[
    {
        "ch": "How is the Powered Door Opening System (PDOS) actuated?",
        "ansGr": [
            {
                "ans": [
                    "Pneumatically",
                    "false"
                ]
            },
            {
                "ans": [
                    "Hydraulically",
                    "true"
                ]
            },
            {
                "ans": [
                    "Electrically",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "How many actuators operate the fan cowl PDOS on one engine?",
        "ansGr": [
            {
                "ans": [
                    "Two",
                    "false"
                ]
            },
            {
                "ans": [
                    "Four",
                    "true"
                ]
            },
            {
                "ans": [
                    "Six",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What should be checked if a fan blade tip is damaged?",
        "ansGr": [
            {
                "ans": [
                    "Turbine clearance",
                    "false"
                ]
            },
            {
                "ans": [
                    "Entire fan blade set for imbalance",
                    "true"
                ]
            },
            {
                "ans": [
                    "IDG status",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "Which shaft drives the main engine gearbox in the Trent 800?",
        "ansGr": [
            {
                "ans": [
                    "N1",
                    "false"
                ]
            },
            {
                "ans": [
                    "N2",
                    "false"
                ]
            },
            {
                "ans": [
                    "N3",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What is the function of the HP Shutoff Valve (HPSOV) in the fuel system?",
        "ansGr": [
            {
                "ans": [
                    "To isolate the engine oil system",
                    "false"
                ]
            },
            {
                "ans": [
                    "To stop fuel flow during engine shutdown",
                    "true"
                ]
            },
            {
                "ans": [
                    "To increase fuel pressure at high altitude",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "Which component physically controls the metering valve in the Trent 800 fuel system?",
        "ansGr": [
            {
                "ans": [
                    "EEC directly",
                    "false"
                ]
            },
            {
                "ans": [
                    "Hydraulic actuator",
                    "false"
                ]
            },
            {
                "ans": [
                    "Fuel Metering Unit (FMU)",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "How many igniter plugs are in the Trent 800 engine?",
        "ansGr": [
            {
                "ans": [
                    "One",
                    "false"
                ]
            },
            {
                "ans": [
                    "Two",
                    "true"
                ]
            },
            {
                "ans": [
                    "Four",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What powers the igniters during engine start?",
        "ansGr": [
            {
                "ans": [
                    "EEC-controlled exciter unit",
                    "true"
                ]
            },
            {
                "ans": [
                    "Ground power unit",
                    "false"
                ]
            },
            {
                "ans": [
                    "Fuel igniter pump",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the effect of a stuck PRSOV (Pressure Regulating Shut-Off Valve) in the open position?",
        "ansGr": [
            {
                "ans": [
                    "No airflow",
                    "false"
                ]
            },
            {
                "ans": [
                    "Overpressure in bleed air system",
                    "true"
                ]
            },
            {
                "ans": [
                    "Oil leak",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "In alternate mode, what engine control parameter is used instead of EPR?",
        "ansGr": [
            {
                "ans": [
                    "N1",
                    "true"
                ]
            },
            {
                "ans": [
                    "N2",
                    "false"
                ]
            },
            {
                "ans": [
                    "EGT",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What does the Electronic Engine Control (EEC) receive input from during normal operation?",
        "ansGr": [
            {
                "ans": [
                    "AIMS only",
                    "false"
                ]
            },
            {
                "ans": [
                    "Thrust lever resolver and engine sensors",
                    "true"
                ]
            },
            {
                "ans": [
                    "Engine shutdown switch",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What does the EEC monitor to avoid fan overspeed?",
        "ansGr": [
            {
                "ans": [
                    "EGT",
                    "false"
                ]
            },
            {
                "ans": [
                    "N1 RPM",
                    "true"
                ]
            },
            {
                "ans": [
                    "Fuel pressure",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What does a spike in engine vibration without N1 fluctuation usually indicate?",
        "ansGr": [
            {
                "ans": [
                    "Fan blade issue",
                    "true"
                ]
            },
            {
                "ans": [
                    "Turbine seal wear",
                    "false"
                ]
            },
            {
                "ans": [
                    "N3 sensor failure",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What happens if N3 speed data is lost?",
        "ansGr": [
            {
                "ans": [
                    "EEC shuts down the engine",
                    "false"
                ]
            },
            {
                "ans": [
                    "EGT display is disabled",
                    "false"
                ]
            },
            {
                "ans": [
                    "Engine operates in degraded mode",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What causes a red REV indication on the EICAS during thrust reverser operation?",
        "ansGr": [
            {
                "ans": [
                    "Full stowage",
                    "false"
                ]
            },
            {
                "ans": [
                    "Uncommanded deployment",
                    "true"
                ]
            },
            {
                "ans": [
                    "Hydraulic leak",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What does an amber REV indication on EICAS mean?",
        "ansGr": [
            {
                "ans": [
                    "T/R deployed fully",
                    "false"
                ]
            },
            {
                "ans": [
                    "T/R in transit or unlocked",
                    "true"
                ]
            },
            {
                "ans": [
                    "System failed",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "How is oil temperature controlled in the Trent 800?",
        "ansGr": [
            {
                "ans": [
                    "By oil-to-fuel heat exchanger",
                    "true"
                ]
            },
            {
                "ans": [
                    "By a dedicated cooler fan",
                    "false"
                ]
            },
            {
                "ans": [
                    "By engine EEC",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is a common cause of low oil pressure warning on engine start?",
        "ansGr": [
            {
                "ans": [
                    "Oil quantity too high",
                    "false"
                ]
            },
            {
                "ans": [
                    "Oil scavenge pump failure",
                    "false"
                ]
            },
            {
                "ans": [
                    "Cold oil temperature",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "Where does the oil scavenge pump return oil to?",
        "ansGr": [
            {
                "ans": [
                    "Engine core",
                    "false"
                ]
            },
            {
                "ans": [
                    "APU",
                    "false"
                ]
            },
            {
                "ans": [
                    "Oil tank",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "Which component provides starter torque during engine start?",
        "ansGr": [
            {
                "ans": [
                    "Fuel pump",
                    "false"
                ]
            },
            {
                "ans": [
                    "Air turbine starter",
                    "true"
                ]
            },
            {
                "ans": [
                    "Hydraulic motor",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What should be done if a fan cowl actuator shows hydraulic leakage?",
        "ansGr": [
            {
                "ans": [
                    "Replace the actuator",
                    "true"
                ]
            },
            {
                "ans": [
                    "Apply sealant",
                    "false"
                ]
            },
            {
                "ans": [
                    "Reset the EEC",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What prevents PDOS operation when the engine is running?",
        "ansGr": [
            {
                "ans": [
                    "Fan cowl switch",
                    "false"
                ]
            },
            {
                "ans": [
                    "Proximity switch in pylon",
                    "false"
                ]
            },
            {
                "ans": [
                    "EEC inhibit signal",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What should be checked after bird ingestion into the fan section?",
        "ansGr": [
            {
                "ans": [
                    "Igniter function",
                    "false"
                ]
            },
            {
                "ans": [
                    "Fan blade damage and imbalance",
                    "true"
                ]
            },
            {
                "ans": [
                    "Oil temperature",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the primary indication of turbine blade cracking?",
        "ansGr": [
            {
                "ans": [
                    "High N1",
                    "false"
                ]
            },
            {
                "ans": [
                    "EGT rise",
                    "true"
                ]
            },
            {
                "ans": [
                    "Low oil pressure",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What does the LP fuel pump supply to the FMU?",
        "ansGr": [
            {
                "ans": [
                    "Filtered, high-pressure fuel",
                    "false"
                ]
            },
            {
                "ans": [
                    "Pressurized, low-pressure fuel",
                    "true"
                ]
            },
            {
                "ans": [
                    "Unfiltered fuel",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the effect of a failed EEC power supply?",
        "ansGr": [
            {
                "ans": [
                    "Engine runs at idle",
                    "false"
                ]
            },
            {
                "ans": [
                    "EEC reverts to alternate mode",
                    "false"
                ]
            },
            {
                "ans": [
                    "Engine shuts down",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What does the exciter unit do?",
        "ansGr": [
            {
                "ans": [
                    "Controls fuel flow",
                    "false"
                ]
            },
            {
                "ans": [
                    "Generates high voltage for igniters",
                    "true"
                ]
            },
            {
                "ans": [
                    "Monitors engine temperature",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "How is the ignition system tested on ground?",
        "ansGr": [
            {
                "ans": [
                    "Ignition switch test",
                    "false"
                ]
            },
            {
                "ans": [
                    "Manual start",
                    "false"
                ]
            },
            {
                "ans": [
                    "EEC built-in test",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What controls the bleed air PRSOV?",
        "ansGr": [
            {
                "ans": [
                    "Manual switch",
                    "false"
                ]
            },
            {
                "ans": [
                    "Air temperature sensor",
                    "false"
                ]
            },
            {
                "ans": [
                    "EEC",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What happens if the bleed air precooler fails?",
        "ansGr": [
            {
                "ans": [
                    "The valve closes",
                    "true"
                ]
            },
            {
                "ans": [
                    "Airflow increases",
                    "false"
                ]
            },
            {
                "ans": [
                    "Engine shutdown",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What signal does the thrust lever resolver send to the EEC?",
        "ansGr": [
            {
                "ans": [
                    "Engine start command",
                    "false"
                ]
            },
            {
                "ans": [
                    "Desired thrust setting",
                    "true"
                ]
            },
            {
                "ans": [
                    "Ignition voltage",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What happens if the thrust lever signal is lost?",
        "ansGr": [
            {
                "ans": [
                    "Reverts to idle",
                    "true"
                ]
            },
            {
                "ans": [
                    "Engine shuts down",
                    "false"
                ]
            },
            {
                "ans": [
                    "N2 locks at 60%",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What causes a blank EGT reading on EICAS?",
        "ansGr": [
            {
                "ans": [
                    "EGT sensor failure",
                    "true"
                ]
            },
            {
                "ans": [
                    "Fuel filter clog",
                    "false"
                ]
            },
            {
                "ans": [
                    "T/R deploy",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "Which system interprets and routes engine indication data?",
        "ansGr": [
            {
                "ans": [
                    "EEC",
                    "false"
                ]
            },
            {
                "ans": [
                    "EDIU",
                    "true"
                ]
            },
            {
                "ans": [
                    "FMU",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What provides locking of thrust reverser sleeves in flight?",
        "ansGr": [
            {
                "ans": [
                    "EICAS logic",
                    "false"
                ]
            },
            {
                "ans": [
                    "Mechanical lock links and pressure",
                    "true"
                ]
            },
            {
                "ans": [
                    "EEC override",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What happens if a T/R unlocks in flight?",
        "ansGr": [
            {
                "ans": [
                    "Reverser stows",
                    "false"
                ]
            },
            {
                "ans": [
                    "EICAS alert and auto-retraction",
                    "true"
                ]
            },
            {
                "ans": [
                    "Engine shutdown",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the primary cause of oil foaming?",
        "ansGr": [
            {
                "ans": [
                    "High engine RPM",
                    "false"
                ]
            },
            {
                "ans": [
                    "Air leakage into the oil system",
                    "true"
                ]
            },
            {
                "ans": [
                    "Low oil quantity",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What ensures the oil is clean before going to engine bearings?",
        "ansGr": [
            {
                "ans": [
                    "Oil cooler",
                    "false"
                ]
            },
            {
                "ans": [
                    "Pressure pump",
                    "false"
                ]
            },
            {
                "ans": [
                    "Oil filter",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What does the EEC monitor during engine start?",
        "ansGr": [
            {
                "ans": [
                    "APU load",
                    "false"
                ]
            },
            {
                "ans": [
                    "N2 and EGT",
                    "true"
                ]
            },
            {
                "ans": [
                    "Ram air flow",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What closes the start valve after engine reaches idle?",
        "ansGr": [
            {
                "ans": [
                    "EEC",
                    "true"
                ]
            },
            {
                "ans": [
                    "FMU",
                    "false"
                ]
            },
            {
                "ans": [
                    "Manual switch",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What prevents engine cowls from opening in flight?",
        "ansGr": [
            {
                "ans": [
                    "PDOS logic",
                    "false"
                ]
            },
            {
                "ans": [
                    "EEC airspeed input",
                    "false"
                ]
            },
            {
                "ans": [
                    "Mechanical lock and proximity sensors",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What is the normal hydraulic source for PDOS operation?",
        "ansGr": [
            {
                "ans": [
                    "Center hydraulic system",
                    "false"
                ]
            },
            {
                "ans": [
                    "Right hydraulic system",
                    "true"
                ]
            },
            {
                "ans": [
                    "Left hydraulic system",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the effect of worn turbine blade tips?",
        "ansGr": [
            {
                "ans": [
                    "Increased oil pressure",
                    "false"
                ]
            },
            {
                "ans": [
                    "Decreased N3 performance",
                    "false"
                ]
            },
            {
                "ans": [
                    "Higher EGT for same thrust",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What would a sudden N2 increase with no N1 change indicate?",
        "ansGr": [
            {
                "ans": [
                    "Bypass valve failure",
                    "false"
                ]
            },
            {
                "ans": [
                    "HP turbine issue",
                    "true"
                ]
            },
            {
                "ans": [
                    "Fan vibration",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What will the EEC do in the event of FMU metering failure?",
        "ansGr": [
            {
                "ans": [
                    "Switch to manual mode",
                    "false"
                ]
            },
            {
                "ans": [
                    "Maintain last commanded flow",
                    "true"
                ]
            },
            {
                "ans": [
                    "Shut off fuel",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What happens if the LP fuel filter becomes blocked?",
        "ansGr": [
            {
                "ans": [
                    "Boost pump pressure drops",
                    "false"
                ]
            },
            {
                "ans": [
                    "Engine fuel flow stops",
                    "false"
                ]
            },
            {
                "ans": [
                    "EICAS filter bypass message",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What is the purpose of two igniter plugs?",
        "ansGr": [
            {
                "ans": [
                    "Emergency backup",
                    "false"
                ]
            },
            {
                "ans": [
                    "Redundancy for reliable ignition",
                    "true"
                ]
            },
            {
                "ans": [
                    "Anti-icing",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "When is ignition continuously active during flight?",
        "ansGr": [
            {
                "ans": [
                    "Takeoff",
                    "false"
                ]
            },
            {
                "ans": [
                    "Climb",
                    "false"
                ]
            },
            {
                "ans": [
                    "Icing and turbulence",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What controls the high-stage valve in the bleed system?",
        "ansGr": [
            {
                "ans": [
                    "EICAS",
                    "false"
                ]
            },
            {
                "ans": [
                    "EEC",
                    "true"
                ]
            },
            {
                "ans": [
                    "AIMS",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is a sign of precooler failure?",
        "ansGr": [
            {
                "ans": [
                    "Low bleed air pressure",
                    "false"
                ]
            },
            {
                "ans": [
                    "Overheat message",
                    "true"
                ]
            },
            {
                "ans": [
                    "High N1 RPM",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What provides thrust command to the EEC?",
        "ansGr": [
            {
                "ans": [
                    "AIMS",
                    "false"
                ]
            },
            {
                "ans": [
                    "Thrust lever resolver",
                    "true"
                ]
            },
            {
                "ans": [
                    "PRSOV",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What occurs during an EEC alternate mode transition?",
        "ansGr": [
            {
                "ans": [
                    "EICAS displays “ALTN MODE”",
                    "true"
                ]
            },
            {
                "ans": [
                    "Engine shuts down",
                    "false"
                ]
            },
            {
                "ans": [
                    "Ignition activates",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "Which component transmits N3 data to the EICAS system?",
        "ansGr": [
            {
                "ans": [
                    "EEC",
                    "false"
                ]
            },
            {
                "ans": [
                    "EDIU",
                    "true"
                ]
            },
            {
                "ans": [
                    "N3 sensor",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What could cause an inaccurate N1 reading?",
        "ansGr": [
            {
                "ans": [
                    "Damaged fan blade",
                    "false"
                ]
            },
            {
                "ans": [
                    "Sensor fault",
                    "true"
                ]
            },
            {
                "ans": [
                    "Oil system leak",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What holds the T/R sleeves in stowed position?",
        "ansGr": [
            {
                "ans": [
                    "Springs",
                    "false"
                ]
            },
            {
                "ans": [
                    "Mechanical locks and hydraulic pressure",
                    "true"
                ]
            },
            {
                "ans": [
                    "Solenoid switch",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What happens if a T/R actuator fails during deployment?",
        "ansGr": [
            {
                "ans": [
                    "Thrust increases",
                    "false"
                ]
            },
            {
                "ans": [
                    "Asymmetrical deployment prevented",
                    "true"
                ]
            },
            {
                "ans": [
                    "Ignition starts",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What prevents oil starvation when the aircraft pitches nose-up?",
        "ansGr": [
            {
                "ans": [
                    "Oil scavenge pump",
                    "false"
                ]
            },
            {
                "ans": [
                    "Surge tank",
                    "false"
                ]
            },
            {
                "ans": [
                    "Inlet baffles in oil tank",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What is the result of a clogged oil filter?",
        "ansGr": [
            {
                "ans": [
                    "Bypass valve opens",
                    "true"
                ]
            },
            {
                "ans": [
                    "EEC shuts down the engine",
                    "false"
                ]
            },
            {
                "ans": [
                    "Oil cooler closes",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What controls the starter valve operation?",
        "ansGr": [
            {
                "ans": [
                    "Manual switch",
                    "false"
                ]
            },
            {
                "ans": [
                    "EEC",
                    "true"
                ]
            },
            {
                "ans": [
                    "FMU",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What does a stuck starter valve cause?",
        "ansGr": [
            {
                "ans": [
                    "No ignition",
                    "false"
                ]
            },
            {
                "ans": [
                    "Engine shutdown",
                    "false"
                ]
            },
            {
                "ans": [
                    "High EGT or hung start",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What is used to manually open the fan cowls if PDOS fails?",
        "ansGr": [
            {
                "ans": [
                    "Ground service panel",
                    "false"
                ]
            },
            {
                "ans": [
                    "Manual release tool",
                    "true"
                ]
            },
            {
                "ans": [
                    "Lockout pin",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What system status should be confirmed before PDOS activation?",
        "ansGr": [
            {
                "ans": [
                    "Flight deck doors locked",
                    "false"
                ]
            },
            {
                "ans": [
                    "Engine master switch OFF",
                    "true"
                ]
            },
            {
                "ans": [
                    "Hydraulic system pressurized",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What would abnormal exhaust gas coloration typically indicate?",
        "ansGr": [
            {
                "ans": [
                    "Bleed air leak",
                    "false"
                ]
            },
            {
                "ans": [
                    "Incomplete combustion",
                    "true"
                ]
            },
            {
                "ans": [
                    "Fan imbalance",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "If N3 rises abnormally with no N1 change, what could be the cause?",
        "ansGr": [
            {
                "ans": [
                    "Accessory gearbox damage",
                    "false"
                ]
            },
            {
                "ans": [
                    "LP turbine issue",
                    "false"
                ]
            },
            {
                "ans": [
                    "HP turbine or N3 clutch issue",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What is the function of the fuel flow transmitter?",
        "ansGr": [
            {
                "ans": [
                    "Controls pressure to FMU",
                    "false"
                ]
            },
            {
                "ans": [
                    "Sends flow data to EICAS",
                    "true"
                ]
            },
            {
                "ans": [
                    "Regulates return fuel",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What happens if the FMU filter becomes blocked?",
        "ansGr": [
            {
                "ans": [
                    "Fuel bypasses through internal valve",
                    "true"
                ]
            },
            {
                "ans": [
                    "Engine shuts down",
                    "false"
                ]
            },
            {
                "ans": [
                    "Pressure drops and EGT rises",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the resistance check used for in the ignition circuit?",
        "ansGr": [
            {
                "ans": [
                    "Check fuel valves",
                    "false"
                ]
            },
            {
                "ans": [
                    "Confirm sensor cooling",
                    "false"
                ]
            },
            {
                "ans": [
                    "Verify igniter integrity",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What unit energizes the ignition system during start?",
        "ansGr": [
            {
                "ans": [
                    "Start control unit",
                    "false"
                ]
            },
            {
                "ans": [
                    "EEC",
                    "true"
                ]
            },
            {
                "ans": [
                    "FMU",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What causes the bleed air system to go into overheat protection mode?",
        "ansGr": [
            {
                "ans": [
                    "High oil pressure",
                    "false"
                ]
            },
            {
                "ans": [
                    "High duct temperature",
                    "true"
                ]
            },
            {
                "ans": [
                    "Low N2 RPM",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What happens if both PRSOVs fail closed?",
        "ansGr": [
            {
                "ans": [
                    "Backup valve opens",
                    "false"
                ]
            },
            {
                "ans": [
                    "Engine bleed air is unavailable",
                    "true"
                ]
            },
            {
                "ans": [
                    "Manual override enables airflow",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "Which mode provides less responsive thrust control?",
        "ansGr": [
            {
                "ans": [
                    "Normal mode",
                    "false"
                ]
            },
            {
                "ans": [
                    "Alternate mode",
                    "true"
                ]
            },
            {
                "ans": [
                    "Standby mode",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the impact of a failed thrust resolver sensor?",
        "ansGr": [
            {
                "ans": [
                    "No EGT reading",
                    "false"
                ]
            },
            {
                "ans": [
                    "Fixed thrust setting",
                    "false"
                ]
            },
            {
                "ans": [
                    "Engine enters alternate mode",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What is the function of the EDIU?",
        "ansGr": [
            {
                "ans": [
                    "Transmits engine indication to cockpit",
                    "true"
                ]
            },
            {
                "ans": [
                    "Controls turbine rotation",
                    "false"
                ]
            },
            {
                "ans": [
                    "Starts the engine",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What happens if the N2 signal is lost?",
        "ansGr": [
            {
                "ans": [
                    "EGT is disabled",
                    "false"
                ]
            },
            {
                "ans": [
                    "Engine enters alternate mode",
                    "false"
                ]
            },
            {
                "ans": [
                    "Engine may surge",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "How is thrust reverser deploy monitored?",
        "ansGr": [
            {
                "ans": [
                    "EEC analog signal",
                    "false"
                ]
            },
            {
                "ans": [
                    "Sleeve position sensors",
                    "true"
                ]
            },
            {
                "ans": [
                    "Oil pressure gauge",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What prevents asymmetrical thrust reverser deployment?",
        "ansGr": [
            {
                "ans": [
                    "Cross-communication sensors",
                    "true"
                ]
            },
            {
                "ans": [
                    "Mechanical interlock",
                    "false"
                ]
            },
            {
                "ans": [
                    "Lockout relay",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "How many scavenge pumps are used in the Trent 800?",
        "ansGr": [
            {
                "ans": [
                    "One",
                    "false"
                ]
            },
            {
                "ans": [
                    "Two",
                    "false"
                ]
            },
            {
                "ans": [
                    "Multiple (per bearing compartment)",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What would rising oil temp and falling pressure suggest?",
        "ansGr": [
            {
                "ans": [
                    "Scavenge pump failure",
                    "true"
                ]
            },
            {
                "ans": [
                    "Overfilled tank",
                    "false"
                ]
            },
            {
                "ans": [
                    "Filter bypassing",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the function of the air turbine starter?",
        "ansGr": [
            {
                "ans": [
                    "Cools EGT",
                    "false"
                ]
            },
            {
                "ans": [
                    "Spins N3 during start",
                    "true"
                ]
            },
            {
                "ans": [
                    "Sends power to igniters",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What happens during a hung start?",
        "ansGr": [
            {
                "ans": [
                    "N3 increases rapidly",
                    "false"
                ]
            },
            {
                "ans": [
                    "EGT continues rising without RPM increase",
                    "true"
                ]
            },
            {
                "ans": [
                    "Engine shuts down normally",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the purpose of the cowl position switches in the fan cowl system?",
        "ansGr": [
            {
                "ans": [
                    "To detect thrust lever position",
                    "false"
                ]
            },
            {
                "ans": [
                    "To indicate cowl open or closed",
                    "true"
                ]
            },
            {
                "ans": [
                    "To energize fuel pumps",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What must be done before opening the fan cowls with PDOS?",
        "ansGr": [
            {
                "ans": [
                    "Turn off hydraulics",
                    "false"
                ]
            },
            {
                "ans": [
                    "Insert lockout pin",
                    "true"
                ]
            },
            {
                "ans": [
                    "Set thrust levers to idle",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What component directs air into the fan and core paths?",
        "ansGr": [
            {
                "ans": [
                    "Bypass duct",
                    "false"
                ]
            },
            {
                "ans": [
                    "Fan stator vanes",
                    "false"
                ]
            },
            {
                "ans": [
                    "Inlet guide vanes",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What is the most likely cause of low N1 but normal N2 and N3?",
        "ansGr": [
            {
                "ans": [
                    "Fan blade damage",
                    "true"
                ]
            },
            {
                "ans": [
                    "Fuel pump failure",
                    "false"
                ]
            },
            {
                "ans": [
                    "N1 sensor misread",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What does the engine fuel temperature sensor monitor?",
        "ansGr": [
            {
                "ans": [
                    "Fuel return line temperature",
                    "false"
                ]
            },
            {
                "ans": [
                    "Fuel at combustor",
                    "false"
                ]
            },
            {
                "ans": [
                    "Fuel inlet to FMU",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What signal does the EEC use to calculate fuel metering?",
        "ansGr": [
            {
                "ans": [
                    "N3 speed",
                    "true"
                ]
            },
            {
                "ans": [
                    "Oil pressure",
                    "false"
                ]
            },
            {
                "ans": [
                    "APU load",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What causes no ignition during engine start?",
        "ansGr": [
            {
                "ans": [
                    "FMU power failure",
                    "false"
                ]
            },
            {
                "ans": [
                    "EGT overheat",
                    "false"
                ]
            },
            {
                "ans": [
                    "Inoperative exciter or igniter",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "How is the igniter plug inspected?",
        "ansGr": [
            {
                "ans": [
                    "Vibration check",
                    "false"
                ]
            },
            {
                "ans": [
                    "Resistance and visual inspection",
                    "true"
                ]
            },
            {
                "ans": [
                    "High-pressure test",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "How is the temperature of bleed air controlled?",
        "ansGr": [
            {
                "ans": [
                    "Precooler and temperature sensor",
                    "true"
                ]
            },
            {
                "ans": [
                    "Oil cooler",
                    "false"
                ]
            },
            {
                "ans": [
                    "Variable stator vanes",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What component controls air delivery pressure in bleed system?",
        "ansGr": [
            {
                "ans": [
                    "PRSOV",
                    "true"
                ]
            },
            {
                "ans": [
                    "TCCV",
                    "false"
                ]
            },
            {
                "ans": [
                    "APU controller",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What would cause the EEC to lock thrust at a fixed setting?",
        "ansGr": [
            {
                "ans": [
                    "Damaged N1 sensor",
                    "false"
                ]
            },
            {
                "ans": [
                    "Total loss of EEC power",
                    "true"
                ]
            },
            {
                "ans": [
                    "Invalid resolver signal",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "In alternate mode, which parameter becomes primary for thrust management?",
        "ansGr": [
            {
                "ans": [
                    "N1",
                    "true"
                ]
            },
            {
                "ans": [
                    "EPR",
                    "false"
                ]
            },
            {
                "ans": [
                    "N2",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What provides N2 signal to the cockpit?",
        "ansGr": [
            {
                "ans": [
                    "APU generator",
                    "false"
                ]
            },
            {
                "ans": [
                    "Dedicated speed sensor",
                    "true"
                ]
            },
            {
                "ans": [
                    "Oil pressure switch",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What causes a steady amber box around an engine parameter on EICAS?",
        "ansGr": [
            {
                "ans": [
                    "Sensor misalignment",
                    "false"
                ]
            },
            {
                "ans": [
                    "Parameter outside normal limits",
                    "true"
                ]
            },
            {
                "ans": [
                    "Display refresh error",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What does the T/R control valve do?",
        "ansGr": [
            {
                "ans": [
                    "Blocks pressure to the EEC",
                    "false"
                ]
            },
            {
                "ans": [
                    "Directs hydraulic pressure to actuators",
                    "true"
                ]
            },
            {
                "ans": [
                    "Prevents over-speed",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "Which condition prevents thrust reverser operation?",
        "ansGr": [
            {
                "ans": [
                    "Oil temp too low",
                    "false"
                ]
            },
            {
                "ans": [
                    "Engine N1 > 80%",
                    "false"
                ]
            },
            {
                "ans": [
                    "Aircraft airborne",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What is the typical oil consumption limit for Trent 800?",
        "ansGr": [
            {
                "ans": [
                    "1 liter/hour",
                    "false"
                ]
            },
            {
                "ans": [
                    "0.5 liters/hour",
                    "false"
                ]
            },
            {
                "ans": [
                    "As specified in AMM per flight hour",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What causes oil pressure to drop and temperature to rise simultaneously?",
        "ansGr": [
            {
                "ans": [
                    "Bypass valve opens",
                    "false"
                ]
            },
            {
                "ans": [
                    "Oil leak or pump fault",
                    "true"
                ]
            },
            {
                "ans": [
                    "Engine shutdown",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What indicates a successful light-up during engine start?",
        "ansGr": [
            {
                "ans": [
                    "N1 increase",
                    "false"
                ]
            },
            {
                "ans": [
                    "N2 increase",
                    "false"
                ]
            },
            {
                "ans": [
                    "EGT rise",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "How does the EEC detect engine hung start?",
        "ansGr": [
            {
                "ans": [
                    "N1 stuck",
                    "false"
                ]
            },
            {
                "ans": [
                    "EGT rise with no N3 movement",
                    "false"
                ]
            },
            {
                "ans": [
                    "N3 does not stabilize",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What is the role of the lockout pin in PDOS?",
        "ansGr": [
            {
                "ans": [
                    "Isolates hydraulic return line",
                    "false"
                ]
            },
            {
                "ans": [
                    "Prevents inadvertent PDOS activation",
                    "true"
                ]
            },
            {
                "ans": [
                    "Disables fuel pressure",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What prevents hydraulic fluid from draining when PDOS is disconnected?",
        "ansGr": [
            {
                "ans": [
                    "Manual valve",
                    "false"
                ]
            },
            {
                "ans": [
                    "Quick-disconnect check valve",
                    "true"
                ]
            },
            {
                "ans": [
                    "Return line restrictor",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the primary cause of low N3 and normal N2 and N1?",
        "ansGr": [
            {
                "ans": [
                    "Turbine seal leak",
                    "false"
                ]
            },
            {
                "ans": [
                    "N3 sensor malfunction",
                    "false"
                ]
            },
            {
                "ans": [
                    "HP turbine issue",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What system drives the AGB (accessory gearbox)?",
        "ansGr": [
            {
                "ans": [
                    "N1 spool",
                    "false"
                ]
            },
            {
                "ans": [
                    "N2 spool",
                    "false"
                ]
            },
            {
                "ans": [
                    "N3 spool",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What happens if the fuel flow transmitter fails?",
        "ansGr": [
            {
                "ans": [
                    "Fuel flow remains fixed",
                    "false"
                ]
            },
            {
                "ans": [
                    "Flow not displayed on EICAS",
                    "true"
                ]
            },
            {
                "ans": [
                    "EEC enters alternate mode",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the function of the fuel filter differential pressure switch?",
        "ansGr": [
            {
                "ans": [
                    "Regulates flow",
                    "false"
                ]
            },
            {
                "ans": [
                    "Opens bypass",
                    "false"
                ]
            },
            {
                "ans": [
                    "Sends warning to EICAS",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What is the function of the ignition exciter?",
        "ansGr": [
            {
                "ans": [
                    "Converts AC to DC",
                    "false"
                ]
            },
            {
                "ans": [
                    "Generates high-voltage spark",
                    "true"
                ]
            },
            {
                "ans": [
                    "Filters bleed air",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "Which component energizes the exciter?",
        "ansGr": [
            {
                "ans": [
                    "APU",
                    "false"
                ]
            },
            {
                "ans": [
                    "EEC",
                    "true"
                ]
            },
            {
                "ans": [
                    "EICAS",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What prevents hot bleed air from damaging downstream components?",
        "ansGr": [
            {
                "ans": [
                    "Fan air cooler",
                    "false"
                ]
            },
            {
                "ans": [
                    "Precooler and sensor logic",
                    "true"
                ]
            },
            {
                "ans": [
                    "Engine oil cooler",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What effect does a failed bleed temperature sensor have?",
        "ansGr": [
            {
                "ans": [
                    "Engine N1 drops",
                    "false"
                ]
            },
            {
                "ans": [
                    "PRSOV closes",
                    "true"
                ]
            },
            {
                "ans": [
                    "Bleed leak warning",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What happens if the EEC detects conflicting thrust commands?",
        "ansGr": [
            {
                "ans": [
                    "N1 goes to idle",
                    "false"
                ]
            },
            {
                "ans": [
                    "Alternate mode is activated",
                    "true"
                ]
            },
            {
                "ans": [
                    "Thrust lever lock engages",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What parameter is used by EEC to limit engine thrust?",
        "ansGr": [
            {
                "ans": [
                    "Oil pressure",
                    "false"
                ]
            },
            {
                "ans": [
                    "N1",
                    "false"
                ]
            },
            {
                "ans": [
                    "EGT",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What could cause all engine parameters to blank on EICAS?",
        "ansGr": [
            {
                "ans": [
                    "AIMS failure",
                    "true"
                ]
            },
            {
                "ans": [
                    "Oil temp too high",
                    "false"
                ]
            },
            {
                "ans": [
                    "FADEC misread",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What system calculates the values displayed for EPR, N1, and N2?",
        "ansGr": [
            {
                "ans": [
                    "EICAS",
                    "false"
                ]
            },
            {
                "ans": [
                    "EDIU",
                    "false"
                ]
            },
            {
                "ans": [
                    "EEC",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "How is reverser sync ensured between both sleeves?",
        "ansGr": [
            {
                "ans": [
                    "Torque shaft",
                    "true"
                ]
            },
            {
                "ans": [
                    "Proximity sensor",
                    "false"
                ]
            },
            {
                "ans": [
                    "Pressure sensor",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the first step in reverser deployment?",
        "ansGr": [
            {
                "ans": [
                    "Igniter shutdown",
                    "false"
                ]
            },
            {
                "ans": [
                    "Hydraulic unlock signal",
                    "true"
                ]
            },
            {
                "ans": [
                    "Fire switch pull",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What causes oil pressure fluctuations at idle?",
        "ansGr": [
            {
                "ans": [
                    "Worn pump gears",
                    "false"
                ]
            },
            {
                "ans": [
                    "Normal depending on oil temp",
                    "true"
                ]
            },
            {
                "ans": [
                    "Scavenge blockage",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "What is the function of the oil scavenge filter?",
        "ansGr": [
            {
                "ans": [
                    "Removes debris from returning oil",
                    "true"
                ]
            },
            {
                "ans": [
                    "Preheats the oil",
                    "false"
                ]
            },
            {
                "ans": [
                    "Controls oil pressure",
                    "false"
                ]
            }
        ]
    },
    {
        "ch": "Which component senses N3 rotation to monitor the start sequence?",
        "ansGr": [
            {
                "ans": [
                    "N2 sensor",
                    "false"
                ]
            },
            {
                "ans": [
                    "Starter valve",
                    "false"
                ]
            },
            {
                "ans": [
                    "N3 speed sensor",
                    "true"
                ]
            }
        ]
    },
    {
        "ch": "What happens if EGT exceeds during engine start?",
        "ansGr": [
            {
                "ans": [
                    "EEC aborts start",
                    "true"
                ]
            },
            {
                "ans": [
                    "Starter valve closes",
                    "false"
                ]
            },
            {
                "ans": [
                    "Fuel flow doubles",
                    "false"
                ]
            }
        ]
    }
]