[ { "part": "GENx ENGINE CAT A", "title": "ATA 71: POWER PLANT", "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" }, { "title": "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" }, { "title": "ATA 73: ENGINE FUEL AND CONTROL", "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" }, { "title": "ATA 74/80: IGNITION/STARTING", "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" }, { "title": "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": "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" }, { "title": "ATA 76: ENGINE CONTROLS", "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" }, { "title": "ATA 77: ENGINE INDICATING", "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" }, { "title": "ATA 78: EXHAUST", "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" }, { "title": "ATA 79: ENGINE OIL", "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" }, { "part": "RR TRENT 1000 CAT A", "title": "ATA 71 (Powerplant) – B787 Trent 1000", "ch": "What must be done before opening the fan cowl on the Trent 1000 engine?", "ansGr": [ { "ans": [ "Activate the PDOS (Power Door Opening System) from the cockpit ", "false" ] }, { "ans": [ "Disconnect hydraulic supply and install the manual cowl support ", "true" ] }, { "ans": [ "Pull the engine fire switch to disable engine systems ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 71-10 – B787 RR Trent 1000 Training Material\nExplanation:\nBefore opening the fan cowl, the hydraulic supply to the PDOS must be safely isolated, and the manual support strut must be installed to prevent accidental closure." }, { "ch": "What component connects the engine to the airframe?", "ansGr": [ { "ans": [ "Fan duct assembly ", "false" ] }, { "ans": [ "Engine mounts ", "true" ] }, { "ans": [ "Core fairing ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 71-00 – B787 RR Trent 1000 Training Material\nExplanation:\nThe engine is attached to the aircraft via forward and aft engine mounts, which are critical for structural support and load transfer." }, { "ch": "What system is used to open and close the fan cowl doors on the Trent 1000?", "ansGr": [ { "ans": [ "Electrical actuator system ", "false" ] }, { "ans": [ "Manual gearbox crank ", "false" ] }, { "ans": [ "Power Door Opening System (PDOS) ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 71-10 – B787 RR Trent 1000 Training Material\nExplanation:\nThe PDOS is a hydraulically powered system that allows automatic opening and closing of the fan cowl doors. Manual override is possible only when hydraulic power is removed." }, { "ch": "What is the purpose of the core fairing doors?", "ansGr": [ { "ans": [ "Provide access to the fan blades ", "false" ] }, { "ans": [ "Shield high-pressure components and reduce drag ", "true" ] }, { "ans": [ "Allow removal of the IDG ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 71-00 – B787 RR Trent 1000 Training Material\nExplanation:\nThe core fairing doors enclose the engine core and provide aerodynamic efficiency while also protecting internal components from external damage." }, { "ch": "How is access to engine components under the core fairing typically gained during maintenance?", "ansGr": [ { "ans": [ "By opening the engine thrust reversers ", "false" ] }, { "ans": [ "By manually opening the core fairing panels ", "true" ] }, { "ans": [ "By opening the accessory gearbox doors ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 71-00 – B787 RR Trent 1000 Training Material\nExplanation:\nTo inspect or service components located near the core, technicians must open the core fairing doors, which are typically manually operated and secured." }, { "ch": "What is the safe condition for working near the PDOS-controlled fan cowl?", "ansGr": [ { "ans": [ "When engine oil is warm ", "false" ] }, { "ans": [ "When the cowl is half-open ", "false" ] }, { "ans": [ "When hydraulic power is off and the manual support is installed ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 71-10 – B787 RR Trent 1000 Training Material\nExplanation:\nDue to the hydraulic operation of the PDOS, the system can move unexpectedly if pressurized. Maintenance is only safe when the hydraulic power is removed and the manual cowl support strut is in place." }, { "title": "ATA 72 – Engine", "ch": "What is the function of the fan module in the Trent 1000 engine?", "ansGr": [ { "ans": [ "Supplies fuel to the combustor ", "false" ] }, { "ans": [ "Produces most of the engine's thrust ", "true" ] }, { "ans": [ "Controls engine speed ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 72-20 – B787 RR Trent 1000 Training Material\nExplanation:\nIn high-bypass turbofan engines like the Trent 1000, the fan produces up to 80% of total thrust by accelerating bypass air." }, { "ch": "What does the N1 speed indicate?", "ansGr": [ { "ans": [ "Low-pressure spool rotation speed ", "true" ] }, { "ans": [ "Intermediate spool temperature ", "false" ] }, { "ans": [ "Fuel pressure to the engine ", "false" ] } ], "ref": "Ref (CAT A) Answer: A - Ref: ATA 72-00 – B787 RR Trent 1000 Training Material\nExplanation:\nN1 is the rotational speed of the low-pressure spool, which includes the fan and LP turbine; it’s a key performance parameter." }, { "ch": "What component mixes the hot core exhaust with the bypass air?", "ansGr": [ { "ans": [ "Turbine rear duct ", "false" ] }, { "ans": [ "Mixer unit ", "true" ] }, { "ans": [ "Combustor casing ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 72-00 – B787 RR Trent 1000 Training Material\nExplanation:\nThe mixer combines the cooler bypass air with the hotter core exhaust to reduce noise and improve efficiency." }, { "ch": "Where is the high-pressure compressor (HPC) located?", "ansGr": [ { "ans": [ "Between the fan and the combustor ", "true" ] }, { "ans": [ "At the rear of the LP turbine ", "false" ] }, { "ans": [ "Inside the oil tank ", "false" ] } ], "ref": "Ref (CAT A) Answer: A - Ref: ATA 72-30 – B787 RR Trent 1000 Training Material\nExplanation:\nThe HPC is located downstream of the fan and LP compressor and upstream of the combustor, where it compresses air for combustion." }, { "ch": "What is the primary purpose of the combustor?", "ansGr": [ { "ans": [ "Increase bypass air pressure ", "false" ] }, { "ans": [ "Burn fuel to add energy to the airflow ", "true" ] }, { "ans": [ "Cool the turbine blades ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 72-40 – B787 RR Trent 1000 Training Material\nExplanation:\nThe combustor burns the air-fuel mixture to produce high-energy gas that drives the turbines." }, { "ch": "What engine component drives the accessories like fuel pumps and generators?", "ansGr": [ { "ans": [ "Fan hub ", "false" ] }, { "ans": [ "Accessory gearbox ", "true" ] }, { "ans": [ "Oil cooler ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 72-60 – B787 RR Trent 1000 Training Material\nExplanation:\nThe accessory gearbox, driven by the HP spool through a radial and horizontal drive shaft, powers various engine-mounted accessories." }, { "title": "ATA 73 – Engine Fuel and Control", "ch": "What is the function of the EEC (Electronic Engine Controller)?", "ansGr": [ { "ans": [ "Sends thrust commands to the pilot ", "false" ] }, { "ans": [ "Monitors and controls engine operation automatically ", "true" ] }, { "ans": [ "Measures tire pressure ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 73-21 – B787 RR Trent 1000 Training Material\nExplanation:\nThe EEC monitors and manages fuel flow, engine parameters, and protections. It acts as the brain of the engine control system." }, { "ch": "What happens if the EEC loses aircraft power?", "ansGr": [ { "ans": [ "The engine automatically shuts down ", "false" ] }, { "ans": [ "It switches to internal power from the PMA ", "true" ] }, { "ans": [ "The fuel system bypasses the EEC ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 73-21 – B787 RR Trent 1000 Training Material\nExplanation:\nOnce the engine reaches a certain speed, the PMA (permanent magnet alternator) powers the EEC independently of aircraft power." }, { "ch": "What is the purpose of the Fuel Metering Unit (FMU)?", "ansGr": [ { "ans": [ "Mixes air and fuel ", "false" ] }, { "ans": [ "Stores fuel ", "false" ] }, { "ans": [ "Regulates fuel flow to the engine ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 73-20 – B787 RR Trent 1000 Training Material\nExplanation:\nThe FMU precisely controls how much fuel is delivered to the combustor, based on EEC commands and system demands." }, { "ch": "How many igniter plugs are installed in each Trent 1000 engine?", "ansGr": [ { "ans": [ "One ", "false" ] }, { "ans": [ "Two ", "true" ] }, { "ans": [ "Four ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 73-30 / 74-00 – B787 RR Trent 1000 Training Material\nExplanation:\nThere are two igniters per engine used to initiate combustion during engine start or relight." }, { "ch": "During engine start, what controls the fuel flow to the combustor?", "ansGr": [ { "ans": [ "Engine oil pressure ", "false" ] }, { "ans": [ "Manual fuel lever ", "false" ] }, { "ans": [ "EEC and FMU ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 73-21 – B787 RR Trent 1000 Training Material\nExplanation:\nThe EEC sends signals to the FMU to meter and control fuel during engine start, ensuring correct sequencing and safety." }, { "ch": "What indication do you get if the EEC detects a fault in the fuel system?", "ansGr": [ { "ans": [ "Oil temp increases ", "false" ] }, { "ans": [ "An EICAS message or status alert ", "true" ] }, { "ans": [ "Autopilot disconnects ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 73-00 – B787 RR Trent 1000 Training Material\nExplanation:\nFuel system faults are reported to the flight deck via the EICAS system, allowing crew or maintenance to take appropriate action." }, { "title": "ATA 74 – Ignition", "ch": "What is the function of the igniter plugs in the Trent 1000 engine?", "ansGr": [ { "ans": [ "Cool down the combustor ", "false" ] }, { "ans": [ "Provide a spark to start combustion ", "true" ] }, { "ans": [ "Regulate fuel pressure ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 74-00 – B787 RR Trent 1000 Training Material\nExplanation:\nThe igniter plugs deliver high-voltage sparks that ignite the air/fuel mixture in the combustor during engine start or relight." }, { "ch": "Where does the ignition system get electrical power during engine start?", "ansGr": [ { "ans": [ "From the aircraft batteries ", "false" ] }, { "ans": [ "From the APU generator ", "false" ] }, { "ans": [ "From the aircraft electrical system or the PMA ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 74-00 – B787 RR Trent 1000 Training Material\nExplanation:\nIgnition is powered initially by aircraft electrical power, then by the PMA (Permanent Magnet Alternator) once engine speed is sufficient." }, { "ch": "How many ignition exciters are there per Trent 1000 engine?", "ansGr": [ { "ans": [ "One ", "false" ] }, { "ans": [ "Two ", "true" ] }, { "ans": [ "Three ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 74-00 – B787 RR Trent 1000 Training Material\nExplanation:\nThere are two exciters per engine, each connected to one igniter plug, providing the necessary high-voltage output for ignition." }, { "ch": "When are both igniter plugs typically used together?", "ansGr": [ { "ans": [ "During fuel transfer ", "false" ] }, { "ans": [ "During cold weather starts or flameout recovery ", "true" ] }, { "ans": [ "During engine shutdown ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 74-00 – B787 RR Trent 1000 Training Material\nExplanation:\nDual ignition is used during certain engine start conditions (e.g., cold weather) or when extra ignition reliability is required such as in-flight relight." }, { "ch": "What is the purpose of the ignition exciters?", "ansGr": [ { "ans": [ "Monitor engine vibration ", "false" ] }, { "ans": [ "Boost voltage to fire the igniter plugs ", "true" ] }, { "ans": [ "Provide fuel to the igniters ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 74-00 – B787 RR Trent 1000 Training Material\nExplanation:\nExciters convert low-voltage input into high-voltage output to generate sparks at the igniter plugs." }, { "ch": "Where is the status of the ignition system monitored?", "ansGr": [ { "ans": [ "On the engine oil sight glass ", "false" ] }, { "ans": [ "Through cockpit switches ", "false" ] }, { "ans": [ "Via EICAS and maintenance diagnostics ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 74-00 – B787 RR Trent 1000 Training Material\nExplanation:\nThe ignition system’s status is monitored and reported via the EICAS and the onboard maintenance system for fault detection." }, { "title": "ATA 75 – Air System", "ch": "What is the main purpose of the engine bleed air system?", "ansGr": [ { "ans": [ "Cooling the EEC ", "false" ] }, { "ans": [ "Providing compressed air for aircraft systems ", "true" ] }, { "ans": [ "Lubricating turbine blades ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 75-00 – B787 RR Trent 1000 Training Material\nExplanation:\nThe engine’s bleed air system supplies high-pressure air to various aircraft systems, including air conditioning, anti-ice, and pressurization." }, { "ch": "From which stages of the engine is bleed air usually taken?", "ansGr": [ { "ans": [ "Fan and N1 shaft ", "false" ] }, { "ans": [ "LP and HP compressor stages ", "true" ] }, { "ans": [ "Fuel manifolds ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 75-21 – B787 RR Trent 1000 Training Material\nExplanation:\nBleed air is extracted from different compressor stages depending on pressure demand—typically from the intermediate and high-pressure compressors." }, { "ch": "What prevents too much bleed air pressure from entering the aircraft system?", "ansGr": [ { "ans": [ "EEC relay ", "false" ] }, { "ans": [ "Overboard valve ", "false" ] }, { "ans": [ "Pressure regulating and shutoff valve (PRSOV) ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 75-21 – B787 RR Trent 1000 Training Material\nExplanation:\nThe PRSOV controls and limits the bleed air pressure delivered to the aircraft pneumatic system, ensuring safe operation." }, { "ch": "What system uses engine bleed air for thermal anti-ice protection?", "ansGr": [ { "ans": [ "Exhaust system ", "false" ] }, { "ans": [ "Engine nacelle inlet cowl ", "true" ] }, { "ans": [ "Engine oil cooler ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 75-30 – B787 RR Trent 1000 Training Material\nExplanation:\nThe engine inlet cowl is anti-iced using hot bleed air to prevent ice formation during flight." }, { "ch": "When is the engine bleed air valve commanded closed automatically?", "ansGr": [ { "ans": [ "During engine start ", "false" ] }, { "ans": [ "At idle thrust ", "false" ] }, { "ans": [ "When engine fire switch is pulled ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 75-00 – B787 RR Trent 1000 Training Material\nExplanation:\nPulling the engine fire switch automatically shuts the bleed air valve to isolate the engine from the aircraft pneumatic system for safety." }, { "ch": "What controls the position of the bleed air valves?", "ansGr": [ { "ans": [ "EICAS ", "false" ] }, { "ans": [ "AIMS ", "false" ] }, { "ans": [ "EEC via solenoids ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 75-21 – B787 RR Trent 1000 Training Material\nExplanation:\nThe EEC (Electronic Engine Controller) sends electrical signals to control the solenoids that operate the bleed air valves." }, { "title": "ATA 76 (Engine Controls)", "ch": "What does the Thrust Lever Angle (TLA) sensor detect?", "ansGr": [ { "ans": [ "Engine oil temperature ", "false" ] }, { "ans": [ "Pilot thrust command position ", "true" ] }, { "ans": [ "Fan blade angle ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 76-11 – B787 RR Trent 1000 Training Material\nExplanation:\nThe TLA sensor monitors the position of the thrust lever and sends this data to the EEC to control engine thrust accordingly." }, { "ch": "What system uses the TLA sensor inputs?", "ansGr": [ { "ans": [ "EICAS only ", "false" ] }, { "ans": [ "EEC (Electronic Engine Controller) ", "true" ] }, { "ans": [ "APU fuel system ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 76-11 – B787 RR Trent 1000 Training Material\nExplanation:\nThe EEC uses thrust lever inputs to determine required engine output and fuel scheduling." }, { "ch": "Where are the thrust levers located?", "ansGr": [ { "ans": [ "Under the engine pylon ", "false" ] }, { "ans": [ "On the center pedestal in the flight deck ", "true" ] }, { "ans": [ "Inside the accessory gearbox ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 76-00 – B787 RR Trent 1000 Training Material\nExplanation:\nPilots control the engines through the thrust levers mounted on the flight deck center pedestal." }, { "ch": "What happens if both thrust levers are moved to idle?", "ansGr": [ { "ans": [ "The engines automatically shut down ", "false" ] }, { "ans": [ "Reverse thrust activates ", "false" ] }, { "ans": [ "EEC reduces fuel flow to idle power ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 76-11 – B787 RR Trent 1000 Training Material\nExplanation:\nWhen the thrust levers are set to idle, the EEC reduces the engine power by adjusting fuel flow to minimum operating level." }, { "ch": "If the EEC fails, what happens to engine control?", "ansGr": [ { "ans": [ "Engine stops immediately ", "false" ] }, { "ans": [ "Manual control of thrust is possible via backup ", "true" ] }, { "ans": [ "EEC reboots from the battery ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 76-00 – B787 RR Trent 1000 Training Material\nExplanation:\nThe EEC has an alternate control mode that allows limited engine operation if the primary control system fails." }, { "ch": "How does the pilot control engine thrust?", "ansGr": [ { "ans": [ "Through hydraulic servos ", "false" ] }, { "ans": [ "With voice commands ", "false" ] }, { "ans": [ "By moving the thrust levers ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 76-11 – B787 RR Trent 1000 Training Material\nExplanation:\nThe pilot controls engine thrust by physically adjusting the thrust levers, which send electrical signals to the EEC." }, { "title": "ATA 77 (Engine Indicating)", "ch": "Where are engine indications shown to the flight crew?", "ansGr": [ { "ans": [ "Lower cargo panel ", "false" ] }, { "ans": [ "EICAS on the flight deck displays ", "true" ] }, { "ans": [ "Maintenance access panel ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 77-00 – B787 RR Trent 1000 Training Material\nExplanation:\nAll key engine parameters (N1, N2, oil pressure, temperature, etc.) are displayed on the EICAS screen in the flight deck." }, { "ch": "What does the N1 indication represent?", "ansGr": [ { "ans": [ "Engine fuel pressure ", "false" ] }, { "ans": [ "Low-pressure spool speed ", "true" ] }, { "ans": [ "Exhaust gas temperature ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 77-00 – B787 RR Trent 1000 Training Material\nExplanation:\nN1 shows the rotational speed of the fan and low-pressure compressor/turbine system." }, { "ch": "What EICAS message appears during an engine fire?", "ansGr": [ { "ans": [ "REV UNLOCK ", "false" ] }, { "ans": [ "ENG FIRE ", "true" ] }, { "ans": [ "HYD PRESS LOW ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 77-00 – B787 RR Trent 1000 Training Material\nExplanation:\nENG FIRE is a red-level warning message that appears on EICAS to alert the crew to a detected engine fire." }, { "ch": "Which system sends data to the EICAS for engine indication?", "ansGr": [ { "ans": [ "EEC ", "true" ] }, { "ans": [ "Ram air turbine ", "false" ] }, { "ans": [ "Ground power unit ", "false" ] } ], "ref": "Ref (CAT A) Answer: A - Ref: ATA 77-00 – B787 RR Trent 1000 Training Material\nExplanation:\nThe EEC monitors engine sensors and sends data to the EICAS for cockpit display." }, { "ch": "What does an amber box around an indication usually mean?", "ansGr": [ { "ans": [ "Value is rising normally ", "false" ] }, { "ans": [ "Maintenance reminder only ", "false" ] }, { "ans": [ "Value is out of normal range ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 77-00 – B787 RR Trent 1000 Training Material\nExplanation:\nAn amber box around an EICAS value indicates an abnormal but not emergency condition needing attention." }, { "ch": "What is the purpose of engine indication systems?", "ansGr": [ { "ans": [ "Control the engine ", "false" ] }, { "ans": [ "Store oil ", "false" ] }, { "ans": [ "Provide visual status of engine performance ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 77-00 – B787 RR Trent 1000 Training Material\nExplanation:\nThese systems allow flight crew and maintenance to monitor engine condition and performance in real time." }, { "title": "ATA 78 (Exhaust / Thrust Reverser)", "ch": "What is the purpose of the thrust reverser?", "ansGr": [ { "ans": [ "Increase takeoff thrust ", "false" ] }, { "ans": [ "Reduce landing roll distance ", "true" ] }, { "ans": [ "Start the APU ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 78-30 – B787 RR Trent 1000 Training Material\nExplanation:\nThe thrust reverser redirects engine thrust forward to help slow the aircraft during landing." }, { "ch": "What system powers the thrust reverser on the Trent 1000?", "ansGr": [ { "ans": [ "Pneumatic air ", "false" ] }, { "ans": [ "Electric motors ", "false" ] }, { "ans": [ "Hydraulic actuation ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 78-30 – B787 RR Trent 1000 Training Material\nExplanation:\nThe thrust reverser uses hydraulic actuators to deploy and stow the blocker doors." }, { "ch": "What does a red \"REV\" indication on EICAS mean?", "ansGr": [ { "ans": [ "Reverser is stowed normally ", "false" ] }, { "ans": [ "T/R deployed in air ", "true" ] }, { "ans": [ "Fire detected ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 78-30 – B787 RR Trent 1000 Training Material\nExplanation:\nA red “REV” indicates the thrust reverser has deployed in an unsafe or unintended condition, such as in flight." }, { "ch": "What must be checked before dispatch regarding thrust reversers?", "ansGr": [ { "ans": [ "Hydraulic accumulator level ", "false" ] }, { "ans": [ "Reverser lockout pins installed ", "false" ] }, { "ans": [ "Reverser system faults on EICAS ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 78-30 – B787 RR Trent 1000 Training Material\nExplanation:\nAny system faults or status messages related to the T/R must be reviewed and cleared prior to dispatch." }, { "ch": "What prevents T/R deployment during flight?", "ansGr": [ { "ans": [ "Thrust lever stop ", "false" ] }, { "ans": [ "Electrical and mechanical interlocks ", "true" ] }, { "ans": [ "Cabin pressure sensors ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 78-30 – B787 RR Trent 1000 Training Material\nExplanation:\nMultiple interlocks, both electrical and mechanical, prevent T/R deployment unless the aircraft is on the ground." }, { "ch": "What is the function of the translating sleeves on the thrust reverser?", "ansGr": [ { "ans": [ "Reduce fuel flow ", "false" ] }, { "ans": [ "Direct air forward during deployment ", "true" ] }, { "ans": [ "Support engine mounts ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 78-30 – B787 RR Trent 1000 Training Material\nExplanation:\nThe sleeves slide back to expose blocker doors, redirecting bypass air forward to create reverse thrust." }, { "title": "ATA 79 (Oil)", "ch": "Where is engine oil quantity displayed?", "ansGr": [ { "ans": [ "On the engine core fairing ", "false" ] }, { "ans": [ "On EICAS ", "true" ] }, { "ans": [ "On the maintenance panel under the wing ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 79-00 – B787 RR Trent 1000 Training Material\nExplanation:\nOil quantity and pressure are monitored via sensors and displayed on EICAS." }, { "ch": "What is the purpose of the scavenge pump in the oil system?", "ansGr": [ { "ans": [ "Increase oil pressure ", "false" ] }, { "ans": [ "Return oil from bearings to tank ", "true" ] }, { "ans": [ "Monitor oil temperature ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 79-20 – B787 RR Trent 1000 Training Material\nExplanation:\nScavenge pumps return used oil from the bearing chambers back to the oil tank for reuse and cooling." }, { "ch": "When should oil servicing typically be performed?", "ansGr": [ { "ans": [ "When engine is running ", "false" ] }, { "ans": [ "During landing roll ", "false" ] }, { "ans": [ "After shutdown and oil has settled ", "true" ] } ], "ref": "Ref (CAT A) Answer: C - Ref: ATA 79-00 – B787 RR Trent 1000 Training Material\nExplanation:\nOil should be checked and serviced after engine shutdown and a suitable cooling period to ensure accurate readings." }, { "ch": "What could low oil pressure indicate?", "ansGr": [ { "ans": [ "Overboost ", "false" ] }, { "ans": [ "System leak or pump failure ", "true" ] }, { "ans": [ "Fuel imbalance ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 79-10 – B787 RR Trent 1000 Training Material\nExplanation:\nLow oil pressure may indicate a leak, failed pump, or other lubrication issue needing investigation." }, { "ch": "What cools the engine oil?", "ansGr": [ { "ans": [ "Fuel-oil heat exchanger ", "true" ] }, { "ans": [ "Fan air directly ", "false" ] }, { "ans": [ "IDG cooling fan ", "false" ] } ], "ref": "Ref (CAT A) Answer: A - Ref: ATA 79-20 – B787 RR Trent 1000 Training Material\nExplanation:\nThe fuel-oil heat exchanger transfers heat from oil to fuel, cooling the oil before it returns to the engine." }, { "ch": "What happens if oil pressure drops below a safe limit?", "ansGr": [ { "ans": [ "EICAS warning is triggered ", "true" ] }, { "ans": [ "Fan speed increases ", "false" ] }, { "ans": [ "Ignition system resets ", "false" ] } ], "ref": "Ref (CAT A) Answer: A - Ref: ATA 79-00 – B787 RR Trent 1000 Training Material\nExplanation:\nAn EICAS warning alerts the crew of unsafe oil pressure, prompting potential corrective action." }, { "title": "ATA 80 (Starting)", "ch": "What system starts the Trent 1000 engine?", "ansGr": [ { "ans": [ "Electric starter motor ", "false" ] }, { "ans": [ "Air turbine starter ", "true" ] }, { "ans": [ "Hydraulic piston starter ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 80-11 – B787 RR Trent 1000 Training Material\nExplanation:\nAn air turbine starter uses compressed air (from APU or ground) to spin the engine until self-sustaining speed is reached." }, { "ch": "What provides starter air during normal operations?", "ansGr": [ { "ans": [ "APU or ground air source ", "true" ] }, { "ans": [ "IDG ", "false" ] }, { "ans": [ "Oil scavenge line ", "false" ] } ], "ref": "Ref (CAT A) Answer: A - Ref: ATA 80-11 – B787 RR Trent 1000 Training Material\nExplanation:\nStarter air is supplied by the APU during normal operation or by a ground cart during maintenance." }, { "ch": "What happens when the engine reaches self-sustaining speed during start?", "ansGr": [ { "ans": [ "Starter keeps spinning ", "false" ] }, { "ans": [ "Starter valve closes ", "true" ] }, { "ans": [ "EICAS turns off ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 80-11 – B787 RR Trent 1000 Training Material\nExplanation:\nOnce the engine reaches sufficient N2/N3 speed, the starter valve closes automatically." }, { "ch": "How is starter valve operation controlled?", "ansGr": [ { "ans": [ "Manually by switch ", "false" ] }, { "ans": [ "Automatically by the EEC ", "true" ] }, { "ans": [ "By hydraulic pump ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 80-11 – B787 RR Trent 1000 Training Material\nExplanation:\nThe EEC commands the starter valve open or closed during engine start sequence." }, { "ch": "What engine spool is driven by the starter during start?", "ansGr": [ { "ans": [ "N1 ", "false" ] }, { "ans": [ "N2/N3 ", "true" ] }, { "ans": [ "Fan blades only ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 80-11 – B787 RR Trent 1000 Training Material\nExplanation:\nThe air turbine starter drives the intermediate and high-pressure spools (N2/N3) to begin engine rotation." }, { "ch": "What indicates a successful engine start?", "ansGr": [ { "ans": [ "Cabin lights dim ", "false" ] }, { "ans": [ "EICAS shows stable N1, EGT, and fuel flow ", "true" ] }, { "ans": [ "EEC power fails ", "false" ] } ], "ref": "Ref (CAT A) Answer: B - Ref: ATA 80-11 – B787 RR Trent 1000 Training Material\nExplanation:\nA successful start is confirmed when the engine reaches stable parameters with N1 rotation, normal EGT, and fuel flow." } ]