system: (B1)", "ansGr": [ { "ans": [ "The compressor control system matches low pressure compressor (LPC) and high pressure compressor (HPC) airflows to increase compressor performance and to prevent engine stall.In flight. ", "true" ] }, { "ans": [ "The compressor control system matches low pressure compressor (LPC) and high pressure compressor (HPC) airflows to decrease the temperature of the engine core compartment and the high and low pressure turbine cases. ", "false" ] }, { "ans": [ "The compressor control system matches low pressure compressor (LPC) and high pressure compressor (HPC) airflows to increase the airflow of the engine core compartment . ", "false" ] } ], "ref": "Ref: Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing - Powerplant Book 3 of 3, GEnx Engine, GE Engines – Air, page 190." }, { "ch": "How does EEC control the BAI valve: (B1,B2)", "ansGr": [ { "ans": [ "The EEC gets signals from PS3 sensor and uses an icing schedule to calculate conditions for control of the valve. ", "false" ] }, { "ans": [ "The EEC gets signals from P0 sensor and uses an icing schedule to calculate conditions for control of the valve. ", "false" ] }, { "ans": [ "The EEC gets signals from the airplane systems and uses an icing schedule to calculate conditions for control of the valve. ", "true" ] } ], "ref": "Ref: Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing - Powerplant Book 3 of 3, GEnx Engine, GE Engines – Air, page 156." }, { "ch": "What air souce is used by HPT and LPT ACC valves to cool the turbine case : ( B1)", "ansGr": [ { "ans": [ "Fan air ", "true" ] }, { "ans": [ "LPC 4th stage air ", "false" ] }, { "ans": [ "HPC 7th stage air ", "false" ] } ], "ref": "Ref: Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing - Powerplant Book 3 of 3, GEnx Engine, GE Engines – Air, page 182,182." }, { "ch": "The booster anti-icing (BAI) system uses 7th stage air from the airplane engine anti-ice (EAI) system to send heat to the booster splitter. Which of the following is TRUE: (A, B1, B2)", "ansGr": [ { "ans": [ "BAI valve is controlled by EMU. ", "false" ] }, { "ans": [ "There is no flight deck control for the system. ", "true" ] }, { "ans": [ "EAI valve need to be closed for BAI valve operation. ", "false" ] } ], "ref": "Reference: Page 156/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "The core compartment cooling (CCC) valve sends cooling air from the fan/booster bypass ducts to components on the engine core case. It is(A, B1, B2)", "ansGr": [ { "ans": [ "Spring loaded to OPEN position. ", "true" ] }, { "ans": [ "Spring loaded to CLOSE position. ", "false" ] }, { "ans": [ "Opened by the EEC using fuel through the FMU. ", "false" ] } ], "ref": "Reference: Page 178/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "LPTACC and HPTACC valves are located(A, B1, B2)", "ansGr": [ { "ans": [ "On the forward RH side of the HPC case. ", "false" ] }, { "ans": [ "On the LH side of the HPT case. ", "false" ] }, { "ans": [ "On the forward LH side of the HPC case. ", "true" ] } ], "ref": "Reference: Page 182,186/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "Which valve in the engine cooling system is NOT operated by servo fuel(A, B1, B2)", "ansGr": [ { "ans": [ "HPTACC valve. ", "false" ] }, { "ans": [ "CCC valve. ", "false" ] }, { "ans": [ "BAI valve. ", "true" ] } ], "ref": "Reference: Page 176/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "The purpose of the Transient Bleed Valve (TBV) is to(A, B1, B2)", "ansGr": [ { "ans": [ "Remove the load on the high pressure compressor (HPC) when the engine accelerates to idle. ", "false" ] }, { "ans": [ "Remove the load on the high pressure compressor (HPC) during rapid deceleration. ", "false" ] }, { "ans": [ "Remove the load on the high pressure compressor (HPC) when the engine accelerates to idle and during rapid deceleration. ", "true" ] } ], "ref": "Reference: Page 206/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "part": "ATA 76: ENGINE CONTROLS", "ch": "Which Test require after install new Engine Fuel Control Switches? (B1)", "ansGr": [ { "ans": [ "Wet-motor procedure ", "true" ] }, { "ans": [ "Dry-motor procedure ", "false" ] }, { "ans": [ "LRU system test ", "false" ] } ], "ref": "Ref: AMM 76-11-02-00A-720A" }, { "ch": "Deployment of T/R (thrust reverser) lever is permitted when: (B1)", "ansGr": [ { "ans": [ "Fwd thrust lever is at idle position ", "true" ] }, { "ans": [ "Fwd thrust lever is not at idle position and at 60 fwd ", "false" ] }, { "ans": [ "Aircraft on ground only ", "false" ] } ], "ref": "Ref: AMM 76-11-00-01A-034B" }, { "ch": "Engine over speed (EOS) protection is automatically supplied by? (B1)", "ansGr": [ { "ans": [ "EEC ", "true" ] }, { "ans": [ "TCM ", "false" ] }, { "ans": [ "TLA Resolver ", "false" ] } ], "ref": "Ref: Student Book - 4B Engine Control, Page 376 of 382" }, { "ch": "Which of the following statements is TRUE: (A, B1, B2)", "ansGr": [ { "ans": [ "You can move the reverse thrust levers at any position of the forward thrust lever. ", "false" ] }, { "ans": [ "The reverse thrust lever is blocked when the forward thrust lever is forward of idle a minimum of 3 degrees. ", "true" ] }, { "ans": [ "The forward thrust lever is not blocked when a reverse thrust lever is moved more than 8.5 degrees. ", "false" ] } ], "ref": "Reference: Page 337/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "Each thrust lever mechanically connects to 2 thrust lever angle (TLA) resolvers, which of the following statements is NOT true: (A, B1, B2)", "ansGr": [ { "ans": [ "The thrust control system can continue normal operation with a failure of one resolver. ", "false" ] }, { "ans": [ "If both resolvers fail electrically, the EEC holds the last valid value for the rest of the flight. ", "false" ] }, { "ans": [ "If both resolvers fail electrically, the EEC holds the last valid value for 2 seconds, then sets the engine thrust to idle. ", "true" ] } ], "ref": "Reference: Page 344/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "P0 is used by the EEC as a backup to the airplane ambient pressure input. This pressure is taken from: (A, B1, B2)", "ansGr": [ { "ans": [ "P0 sensing port in each fan cowl at the 4 o'clock or 8 o'clock position. ", "true" ] }, { "ans": [ "P0 sensing port in each reverser cowl at the 4 o'clock or 8 o'clock position ", "false" ] }, { "ans": [ "P0 sensing port in each fan cowl at the 2 o'clock or 10 o'clock position. ", "false" ] } ], "ref": "Reference: Page 356/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "What is Thrust control malfunction accommodation (TCMA)? (A, B1, B2)", "ansGr": [ { "ans": [ "TCMA is the engine control function that prevents a TCM event from becoming hazardous to the airplane in the air. ", "false" ] }, { "ans": [ "TCMA is the engine control function that prevents a TCM event from becoming hazardous to the airplane while on the ground. ", "true" ] }, { "ans": [ "TCMA is the engine control function that prevents a TCM event from becoming hazardous to the airplane while on the ground and in the air. ", "false" ] } ], "ref": "Reference: Page 372/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "ch": "If a TCM event occurs, what does TCMA do? (A, B1, B2)", "ansGr": [ { "ans": [ "TCMA function commands engine shutdown. ", "true" ] }, { "ans": [ "TCMA function maintains the engine thrust. ", "false" ] }, { "ans": [ "TCMA function gradually reduces engine thrust. ", "false" ] } ], "ref": "Reference: Page 372/382 of 4B Power plant, Engine, Fuel & Control, and Engine Controls – Power plant Book 2 of 3, 787 Training Lab Notebook" }, { "part": "ATA 77: ENGINE INDICATING", "ch": "What statement is True? (B1)", "ansGr": [ { "ans": [ "The N1 and N2 speed sensors interface directly with the EEC for protection and control but also with the main engine data concentrator (MEDC) for a backup N2 signal. ", "true" ] }, { "ans": [ "The EMU uses the speed signals for display and crew alerting function (DCAF) to use. ", "false" ] }, { "ans": [ "These N1 and N2 speeds also go on the common data network (CDN) for engine health monitoring and vibration analysis. ", "false" ] } ], "ref": "Ref: Engine indication – General Description ATA 77, MTM" }, { "ch": "where do the N1 and N2 rotor speeds show on? (B1)", "ansGr": [ { "ans": [ "Engine performance maintenance page, Electronic propulsion control system (EPCS) page, EMU maintenance pages. ", "false" ] }, { "ans": [ "EICAS displays, Engine performance maintenance page, Electronic propulsion control system (EPCS) page. ", "false" ] }, { "ans": [ "EICAS displays, Engine performance maintenance page, Electronic propulsion control system (EPCS) page, EMU maintenance pages. ", "true" ] } ], "ref": "Ref: Engine indication – General Description ATA 77, MTM" }, { "ch": "What statement is incorrect? (B1)", "ansGr": [ { "ans": [ "The N2 speed sensor is a reluctance type sensor that measures the rotational speed of a gear in the accessory gearbox. ", "false" ] }, { "ans": [ "The N2 sensor has 2 sensing coils. ", "true" ] }, { "ans": [ "The N1 sensor has 3 sensing coils around a magnetic core. ", "false" ] } ], "ref": "Ref: Engine indication – Engine Tachometer System ATA 77, MTM" }, { "ch": "N1 speed sensor is located(A, B1, B2)", "ansGr": [ { "ans": [ "On the fan case. ", "false" ] }, { "ans": [ "On the back of the fan hub frame at the 7:00 position on the engine core. ", "true" ] }, { "ans": [ "On the gearbox. ", "false" ] } ], "ref": "Reference: Page 96/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "Which of the following statements is TRUE: (A, B1, B2)", "ansGr": [ { "ans": [ "N2 will show on the EICAS without EEC power applied. ", "true" ] }, { "ans": [ "N1 will show on the EICAS without EEC power applied. ", "false" ] }, { "ans": [ "02 N1 signals go to the EEC and 01 signal goes to the EMU for engine vibration analysis and engine trend monitoring. ", "false" ] } ], "ref": "Reference: Page 96,100/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "N2 speed sensor is located(A, B1, B2)", "ansGr": [ { "ans": [ "On the aft face of the AGB. ", "false" ] }, { "ans": [ "On the forward face of the AGB. ", "true" ] }, { "ans": [ "On the fan hub frame. ", "false" ] } ], "ref": "Reference: Page 100/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "08 T48 EGT probes are numbered 1 thru 8(A, B1, B2)", "ansGr": [ { "ans": [ "From the top in a clockwise direction. ", "true" ] }, { "ans": [ "From the bottom in a clockwise direction. ", "false" ] }, { "ans": [ "From the top in a counter-clockwise direction. ", "false" ] } ], "ref": "Reference: Page 108/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "The EMU gets power from airplane 115v ac when the engine start switch is set to start, the fuel switch is set to run, or the EMU soft maintenance switch is selected and(A, B1, B2)", "ansGr": [ { "ans": [ "Power is not removed until 20 minutes after shutdown. ", "false" ] }, { "ans": [ "Power is not removed until 30 minutes after shutdown. ", "false" ] }, { "ans": [ "Power is not removed until it has analyzed the data (can be up to 10 minutes after shutdown). ", "true" ] } ], "ref": "Reference: Page 120/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "part": "ATA 78: EXHAUST", "ch": "Purpose exhaust System is: (B1)", "ansGr": [ { "ans": [ "The engine exhaust system controls the direction of the engine exhaust gases to provide forward. ", "false" ] }, { "ans": [ "The engine exhaust system controls the direction of the engine exhaust gases to provide forward and reverse thrust. ", "true" ] }, { "ans": [ "The engine exhaust system controls the direction of the engine exhaust gases to provide reverse thrust. ", "false" ] } ], "ref": "Ref: Exhaust - Purpose ATA 77, MTM" }, { "ch": "What statement is True? (B1)", "ansGr": [ { "ans": [ "The center vent tube extension sends the oil sump vent air overboard. ", "true" ] }, { "ans": [ "The center vent tube extension sends the oil, fuel sump vent air overboard. ", "false" ] }, { "ans": [ "The center vent tube extension sends the oil, hydraulic sump vent air overboard. ", "false" ] } ], "ref": "Ref: Exhaust – General Description ATA 77, MTM" }, { "ch": "What statement is True? (B1)", "ansGr": [ { "ans": [ "2 T/R hydraulic actuators (2 per T/R half) operate the translating sleeves. Their movement is synchronized by a flex-shaft that runs over the top between the 2 T/R halves. 12 drag links connect to the translating sleeves. They pull the 12 blocker doors into the correct position inside the T/R. ", "false" ] }, { "ans": [ "4 T/R hydraulic actuators (2 per T/R half) operate the translating sleeves. Their movement is synchronized by a flex-shaft that runs over the top between the 2 T/R halves. 12 drag links connect to the translating sleeves. They pull the 8 blocker doors into the correct position inside the T/R. ", "false" ] }, { "ans": [ "4 T/R hydraulic actuators (2 per T/R half) operate the translating sleeves. Their movement is synchronized by a flex-shaft that runs over the top between the 2 T/R halves. 12 drag links connect to the translating sleeves. They pull the 12 blocker doors into the correct position inside the T/R. ", "true" ] } ], "ref": "Ref: Exhaust – Thrust Reverser ATA 77, MTM" }, { "ch": "What is EICAS indication when the reverse thrust lever is pulled to the up position the? (B1)", "ansGr": [ { "ans": [ "Amber REV shows on EICAS above the N2, towards the end of deployment the amber REV above the N2 indication changes to a green REV. ", "false" ] }, { "ans": [ "Amber REV shows on EICAS above the N1, towards the end of deployment the amber REV above the N1 indication changes to a green REV. ", "true" ] }, { "ans": [ "No thrust reverse Indication on EICAS. ", "false" ] } ], "ref": "Ref: Exhaust – Thrust Reverser Indications ATA 77, MTM" }, { "ch": "Purpose of the reverse thrust levers interlock solenoid: (B1)", "ansGr": [ { "ans": [ "The reverse thrust levers are held in the reverse idle position. You cannot move the thrust reverse levers to the full thrust position until the translating sleeves are 60% deployed. When the EEC senses both reversers have moved to 60% deployed, the interlock solenoid releases. When this happens, you can move the reverse thrust levers full up to increase the reverser thrust. ", "true" ] }, { "ans": [ "The reverse thrust levers are held in the reverse idle position. You cannot move the thrust reverse levers to the full thrust position until the translating sleeves are 60% deployed. When the MEDC senses both reversers have moved to 60% deployed, the interlock solenoid releases. When this happens, you can move the reverse thrust levers full up to increase the reverser thrust. ", "false" ] }, { "ans": [ "The reverse thrust levers are held in the reverse idle position. You cannot move the thrust reverse levers to the full thrust position until the translating sleeves are 30% deployed. When the EEC senses both reversers have moved to 30% deployed, the interlock solenoid releases. When this happens, you can move the reverse thrust levers full up to increase the reverser thrust. ", "false" ] } ], "ref": "Ref: Exhaust – Thrust Reverser Indications ATA 77, MTM" }, { "ch": "To open Thrust reverser cowl, which latch is to be opened first? (A, B1, B2)", "ansGr": [ { "ans": [ "V-blade latch. ", "false" ] }, { "ans": [ "Sleeve latches. ", "false" ] }, { "ans": [ "Bifurcation latch system (BLS) handle. ", "true" ] } ], "ref": "Reference: Page 312/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "How many hold-open rods are there on thrust reverser cowl? (A, B1, B2)", "ansGr": [ { "ans": [ "01. ", "true" ] }, { "ans": [ "02. ", "false" ] }, { "ans": [ "03. ", "false" ] } ], "ref": "Reference: Page 320/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "The purpose of the chevrons on the outer panel of the translating sleeve is(A, B1, B2)", "ansGr": [ { "ans": [ "To increase thrust. ", "false" ] }, { "ans": [ "To decrease engine noise. ", "true" ] }, { "ans": [ "To reduce weight. ", "false" ] } ], "ref": "Reference: Page 328/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "Which of the following is NOT true: (A, B1, B2)", "ansGr": [ { "ans": [ "There 16 composite structure cascade segments for each T/R half. ", "true" ] }, { "ans": [ "Each segment has a number to identify its correct location on the engine. ", "false" ] }, { "ans": [ "The inboard segments have a shape that directs the reverse thrust airflow away from the fuselage. ", "false" ] } ], "ref": "Reference: Page 336/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "There is one track lock mechanism for each T/R assembly, it is in the: (A, B1, B2)", "ansGr": [ { "ans": [ "LH T/R upper hinge beam area of the engine strut. ", "false" ] }, { "ans": [ "RH T/R upper hinge beam area of the engine strut. ", "true" ] }, { "ans": [ "RH T/R torque box next to the V-blade latch. ", "false" ] } ], "ref": "Reference: Page 348/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "The thrust reverser (T/R) T-piece: (A, B1, B2)", "ansGr": [ { "ans": [ "Connects the T/R sync shafts and tubing to make sure the actuators move together. ", "true" ] }, { "ans": [ "Is there so that if an actuator fails, the sync shafts will deploy the T/R halves. ", "false" ] }, { "ans": [ "Let the LH and RH T/R translating sleeves move separately. ", "false" ] } ], "ref": "Reference: Page 352/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "There are: (A, B1, B2)", "ansGr": [ { "ans": [ "03 locking hydraulic actuators for each T/R half. ", "false" ] }, { "ans": [ "01 locking hydraulic actuator and 01 unlocking hydraulic actuator for each T/R half. ", "false" ] }, { "ans": [ "02 locking hydraulic actuators for each T/R half. ", "true" ] } ], "ref": "Reference: Page 356/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "What is NOT true about the T/R translating sleeve feed-back unit: (A, B1, B2)", "ansGr": [ { "ans": [ "There are two feedback units - one on each reverser half. ", "false" ] }, { "ans": [ "They are on the lower locking actuators. ", "true" ] }, { "ans": [ "They are connected to the sync shaft. ", "false" ] } ], "ref": "Reference: Page 360/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "The thrust reverser (T/R) manual drive units let you use a drive tool (1/2-inch socket) for manual operation of the thrust T/R. They are located(A, B1, B2)", "ansGr": [ { "ans": [ "On the upper locking actuators. ", "false" ] }, { "ans": [ "On the lower locking actuators. ", "true" ] }, { "ans": [ "On the T-piece connection. ", "false" ] } ], "ref": "Reference: Page 364/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "During T/R Stow operation: (A, B1, B2)", "ansGr": [ { "ans": [ "A time delay in the IPA software keeps the track lock open for 10 seconds after the stow command. ", "false" ] }, { "ans": [ "A time delay in the EEC keeps the IV open for 20 seconds after stow is commanded. ", "false" ] }, { "ans": [ "After the stow command, a time delay in the IPA software keeps the track lock open for 10 seconds and a time delay in the EEC keeps the IV open for 20 seconds. ", "true" ] } ], "ref": "Reference: Page 384/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "part": "ATA 79: ENGINE OIL", "ch": "The oil tanks are make of ?(LevelB1)", "ansGr": [ { "ans": [ "Stainless steel ", "false" ] }, { "ans": [ "Titanium ", "false" ] }, { "ans": [ "Aluminum ", "true" ] } ], "ref": "Reference:787 Training Lab Notebook .Engine - Oil,Indicating, Air, Ignition/Starting, Exhaust and Balancing - Powerplant Book 3 of 3,Page 14 of 413" }, { "ch": "The engine oil supply temperature sensor gives the temperature of the engine oil from..?(LevelB1)", "ansGr": [ { "ans": [ "Upstream of the Air cooled oil cooler (ACOC) ", "false" ] }, { "ans": [ "downstream of the Main Fuel/Oil Heat Exchanger (MFOHE) ", "false" ] }, { "ans": [ "downstream of the Air cooled oil cooler (ACOC) ", "true" ] } ], "ref": "Reference:787 Training Lab Notebook .Engine - OilIndicating, Air, Ignition/Starting, Exhaust and Balancing - Powerplant Book 3 of 3,Page 62 of 413" }, { "ch": "When is red low oil pressure warning show on EICAS ?(LevelB1)", "ansGr": [ { "ans": [ "oil pressures less than 10 psi at idle N2 and 20 psi at take-off. ", "true" ] }, { "ans": [ "oil pressures less than 12 psi at idle N2 and 20 psi at take-off. ", "false" ] }, { "ans": [ "oil pressures less than 10 psi at idle N2 and 40 psi at take-off. ", "false" ] } ], "ref": "Reference:787 Training Lab Notebook .Engine - Oil,Indicating, Air, Ignition/Starting, Exhaust and Balancing - Powerplant Book 3 of 3,Page 63 of 413" }, { "ch": "How many reed switches are there on The oil level/temperature sensor?(LevelB1)", "ansGr": [ { "ans": [ "42 ", "true" ] }, { "ans": [ "40 ", "false" ] }, { "ans": [ "38 ", "false" ] } ], "ref": "Reference:787 Training Lab Notebook .Engine - Oil,Indicating, Air, Ignition/Starting, Exhaust and Balancing - Powerplant Book 3 of 3,Page 63 of 413" }, { "ch": "The Lube and Scavenge Pump are driven from the accessory gearbox, flow rates and pressures are….?(LevelB1)", "ansGr": [ { "ans": [ "Variable ", "false" ] }, { "ans": [ "Constant ", "false" ] }, { "ans": [ "variable but regulated by the engine operating speed ", "true" ] } ], "ref": "Reference:787 Training Lab Notebook .Engine - Oil,Indicating, Air, Ignition/Starting, Exhaust and Balancing - Powerplant Book 3 of 3,Page 26 of 413" }, { "ch": "What is purpose of The static anti-leak valve…?(LevelB1)", "ansGr": [ { "ans": [ "prevents oil from leaking down from the oil tank into the AGB sump and the lube and scavenge pump when the engine is not running ", "true" ] }, { "ans": [ ".prevents oil from leaking down from the oil tank into the lube and scavenge pump when the engine is running. ", "false" ] }, { "ans": [ "prevents oil from leaking down from the oil tank into the AGB sump and the lube and scavenge pump when the engine is running. ", "false" ] } ], "ref": "Reference:787 Training Lab Notebook .Engine - Oil,Indicating, Air, Ignition/Starting, Exhaust and Balancing - Powerplant Book 3 of 3,Page 26 of 413" }, { "ch": "The oil tank is located on the(A, B1, B2)", "ansGr": [ { "ans": [ "RH side of the fan case. ", "true" ] }, { "ans": [ "LH side of the fan case. ", "false" ] }, { "ans": [ "LH side of the compressor stator. ", "false" ] } ], "ref": "Reference: Page 14/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "The pressure lubrication and scavenge pumps are gerotor type, positive displacement pumps and are(A, B1, B2)", "ansGr": [ { "ans": [ "Located on the RH side of the engine. ", "false" ] }, { "ans": [ "In separate oil pump packs. ", "false" ] }, { "ans": [ "In the same oil pump pack. ", "true" ] } ], "ref": "Reference: Page 26/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "Engine oil is cooled in(A, B1, B2)", "ansGr": [ { "ans": [ "Main Fuel/Oil Heat Exchanger (MFOHE) and Air Cool Oil Cooler (ACOC). ", "true" ] }, { "ans": [ "MFOHE and Fuel Servo Heat Exchanger. ", "false" ] }, { "ans": [ "ACOC and Fuel Servo Heat Exchanger. ", "false" ] } ], "ref": "Reference: Page 38/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "The Air Cool Oil Cooler (ACOC) is a finned-tube design heat exchanger that transfers heat from the oil to the bypass (fan exit) airflow. It is located: (A, B1, B2)", "ansGr": [ { "ans": [ "On the RH side of fan case. ", "false" ] }, { "ans": [ "On the inside of the fan case, aft of the outlet guide vanes (OGV) from the 12:00 to the 3:00 position. ", "true" ] }, { "ans": [ "On the outside of the fan case, aft of the outlet guide vanes (OGV). ", "false" ] } ], "ref": "Reference: Page 38/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "The purpose of Oil Eductor valve is: (A, B1, B2)", "ansGr": [ { "ans": [ "To increase the bearing chamber pressure to prevent possible oil leakage across the labyrinth seal at low engine power settings. ", "false" ] }, { "ans": [ "To act like a venturi to decrease the bearing chamber pressure to prevent possible oil leakage across the carbon seal at low engine power settings. ", "false" ] }, { "ans": [ "To act like a venturi to decrease the bearing chamber pressure to prevent possible oil leakage across the labyrinth seal at low engine power settings. ", "true" ] } ], "ref": "Reference: Page 50/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" }, { "ch": "The oil temperature shown on EICAS gets its temperature from(A, B1, B2)", "ansGr": [ { "ans": [ "Oil Level/Temperature Sensor in the top of the oil tank ", "true" ] }, { "ans": [ "Oil Supply Temperature Sensor on the outside of the fan case. ", "false" ] }, { "ans": [ "Oil Temperature Sensor in the oil pressure oil feed pipe after the coolers. ", "false" ] } ], "ref": "Reference: Page 66,70/413 of 4C Engine - Oil, Indicating, Air, Ignition/Starting, Exhaust and Balancing – Power plant Book 3 of 3, 787 Training Lab Notebook" } ]