[
{
"part": "PW",
"ch": "Pamb sensors are found on",
"ansGr": [
{
"ans": [
"Fan cowls",
"true"
]
},
{
"ans": [
"Inlet cowl",
"false"
]
},
{
"ans": [
"Thrust reverser cowls",
"false"
]
}
]
},
{
"ch": "How many intermediate pressure sensors are installed on engine",
"ansGr": [
{
"ans": [
"One",
"true"
]
},
{
"ans": [
"Two",
"false"
]
},
{
"ans": [
"Three",
"false"
]
}
]
},
{
"ch": "Where is located intermediate pressure sensor",
"ansGr": [
{
"ans": [
"On engine strut",
"false"
]
},
{
"ans": [
"On left fan case",
"false"
]
},
{
"ans": [
"On right fan case",
"true"
]
}
]
},
{
"ch": "The fan cowls are open by",
"ansGr": [
{
"ans": [
"Hold open rods",
"false"
]
},
{
"ans": [
"Spring actuators",
"false"
]
},
{
"ans": [
"PDOS",
"true"
]
}
]
},
{
"ch": "The forward lower engine mount attached to the engine at",
"ansGr": [
{
"ans": [
"Intermediate case",
"true"
]
},
{
"ans": [
"Fan case",
"false"
]
},
{
"ans": [
"Exhaust case",
"false"
]
}
]
},
{
"ch": "To open the cowls, you use",
"ansGr": [
{
"ans": [
"An electric motor on the pylon",
"false"
]
},
{
"ans": [
"A manual drive lug on the inlet cowl left side",
"false"
]
},
{
"ans": [
"PDOS",
"true"
]
}
]
},
{
"ch": "When you service PDOS pump, the cowls should be",
"ansGr": [
{
"ans": [
"Open and locked",
"false"
]
},
{
"ans": [
"Open",
"false"
]
},
{
"ans": [
"Closed",
"true"
]
}
]
},
{
"ch": "To open the fan cowl panel:",
"ansGr": [
{
"ans": [
"Open the fan cowl panel latches from aft to forward.",
"true"
]
},
{
"ans": [
"Open the fan cowl panel latches from forward to aft.",
"false"
]
},
{
"ans": [
"Open the fan cowl latches from any location.",
"false"
]
}
]
},
{
"ch": "Fan cowl hold-open rods are fully locked into their extended position (safe condition to work under the fan cowl opened) when:",
"ansGr": [
{
"ans": [
"You see the GREEN safety stripe on the lower side of the lock collar.",
"false"
]
},
{
"ans": [
"You see the YELLOW safety stripe on the lower side of the lock collar.",
"true"
]
},
{
"ans": [
"You see the RED stripe on the lock collar.",
"false"
]
}
]
},
{
"ch": "It is dangerous to work around engines:",
"ansGr": [
{
"ans": [
"Never go near an engine in operation.",
"false"
]
},
{
"ans": [
"Using the engine entry corridors to go near an engine in operation and only when the engine is at idle (forward and reverse thrust) and you can speak with the flight deck",
"false"
]
},
{
"ans": [
"Using the engine entry corridors to go near an engine in operation and only when the engine is at idle (forward thrust only) and you can speak with the flight deck",
"true"
]
}
]
},
{
"ch": "Before examining the oil level of the PDOS pump/power pack make sure:",
"ansGr": [
{
"ans": [
"The fan cowl panels and the thrust reversers are in the closed position.",
"true"
]
},
{
"ans": [
"The fan cowl panels and the thrust reversers are in the open position.",
"false"
]
},
{
"ans": [
"The thrust reversers are deactivated",
"false"
]
}
]
},
{
"ch": "Each thrust reverser half has:",
"ansGr": [
{
"ans": [
"01 telescopic hold-open rod.",
"false"
]
},
{
"ans": [
"02 hold open rods: 01 telescopic and 01 fixed.",
"false"
]
},
{
"ans": [
"02 telescopic hold-open rods.",
"true"
]
}
]
},
{
"ch": "Which latches DO NOT connect the thrust reverser halves together?",
"ansGr": [
{
"ans": [
"Load share latches.",
"true"
]
},
{
"ans": [
"Split line latches.",
"false"
]
},
{
"ans": [
"Latch beam latches.",
"false"
]
}
]
},
{
"ch": "Choose the positive statement:",
"ansGr": [
{
"ans": [
"A warning pin comes out of the bottom of the thrust reverser if the V-band latch is not closed.",
"false"
]
},
{
"ans": [
"You cannot close the left fan cowl with the warning pin out.",
"true"
]
},
{
"ans": [
"You cannot close the right fan cowl with the warning pin out.",
"false"
]
}
]
},
{
"ch": "What is the Boeing Equivalent Thrust (BET) for PW4084 engine?",
"ansGr": [
{
"ans": [
"90600 lb",
"false"
]
},
{
"ans": [
"84600 lb",
"true"
]
},
{
"ans": [
"110000 lb",
"false"
]
}
]
},
{
"ch": "The PW4084 engine’s bypass ratio is",
"ansGr": [
{
"ans": [
"8.4:1",
"false"
]
},
{
"ans": [
"7.5:1",
"false"
]
},
{
"ans": [
"6.4:1",
"true"
]
}
]
},
{
"ch": "The PW4084 engine has these gearboxes",
"ansGr": [
{
"ans": [
"Inlet, transfer, accessory",
"false"
]
},
{
"ans": [
"Internal, angle, main",
"true"
]
},
{
"ans": [
"Inlet, angle, main",
"false"
]
}
]
},
{
"ch": "PW4084 engine’s Fan inlet cone has",
"ansGr": [
{
"ans": [
"Three pieces",
"false"
]
},
{
"ans": [
"Two pieces",
"true"
]
},
{
"ans": [
"One piece",
"false"
]
}
]
},
{
"ch": "PW4084 engine’s 22 wide-chord fan blades are made of",
"ansGr": [
{
"ans": [
"Titanium",
"true"
]
},
{
"ans": [
"Carbon fiber and resin with titanium leading and trailing edges",
"false"
]
},
{
"ans": [
"Steel",
"false"
]
}
]
},
{
"ch": "The LP rotor system (N1) of the engine consists of:",
"ansGr": [
{
"ans": [
"A seven-stage low pressure compressor (LPC) connected to a seven -stage low pressure turbine (LPT). The first stage of the LPC is the fan.",
"true"
]
},
{
"ans": [
"A four-stage low pressure compressor (LPC) connected to a six-stage low pressure turbine (LPT). The first stage of the LPC is the fan.",
"false"
]
},
{
"ans": [
"A three-stage-low pressure compressor (LPC) connected to a seven-stage low pressure turbine (LPT). The first stage of the LPC is the fan.",
"false"
]
}
]
},
{
"ch": "The bypass ratio of the PW4000 engine is 6.4:1. This means that:",
"ansGr": [
{
"ans": [
"6.4 times more total air goes through the engine than primary air.",
"false"
]
},
{
"ans": [
"6.4 times more primary air goes through the engine than secondary air.",
"false"
]
},
{
"ans": [
"6.4 times more secondary air goes through the engine than primary air",
"true"
]
}
]
},
{
"ch": "The MAIN GEAR BOX gets torque from:",
"ansGr": [
{
"ans": [
"The N1 shaft through the radial drive shaft",
"false"
]
},
{
"ans": [
"The N2 shaft through the horizontal drive shaft",
"false"
]
},
{
"ans": [
"The N2 shaft through the tower and the lay shaft",
"true"
]
}
]
},
{
"ch": "What is the purpose of the borescope cranking pad?",
"ansGr": [
{
"ans": [
"To turn the N1 shaft when you make borescope inspections.",
"false"
]
},
{
"ans": [
"To turn manually the N2 shaft at the N2 crank pad when you make borescope inspections.",
"true"
]
},
{
"ans": [
"To turn the lay shaft when you make borescope inspections.",
"false"
]
}
]
},
{
"ch": "There are three gear boxes on the engine. What are they:",
"ansGr": [
{
"ans": [
"Inlet, transfer and accessory gearbox.",
"false"
]
},
{
"ans": [
"Internal, angle and accessory gearbox.",
"false"
]
},
{
"ans": [
"Internal, angle and main gearbox.",
"true"
]
}
]
},
{
"ch": "The sensor that is located on the upper left side of the engine inlet case is:",
"ansGr": [
{
"ans": [
"T2.",
"false"
]
},
{
"ans": [
"P2.",
"false"
]
},
{
"ans": [
"P2/T2.",
"true"
]
}
]
},
{
"ch": "How many fan blades are there on the engine?",
"ansGr": [
{
"ans": [
"20.",
"false"
]
},
{
"ans": [
"22.",
"true"
]
},
{
"ans": [
"36.",
"false"
]
}
]
},
{
"ch": "Wiring harnesses for EEC channel are identified by which color",
"ansGr": [
{
"ans": [
"Channel A blue, channel B red",
"false"
]
},
{
"ans": [
"Channel A blue, channel B yellow",
"false"
]
},
{
"ans": [
"Channel A blue, channel B green",
"true"
]
}
]
},
{
"ch": "Which color is used for thermo couple wires",
"ansGr": [
{
"ans": [
"Yellow",
"true"
]
},
{
"ans": [
"White",
"false"
]
},
{
"ans": [
"Gray",
"false"
]
}
]
},
{
"ch": "Normal power source for EEC is from",
"ansGr": [
{
"ans": [
"Permanent Magnet Alternator",
"true"
]
},
{
"ans": [
"Airplane power",
"false"
]
},
{
"ans": [
"Control alternator",
"false"
]
}
]
},
{
"ch": "PMA supply power to EEC when N2 reach",
"ansGr": [
{
"ans": [
"5 %",
"true"
]
},
{
"ans": [
"7 %",
"false"
]
},
{
"ans": [
"11 %",
"false"
]
}
]
},
{
"ch": "EEC progarmming plug is direct input to which channel",
"ansGr": [
{
"ans": [
"Channel A",
"true"
]
},
{
"ans": [
"Channel B",
"false"
]
},
{
"ans": [
"Both channel",
"false"
]
}
]
},
{
"ch": "What happens if EEC programming plug is not initially installed",
"ansGr": [
{
"ans": [
"Engine can only be run at minimum power",
"false"
]
},
{
"ans": [
"EEC will not permit engine start",
"true"
]
},
{
"ans": [
"Engine can only be run in alternate mode",
"false"
]
}
]
},
{
"ch": "What happens if EEC programming plug disconnected in flight",
"ansGr": [
{
"ans": [
"EEC will shut down the engine",
"false"
]
},
{
"ans": [
"EEC will reduce engine power to minimum",
"false"
]
},
{
"ans": [
"EEC use programming information stored in memory and engine is running normally",
"true"
]
}
]
},
{
"ch": "EEC is normally operate in",
"ansGr": [
{
"ans": [
"N1 mode",
"false"
]
},
{
"ans": [
"N2 mode",
"false"
]
},
{
"ans": [
"EPR mode",
"true"
]
}
]
},
{
"ch": "EEC programming plug",
"ansGr": [
{
"ans": [
"Is matched to the EEC",
"false"
]
},
{
"ans": [
"Is matched to the engine",
"true"
]
},
{
"ans": [
"Has the engine serial number stamped on it",
"false"
]
}
]
},
{
"ch": "EEC controls minimum ground idle speed to give limit protection (fuel topping) for",
"ansGr": [
{
"ans": [
"N1, N2, Pb",
"true"
]
},
{
"ans": [
"N1, N2, EGT",
"false"
]
},
{
"ans": [
"N1, Pb, EGT",
"false"
]
}
]
},
{
"ch": "The EEC has two channels, but only one is in control at a time (primary channel). The primary channel changes each time:",
"ansGr": [
{
"ans": [
"You start the engine",
"true"
]
},
{
"ans": [
"You shut down the engine",
"false"
]
},
{
"ans": [
"The airplane is powered up",
"false"
]
}
]
},
{
"ch": "Where is the EEC located?",
"ansGr": [
{
"ans": [
"It attaches to the upper-left fan case with shock mounts.",
"false"
]
},
{
"ans": [
"It attaches to the upper-right fan case with shock mounts.",
"false"
]
},
{
"ans": [
"It attaches to the lower-left fan case with shock mounts.",
"true"
]
}
]
},
{
"ch": "Where is the programming plug located?",
"ansGr": [
{
"ans": [
"It attaches to the upper left fan case with a lanyard.",
"false"
]
},
{
"ans": [
"It attaches to the engine fan case with a lanyard.",
"true"
]
},
{
"ans": [
"It attaches to the EEC on the lower-left fan case with a lanyard.",
"false"
]
}
]
},
{
"ch": "What color of the engine wires is used for non-EEC circuits?",
"ansGr": [
{
"ans": [
"White.",
"false"
]
},
{
"ans": [
"Gray.",
"true"
]
},
{
"ans": [
"Yellow.",
"false"
]
}
]
},
{
"ch": "What color of the engine wires is used for EEC channel B signals?",
"ansGr": [
{
"ans": [
"Yellow.",
"false"
]
},
{
"ans": [
"Green.",
"true"
]
},
{
"ans": [
"Blue.",
"false"
]
}
]
},
{
"ch": "What color of the engine wires is used for EEC channel A signals?",
"ansGr": [
{
"ans": [
"Blue.",
"true"
]
},
{
"ans": [
"Green.",
"false"
]
},
{
"ans": [
"Yellow.",
"false"
]
}
]
},
{
"ch": "What color of the engine wires is used for thermocouple signals?",
"ansGr": [
{
"ans": [
"Gray.",
"false"
]
},
{
"ans": [
"Green.",
"false"
]
},
{
"ans": [
"Yellow.",
"true"
]
}
]
},
{
"ch": "The ignition system exciter boxes are powered by 115V AC airplane power supply through the",
"ansGr": [
{
"ans": [
"ERU",
"true"
]
},
{
"ans": [
"EEC",
"false"
]
},
{
"ans": [
"PMA",
"false"
]
}
]
},
{
"ch": "The igniter plugs are cooled by",
"ansGr": [
{
"ans": [
"Servo fuel",
"false"
]
},
{
"ans": [
"Fan air",
"true"
]
},
{
"ans": [
"12th stage air",
"false"
]
}
]
},
{
"ch": "Because output voltages from the exciter box can be lethal, it is recommended that exciter high tension lead should",
"ansGr": [
{
"ans": [
"Be touched against a grounded engine part",
"true"
]
},
{
"ans": [
"Never be disconnected",
"false"
]
},
{
"ans": [
"Be left alone for 12 hours",
"false"
]
}
]
},
{
"ch": "Where are located the exciters",
"ansGr": [
{
"ans": [
"On left side of main gear box",
"false"
]
},
{
"ans": [
"On right side of main gear box",
"true"
]
},
{
"ans": [
"On top of main gear box",
"false"
]
}
]
},
{
"ch": "How many igniters are installed on engine",
"ansGr": [
{
"ans": [
"One",
"false"
]
},
{
"ans": [
"Two",
"true"
]
},
{
"ans": [
"Three",
"false"
]
}
]
},
{
"ch": "Which igniter will operate in Automatic relight mode",
"ansGr": [
{
"ans": [
"Upper igniter",
"false"
]
},
{
"ans": [
"Lower igniter",
"false"
]
},
{
"ans": [
"Both igniters",
"true"
]
}
]
},
{
"ch": "Which component controls igniter operation",
"ansGr": [
{
"ans": [
"ERU",
"false"
]
},
{
"ans": [
"EEC",
"true"
]
},
{
"ans": [
"ELMS",
"false"
]
}
]
},
{
"ch": "Which one of the following statements is NOT true?",
"ansGr": [
{
"ans": [
"Make sure that the ignition system does not operate for five minutes before you remove the component. Ignition voltage is dangerously high and can cause injury to persons",
"false"
]
},
{
"ans": [
"Make sure that the ignition cable be touched to the ignition plug case immediately after the removal of the cable from the igniter plug. Ignition voltage is dangerously high and can cause injury to persons.",
"false"
]
},
{
"ans": [
"Make sure that the ignition system does not operate for at least ten minutes before you remove the component. Ignition voltage is dangerously high and can cause injury to persons",
"true"
]
}
]
},
{
"ch": "In which case does the ignition system use two igniters?",
"ansGr": [
{
"ans": [
"First autostart on the ground.",
"false"
]
},
{
"ans": [
"A normal in-flight start.",
"true"
]
},
{
"ans": [
"A manual start on the ground.",
"false"
]
}
]
},
{
"ch": "What is the purpose of the engine air system?",
"ansGr": [
{
"ans": [
"To control the engine bleed air to the pneumatic system.",
"false"
]
},
{
"ans": [
"To control the engine bleed air to the engine anti-ice system.",
"false"
]
},
{
"ans": [
"To control the cooling air to the engine and the airflow through the compressors",
"true"
]
}
]
},
{
"ch": "Which components does the compressor bleed control system use to send air overboard?",
"ansGr": [
{
"ans": [
"Variable bypass valves (VBVs).",
"false"
]
},
{
"ans": [
"2.5 and 2.9 bleed valves.",
"true"
]
},
{
"ans": [
"Variable stator vanes (VSVs)",
"false"
]
}
]
},
{
"ch": "Where does the Turbine vane and blade cooling system take air from to cool the vanes and blades?",
"ansGr": [
{
"ans": [
"Fan air.",
"false"
]
},
{
"ans": [
"7th stage air.",
"false"
]
},
{
"ans": [
"12th stage air.",
"true"
]
}
]
},
{
"ch": "What system uses servo fuel to operate?",
"ansGr": [
{
"ans": [
"2.5 bleed system.",
"true"
]
},
{
"ans": [
"2.9 bleed system.",
"false"
]
},
{
"ans": [
"TVBC system.",
"false"
]
}
]
},
{
"ch": "Where is located EEC",
"ansGr": [
{
"ans": [
"Fan case at 3 o’clock position",
"false"
]
},
{
"ans": [
"Fan case at 7 o’clock position",
"true"
]
},
{
"ans": [
"Fan case at 12 o’clock position",
"false"
]
}
]
},
{
"ch": "EEC gets power from",
"ansGr": [
{
"ans": [
"Permanent magnet generator",
"true"
]
},
{
"ans": [
"Control alternator",
"false"
]
},
{
"ans": [
"Backup generator",
"false"
]
}
]
},
{
"ch": "Which color is used for EEC connector channel A",
"ansGr": [
{
"ans": [
"Green",
"false"
]
},
{
"ans": [
"Blue",
"true"
]
},
{
"ans": [
"Yellow",
"false"
]
}
]
},
{
"ch": "EEC gets engine inlet temperature from",
"ansGr": [
{
"ans": [
"P1.2/T1.2 probe",
"false"
]
},
{
"ans": [
"P2/T2 probe",
"true"
]
},
{
"ans": [
"P2/T3 probe",
"false"
]
}
]
},
{
"ch": "Which sensor does EEC used to get EGT",
"ansGr": [
{
"ans": [
"T4.95 thermocouple",
"true"
]
},
{
"ans": [
"T5 thermocouple",
"false"
]
},
{
"ans": [
"Pyrometer",
"false"
]
}
]
},
{
"ch": "Wiring harness bifurcation conduit is used to protect and distribute wiring harness between",
"ansGr": [
{
"ans": [
"Engine fan case and engine core",
"true"
]
},
{
"ans": [
"Engine strut and engine fan case",
"false"
]
},
{
"ans": [
"Engine strut and engine core",
"false"
]
}
]
},
{
"ch": "When is EEC control channel be switch over",
"ansGr": [
{
"ans": [
"On each engine start",
"true"
]
},
{
"ans": [
"On each landing",
"false"
]
},
{
"ans": [
"On each take off",
"false"
]
}
]
},
{
"ch": "Which of the followings is the analog signal that EEC get from aircraft",
"ansGr": [
{
"ans": [
"Thrust level angle",
"true"
]
},
{
"ans": [
"Ambient air pressure data",
"false"
]
},
{
"ans": [
"Ambient air temperature data",
"false"
]
}
]
},
{
"ch": "Which mode is EEC rated mode",
"ansGr": [
{
"ans": [
"EPR",
"true"
]
},
{
"ans": [
"N1",
"false"
]
},
{
"ans": [
"N2",
"false"
]
}
]
},
{
"ch": "Which mode is EEC alternate mode",
"ansGr": [
{
"ans": [
"EPR",
"false"
]
},
{
"ans": [
"N1",
"true"
]
},
{
"ans": [
"N2",
"false"
]
}
]
},
{
"ch": "What is the purpose of the TLA resolver?",
"ansGr": [
{
"ans": [
"To supply the EEC with an electrical signal in proportion to the thrust lever angular position.",
"true"
]
},
{
"ans": [
"To supply EDIU with an electrical signal in proportion to the thrust lever angular position.",
"false"
]
},
{
"ans": [
"To supply EEC with an electrical signal in invert ratio to the thrust lever angular position.",
"false"
]
}
]
},
{
"ch": "How to make the manual control inputs to operate the engine?",
"ansGr": [
{
"ans": [
"The AIMS through the thrust levers.",
"false"
]
},
{
"ans": [
"The thrust levers through the switch pack.",
"false"
]
},
{
"ans": [
"The thrust levers and fuel control switches.",
"true"
]
}
]
},
{
"ch": "How to make the control automatic inputs to operate the engine?",
"ansGr": [
{
"ans": [
"The AIMS through the thrust levers.",
"true"
]
},
{
"ans": [
"The thrust levers through the switch pack.",
"false"
]
},
{
"ans": [
"The thrust levers and fuel control switches.",
"false"
]
}
]
},
{
"ch": "The start and stop function of the engine is controlled by:",
"ansGr": [
{
"ans": [
"The thrust levers.",
"false"
]
},
{
"ans": [
"The switch pack.",
"false"
]
},
{
"ans": [
"The fuel control switches.",
"true"
]
}
]
},
{
"ch": "The EEC maintenance switch has two positions. They are:",
"ansGr": [
{
"ans": [
"ON and OFF.",
"false"
]
},
{
"ans": [
"NORM and OFF.",
"false"
]
},
{
"ans": [
"NORM and TEST.",
"true"
]
}
]
},
{
"ch": "Where is the EEC maintenance switch located?",
"ansGr": [
{
"ans": [
"On the overhead panel (P5).",
"false"
]
},
{
"ans": [
"On the overhead panel (P11).",
"false"
]
},
{
"ans": [
"On the overhead panel (P61).",
"true"
]
}
]
},
{
"ch": "Which the following statements is the most accurate?",
"ansGr": [
{
"ans": [
"Manual control inputs to operate the engine are supplied by the thrust levers.",
"false"
]
},
{
"ans": [
"Manual control inputs to operate the engine are supplied by the AIMS.",
"false"
]
},
{
"ans": [
"Manual control inputs to operate the engine are supplied by the thrust levers and fuel control switches.",
"true"
]
}
]
},
{
"ch": "On EICAS display, cross bleed start indication (",
"ansGr": [
{
"ans": [
"BLD) can be shown on the top of",
"false"
]
},
{
"ans": [
"N1 indication",
"false"
]
},
{
"ans": [
"N2 indication",
"true"
]
},
{
"ans": [
"EGT indication",
"false"
]
}
]
},
{
"ch": "EGT start limit is shown on",
"ansGr": [
{
"ans": [
"Performance maintenance page",
"false"
]
},
{
"ans": [
"EPCS maintenance page",
"false"
]
},
{
"ans": [
"Propulsion data limit page",
"true"
]
}
]
},
{
"ch": "How many accelerometers are use by AVM to calculate engine vibration level",
"ansGr": [
{
"ans": [
"1",
"false"
]
},
{
"ans": [
"2",
"false"
]
},
{
"ans": [
"3",
"true"
]
}
]
},
{
"ch": "Which parameters are normally indicated on upper EICAS display",
"ansGr": [
{
"ans": [
"EPR, N1, EGT",
"true"
]
},
{
"ans": [
"EPR, N2, N2",
"false"
]
},
{
"ans": [
"N1, N2, EGT",
"false"
]
}
]
},
{
"ch": "Fuel-on line is marked on",
"ansGr": [
{
"ans": [
"N1 dial",
"false"
]
},
{
"ans": [
"N2 dial",
"true"
]
},
{
"ans": [
"EGT dial",
"false"
]
}
]
},
{
"ch": "The remote charger converter is used to",
"ansGr": [
{
"ans": [
"Convert accelerometer signals to digital format",
"false"
]
},
{
"ans": [
"Convert accelerometer signals and send them to AVM",
"true"
]
},
{
"ans": [
"Convert accelerometer signals and send them to EEC",
"false"
]
}
]
},
{
"ch": "What parameter can have start limit exceedance profile",
"ansGr": [
{
"ans": [
"N1",
"false"
]
},
{
"ans": [
"N2",
"false"
]
},
{
"ans": [
"EGT",
"true"
]
}
]
},
{
"ch": "Which vibration level will cause secondary engine display automatically shown",
"ansGr": [
{
"ans": [
"Vibration level exceed 3.0 scaler unit",
"false"
]
},
{
"ans": [
"Vibration level exceed 3.5 scaler unit",
"false"
]
},
{
"ans": [
"Vibration level exceed 4.0 scaler unit",
"true"
]
}
]
},
{
"ch": "Which engine maintenance page is used to show engine component position and engine control status",
"ansGr": [
{
"ans": [
"Performance maintenance page",
"false"
]
},
{
"ans": [
"EPCS maintenance page",
"true"
]
},
{
"ans": [
"Propulsion data limit page",
"false"
]
}
]
},
{
"ch": "Which component is used to calculate engine vibration level",
"ansGr": [
{
"ans": [
"EEC",
"false"
]
},
{
"ans": [
"AVM",
"true"
]
},
{
"ans": [
"AIMS",
"false"
]
}
]
},
{
"ch": "The engine pressure ratio (EPR) is the ratio of turbine exhaust to fan inlet pressure:",
"ansGr": [
{
"ans": [
"The ratio P5/P2",
"false"
]
},
{
"ans": [
"The ratio P4.95/P2",
"true"
]
},
{
"ans": [
"The ratio P5/P0.",
"false"
]
}
]
},
{
"ch": "For the alternate mode of the EEC, engine thrust is set with:",
"ansGr": [
{
"ans": [
"EPR.",
"false"
]
},
{
"ans": [
"N1.",
"true"
]
},
{
"ans": [
"N2.",
"false"
]
}
]
},
{
"ch": "In the alternate mode of the EEC, EPR indication is shown:",
"ansGr": [
{
"ans": [
"On the upper EICAS display.",
"false"
]
},
{
"ans": [
"On the lower EICAS display.",
"false"
]
},
{
"ans": [
"The EICAS display does not show EPR indications.",
"true"
]
}
]
},
{
"ch": "In the alternate mode of the EEC, the upper EICAS display shows:",
"ansGr": [
{
"ans": [
"EPR, N1, EGT.",
"false"
]
},
{
"ans": [
"N1, N2, EGT.",
"false"
]
},
{
"ans": [
"N1, EGT.",
"true"
]
}
]
},
{
"ch": "Which statement is true",
"ansGr": [
{
"ans": [
"Thrust reverser actuation system uses hydraulic power for operation and electrical power for control",
"true"
]
},
{
"ans": [
"Thrust reverser actuation systemuses electrical power for operation and electrical power for control",
"false"
]
},
{
"ans": [
"Thrust reverser actuation systemuses pneumatic power for operation and electrical power for control",
"false"
]
}
]
},
{
"ch": "Solenoids of which thrust reverser control valve are enegized by switches on control stand",
"ansGr": [
{
"ans": [
"Synlock solenoid valve and directional control valve",
"true"
]
},
{
"ans": [
"Synlock solenoid valve and isolation valve",
"false"
]
},
{
"ans": [
"Directional control valve and isolation valve",
"false"
]
}
]
},
{
"ch": "Which valve is control by EEC",
"ansGr": [
{
"ans": [
"Synlock solenoid valve",
"false"
]
},
{
"ans": [
"Directional control valve",
"false"
]
},
{
"ans": [
"Isolation valve",
"true"
]
}
]
},
{
"ch": "Which component does EEC use to monitor thrust reverser sleeves position for controling thrust reverser interlock actuator and scheduling thrust",
"ansGr": [
{
"ans": [
"Proximity sensors",
"false"
]
},
{
"ans": [
"RVDT",
"true"
]
},
{
"ans": [
"LVDT",
"false"
]
}
]
},
{
"ch": "Where is located thrust reverser maintenance switch",
"ansGr": [
{
"ans": [
"On engine oil tank",
"false"
]
},
{
"ans": [
"On right side of inlet cowl bulkhead",
"true"
]
},
{
"ans": [
"On left side of inlet cowl bulkhead",
"false"
]
}
]
},
{
"ch": "When does EEC energizes the throttle lever interlock actuator during thrust reverser deployment",
"ansGr": [
{
"ans": [
"Both sleeves are extended more than 60%",
"true"
]
},
{
"ans": [
"Both sleeves are extended more than 50%",
"false"
]
},
{
"ans": [
"Both sleeves are extended more than 40%",
"false"
]
}
]
},
{
"ch": "When does REV on upper EICAS display change from amber to green",
"ansGr": [
{
"ans": [
"Both sleeves are extended more than 60%",
"true"
]
},
{
"ans": [
"Both sleeves are extended more than 80%",
"false"
]
}
]
},
{
"ch": "Choose the right statement while operating the thrust reverser v-band latch handle:",
"ansGr": [
{
"ans": [
"Make sure that you are forward of the v-band latch.",
"true"
]
},
{
"ans": [
"Make sure that you are backward of the v-band latch.",
"false"
]
},
{
"ans": [
"Do not pull on the latch handle.",
"false"
]
}
]
},
{
"ch": "Where is the thrust reverser position transducer RVDT located?",
"ansGr": [
{
"ans": [
"On each lower actuator.",
"false"
]
},
{
"ans": [
"On each center actuator.",
"false"
]
},
{
"ans": [
"On each upper actuator.",
"true"
]
}
]
},
{
"ch": "What is the purpose of the directional control valve in the TRAS?",
"ansGr": [
{
"ans": [
"To isolate the airplane hydraulic system from the TRAS.",
"false"
]
},
{
"ans": [
"To supply hydraulic pressure to extend or retract the thrust reverser actuators.",
"true"
]
},
{
"ans": [
"To supply the hydraulic control pressure to release the sync lock/manual drive unit.",
"false"
]
}
]
},
{
"ch": "What is the purpose of the isolation valve in the TRAS?",
"ansGr": [
{
"ans": [
"To isolate the airplane hydraulic system from the TRAS.",
"true"
]
},
{
"ans": [
"To supply hydraulic pressure to extend or retract the thrust reverser actuators.",
"false"
]
},
{
"ans": [
"To supply the hydraulic control pressure to release the sync lock/manual drive unit.",
"false"
]
}
]
},
{
"ch": "Where is located master chip detector",
"ansGr": [
{
"ans": [
"On gearbox",
"false"
]
},
{
"ans": [
"On oil pump",
"false"
]
},
{
"ans": [
"On oil tank",
"true"
]
}
]
},
{
"ch": "How many air/oil heat exchangers are installed on engine",
"ansGr": [
{
"ans": [
"1",
"false"
]
},
{
"ans": [
"2",
"false"
]
},
{
"ans": [
"3",
"true"
]
}
]
},
{
"ch": "Which component is used to remove oil from breather air",
"ansGr": [
{
"ans": [
"Oil separator",
"false"
]
},
{
"ans": [
"Deoiler",
"true"
]
},
{
"ans": [
"Air separator",
"false"
]
}
]
},
{
"ch": "The oil system is called a ‘hot tank’ system because",
"ansGr": [
{
"ans": [
"Uncooled pressure oil is sent to the tank",
"false"
]
},
{
"ans": [
"Uncooled scavenge oil is sent to the tank",
"true"
]
},
{
"ans": [
"Uncooled scavenge oil is sent to bearings",
"false"
]
}
]
},
{
"ch": "Engine oil temperature sensor has 2 thermo couples",
"ansGr": [
{
"ans": [
"One is primary, other is back up",
"false"
]
},
{
"ans": [
"One is for pressure oil, other is for returned oil",
"false"
]
},
{
"ans": [
"One for channel A, other is for channel B",
"true"
]
}
]
},
{
"ch": "In cruise, the primary coolant of IDG oil is",
"ansGr": [
{
"ans": [
"Fan air",
"false"
]
},
{
"ans": [
"Engine oil",
"false"
]
},
{
"ans": [
"Engine fuel",
"true"
]
}
]
},
{
"ch": "At idle on ground, the typical position for valves in IDG air/oil heat exchanger is",
"ansGr": [
{
"ans": [
"Closed",
"false"
]
},
{
"ans": [
"Opened",
"true"
]
},
{
"ans": [
"Bypassed",
"false"
]
}
]
},
{
"ch": "Backup generator oil is cooled by",
"ansGr": [
{
"ans": [
"Fuel/oil cooler",
"false"
]
},
{
"ans": [
"Engine air/oil heatexchanger",
"false"
]
},
{
"ans": [
"Backup air/oil heat exchanger",
"true"
]
}
]
},
{
"ch": "To cool backup generator oil, the backup generator use",
"ansGr": [
{
"ans": [
"Engine oil",
"false"
]
},
{
"ans": [
"Engine fuel",
"false"
]
},
{
"ans": [
"Fan air only",
"true"
]
}
]
},
{
"ch": "Where is the oil filter element located?",
"ansGr": [
{
"ans": [
"In the pressure circuit, after the lube pump.",
"true"
]
},
{
"ans": [
"In the scavenge circuit, after the scavenge pump.",
"false"
]
},
{
"ans": [
"In the scavenge circuit, inside the DMS air/oil separator.",
"false"
]
}
]
},
{
"ch": "The engine oil quantity is examined:",
"ansGr": [
{
"ans": [
"Between 5 and 60 minutes after engine shutdown.",
"false"
]
},
{
"ans": [
"Between 10 and 60 minutes after engine shutdown.",
"false"
]
},
{
"ans": [
"Between 15 and 120 minutes after engine shutdown.",
"true"
]
}
]
},
{
"ch": "Time is 3 hours after engine shutdown. To examine the engine oil quantity:",
"ansGr": [
{
"ans": [
"You must dry motor the engine for 2 minutes to return engine oil to the tank.",
"false"
]
},
{
"ans": [
"You must dry motor the engine until the oil pressure is stable.",
"true"
]
},
{
"ans": [
"You must dry motor the engine for 2 minutes following 3 minutes of engine operation at idle to return engine oil to the tank",
"false"
]
}
]
},
{
"ch": "For autostart control, which switch should you move first",
"ansGr": [
{
"ans": [
"Start/ignition switch to START",
"false"
]
},
{
"ans": [
"Fuel control switch to RUN",
"false"
]
},
{
"ans": [
"Which ever (of the aboves) you like first",
"true"
]
}
]
},
{
"ch": "Starter air valve is commanded closed and ignition is off when N2 reach",
"ansGr": [
{
"ans": [
"45%",
"true"
]
},
{
"ans": [
"50%",
"false"
]
},
{
"ans": [
"56%",
"false"
]
}
]
},
{
"ch": "Speed sensor installed on starter is used to",
"ansGr": [
{
"ans": [
"Monitor the position of starter air valve",
"false"
]
},
{
"ans": [
"Compare to N2 speed for fault detection during start",
"true"
]
},
{
"ans": [
"Monitor the bearing degradation of starter",
"false"
]
}
]
},
{
"ch": "FMU has 2 fuel off solenoids",
"ansGr": [
{
"ans": [
"One is ontrolled by EEC, other is controlled by engine fuel switch or engine fire handle switch",
"true"
]
},
{
"ans": [
"One controlled by EEC channel A, other is controlled by EEC channel B",
"false"
]
},
{
"ans": [
"One is primary, other is backup",
"false"
]
}
]
},
{
"ch": "The engine starting system uses:",
"ansGr": [
{
"ans": [
"Pneumatic power to turn the N2 shaft during an engine start.",
"true"
]
},
{
"ans": [
"Electrical power to turn the N2 shaft during an engine start.",
"false"
]
},
{
"ans": [
"Pneumatic or electrical power (pneumatic has priority) to turn the N2 shaft during an engine",
"false"
]
}
]
},
{
"ch": "Which signal does the EEC use to control the SAV position?",
"ansGr": [
{
"ans": [
"Signal from switches on the valve.",
"false"
]
},
{
"ans": [
"Signal from the starter speed sensor on the starter.",
"true"
]
},
{
"ans": [
"Signal from the pressure sensor downstream from the valve.",
"false"
]
}
]
},
{
"part": "TRENT",
"ch": "What is the function of the Engine Data Interface Unit (EDIU)?",
"ansGr": [
{
"ans": [
"Provides power to the EEC",
"false"
]
},
{
"ans": [
"Converts data between ARINC 429 and ARINC 629 formats",
"true"
]
},
{
"ans": [
"Supplies hydraulic signals to the FMU",
"false"
]
}
]
},
{
"ch": "How does the EEC send N1, N2, and N3 signals to the AIMS?",
"ansGr": [
{
"ans": [
"Through direct analog wiring",
"false"
]
},
{
"ans": [
"Using ARINC 429 format only",
"false"
]
},
{
"ans": [
"As digital signals over ARINC 629",
"true"
]
}
]
},
{
"ch": "What is the source of N3 speed signal to the AIMS system?",
"ansGr": [
{
"ans": [
"The OPU",
"false"
]
},
{
"ans": [
"The dedicated alternator",
"true"
]
},
{
"ans": [
"The FMU resolver",
"false"
]
}
]
},
{
"ch": "Which unit provides engine indication signals to the EICAS?",
"ansGr": [
{
"ans": [
"PCU",
"false"
]
},
{
"ans": [
"EDIU",
"false"
]
},
{
"ans": [
"AIMS",
"true"
]
}
]
},
{
"ch": "What type of data does the fuel flow transmitter send to the EEC?",
"ansGr": [
{
"ans": [
"ARINC 629 digital",
"false"
]
},
{
"ans": [
"Analog pulse signals",
"true"
]
},
{
"ans": [
"Optical data stream",
"false"
]
}
]
},
{
"ch": "What component calculates the EPR value for display?",
"ansGr": [
{
"ans": [
"AVM Signal Conditioner",
"false"
]
},
{
"ans": [
"AIMS",
"false"
]
},
{
"ans": [
"EEC",
"true"
]
}
]
},
{
"ch": "What happens when the EEC detects an N1 overspeed?",
"ansGr": [
{
"ans": [
"It triggers a fuel shutoff command",
"true"
]
},
{
"ans": [
"AIMS deactivates EICAS",
"false"
]
},
{
"ans": [
"Thrust reverser is deployed",
"false"
]
}
]
},
{
"ch": "Where is the analog N1 signal routed after the EEC?",
"ansGr": [
{
"ans": [
"Directly to the EICAS",
"false"
]
},
{
"ans": [
"To EDIU and AVM conditioner",
"true"
]
},
{
"ans": [
"To the ignition system",
"false"
]
}
]
},
{
"ch": "What type of interface is used between the EEC and AIMS?",
"ansGr": [
{
"ans": [
"ARINC 429",
"false"
]
},
{
"ans": [
"CAN bus",
"false"
]
},
{
"ans": [
"ARINC 629",
"true"
]
}
]
},
{
"ch": "What is the signal path of the filter bypass warning?",
"ansGr": [
{
"ans": [
"Fuel transmitter → EICAS",
"false"
]
},
{
"ans": [
"Fuel bypass switch → EEC → EDIU → AIMS",
"true"
]
},
{
"ans": [
"PCU → APU → CDU",
"false"
]
}
]
},
{
"ch": "What does the AVM system use to compute vibration levels?",
"ansGr": [
{
"ans": [
"Analog RPM",
"false"
]
},
{
"ans": [
"Voltage from RCC and engine speeds",
"true"
]
},
{
"ans": [
"Digital fuel data",
"false"
]
}
]
},
{
"ch": "What unit receives P25 and T25 for engine condition monitoring?",
"ansGr": [
{
"ans": [
"EICAS",
"false"
]
},
{
"ans": [
"EEC",
"false"
]
},
{
"ans": [
"AIMS",
"true"
]
}
]
},
{
"ch": "What signal is used by AIMS to display fuel used?",
"ansGr": [
{
"ans": [
"Pulse from FMV",
"false"
]
},
{
"ans": [
"Signal from EEC based on fuel flow transmitter",
"true"
]
},
{
"ans": [
"Data from the IDG",
"false"
]
}
]
},
{
"ch": "The EEC communicates with aircraft systems mainly through:",
"ansGr": [
{
"ans": [
"Fiber optics",
"false"
]
},
{
"ans": [
"ARINC 629 databus",
"true"
]
},
{
"ans": [
"Hydraulic interface modules",
"false"
]
}
]
},
{
"ch": "Which unit is responsible for thrust indication updates on the PDS?",
"ansGr": [
{
"ans": [
"EDIU",
"false"
]
},
{
"ans": [
"AVM",
"false"
]
},
{
"ans": [
"AIMS",
"true"
]
}
]
},
{
"ch": "Where are the EDIUs located?",
"ansGr": [
{
"ans": [
"Aft cargo bay",
"false"
]
},
{
"ans": [
"Engine nacelle",
"false"
]
},
{
"ans": [
"Main equipment center",
"true"
]
}
]
},
{
"ch": "What power source is used by the PCU to energize the EEC during ground start?",
"ansGr": [
{
"ans": [
"ELMS",
"true"
]
},
{
"ans": [
"EDIU backup bus",
"false"
]
},
{
"ans": [
"Dedicated alternator",
"false"
]
}
]
},
{
"ch": "What input allows the EEC to determine thrust rating in normal mode?",
"ansGr": [
{
"ans": [
"TLA, altitude, bleed status",
"true"
]
},
{
"ans": [
"CDU pages",
"false"
]
},
{
"ans": [
"PCU wiring resistance",
"false"
]
}
]
},
{
"ch": "The purpose of the ARINC 629 bus in the engine system is to:",
"ansGr": [
{
"ans": [
"Drive engine hydraulics",
"false"
]
},
{
"ans": [
"Transmit control and indication data",
"true"
]
},
{
"ans": [
"Cool electrical systems",
"false"
]
}
]
},
{
"ch": "What indication system relies on thermocouples routed to the EEC?",
"ansGr": [
{
"ans": [
"Vibration",
"false"
]
},
{
"ans": [
"EGT",
"true"
]
},
{
"ans": [
"N1",
"false"
]
}
]
},
{
"ch": "What does the EEC use to calculate N1 command in normal mode?",
"ansGr": [
{
"ans": [
"N3 RPM",
"false"
]
},
{
"ans": [
"Engine pressure ratio (EPR)",
"true"
]
},
{
"ans": [
"Ignition power",
"false"
]
}
]
},
{
"ch": "Where does the EEC receive altitude and airspeed information from?",
"ansGr": [
{
"ans": [
"Engine thermocouples",
"false"
]
},
{
"ans": [
"ADC via ARINC 629",
"true"
]
},
{
"ans": [
"EICAS directly",
"false"
]
}
]
},
{
"ch": "What happens if the ARINC 629 bus fails for the EEC?",
"ansGr": [
{
"ans": [
"Engine shuts down",
"false"
]
},
{
"ans": [
"Manual mode is triggered",
"false"
]
},
{
"ans": [
"Engine enters isolated alternate mode",
"true"
]
}
]
},
{
"ch": "What parameter change will be seen if T25 probe malfunctions?",
"ansGr": [
{
"ans": [
"N3 fluctuation",
"false"
]
},
{
"ans": [
"Erroneous EPR",
"true"
]
},
{
"ans": [
"EGT rise",
"false"
]
}
]
},
{
"ch": "The EEC is powered during normal operation by:",
"ansGr": [
{
"ans": [
"Aircraft AC bus",
"false"
]
},
{
"ans": [
"Engine-mounted permanent magnet alternator",
"true"
]
},
{
"ans": [
"IDG output",
"false"
]
}
]
},
{
"ch": "Where are the EGT thermocouples located?",
"ansGr": [
{
"ans": [
"Forward of N2 turbine",
"false"
]
},
{
"ans": [
"Aft of HP turbine",
"true"
]
},
{
"ans": [
"Just after combustor",
"false"
]
}
]
},
{
"ch": "A failed fuel flow transmitter will result in:",
"ansGr": [
{
"ans": [
"Engine surge",
"false"
]
},
{
"ans": [
"Loss of fuel quantity data",
"false"
]
},
{
"ans": [
"Missing fuel used on EICAS",
"true"
]
}
]
},
{
"ch": "What is the source of the ENG N2 display on the flight deck?",
"ansGr": [
{
"ans": [
"Fuel metering unit",
"false"
]
},
{
"ans": [
"EDIU processed sensor input",
"true"
]
},
{
"ans": [
"APU sensor",
"false"
]
}
]
},
{
"ch": "Which signal is filtered and conditioned by the AVM before reaching EICAS?",
"ansGr": [
{
"ans": [
"Engine oil pressure",
"false"
]
},
{
"ans": [
"Engine vibration",
"true"
]
},
{
"ans": [
"EGT",
"false"
]
}
]
},
{
"ch": "During ground start, EEC receives engine speed data from:",
"ansGr": [
{
"ans": [
"Dedicated alternator",
"true"
]
},
{
"ans": [
"Aircraft DC battery",
"false"
]
},
{
"ans": [
"External analog generator",
"false"
]
}
]
},
{
"ch": "How does the EEC control fan speed in alternate mode?",
"ansGr": [
{
"ans": [
"By controlling N3",
"false"
]
},
{
"ans": [
"By matching thrust lever angle to N1",
"true"
]
},
{
"ans": [
"By monitoring EGT",
"false"
]
}
]
},
{
"ch": "AIMS receives engine vibration information from:",
"ansGr": [
{
"ans": [
"Oil pressure sensor",
"false"
]
},
{
"ans": [
"AVM signal conditioner",
"true"
]
},
{
"ans": [
"Fuel return line sensor",
"false"
]
}
]
},
{
"ch": "What type of logic is used in the thrust reverser control module?",
"ansGr": [
{
"ans": [
"Pneumatic",
"false"
]
},
{
"ans": [
"Electro-mechanical",
"false"
]
},
{
"ans": [
"Solid-state electronic",
"true"
]
}
]
},
{
"ch": "What component prevents uncommanded thrust reverser deployment?",
"ansGr": [
{
"ans": [
"EICAS",
"false"
]
},
{
"ans": [
"EEC software interlock",
"true"
]
},
{
"ans": [
"IDG controller",
"false"
]
}
]
},
{
"ch": "What kind of feedback does the T/R position sensors provide?",
"ansGr": [
{
"ans": [
"Optical pulse",
"false"
]
},
{
"ans": [
"Discrete analog voltages",
"true"
]
},
{
"ans": [
"ARINC 429 digital signal",
"false"
]
}
]
},
{
"ch": "How is fuel quantity used calculated by AIMS?",
"ansGr": [
{
"ans": [
"From fuel level sensor",
"false"
]
},
{
"ans": [
"Based on integration of fuel flow data",
"true"
]
},
{
"ans": [
"By tank capacitance",
"false"
]
}
]
},
{
"ch": "What drives the EICAS alert for high EGT?",
"ansGr": [
{
"ans": [
"Direct EGT thermocouple output",
"false"
]
},
{
"ans": [
"EEC-provided comparison logic",
"true"
]
},
{
"ans": [
"EDIU relay",
"false"
]
}
]
},
{
"ch": "Which interface connects EEC to aircraft control systems?",
"ansGr": [
{
"ans": [
"Relay box",
"false"
]
},
{
"ans": [
"ARINC 629 databus",
"true"
]
},
{
"ans": [
"Fuel control manifold",
"false"
]
}
]
},
{
"ch": "What is the typical format for engine parameter data transmission from EEC?",
"ansGr": [
{
"ans": [
"Binary code",
"false"
]
},
{
"ans": [
"4–20 mA analog",
"false"
]
},
{
"ans": [
"ARINC 429 word stream",
"true"
]
}
]
},
{
"ch": "Where does the EEC receive ambient pressure and temperature data?",
"ansGr": [
{
"ans": [
"P25 and T25 probes",
"true"
]
},
{
"ans": [
"APU inlet sensors",
"false"
]
},
{
"ans": [
"Starter valve",
"false"
]
}
]
},
{
"ch": "What happens to EPR display when the EEC switches to alternate mode?",
"ansGr": [
{
"ans": [
"EPR remains unchanged",
"false"
]
},
{
"ans": [
"EPR is replaced by N1",
"true"
]
},
{
"ans": [
"EPR flashes in amber",
"false"
]
}
]
},
{
"ch": "Where is the backup source of thrust control in the event of dual EEC failure?",
"ansGr": [
{
"ans": [
"There is none; engine shuts down",
"false"
]
},
{
"ans": [
"Manual mode from control panel",
"false"
]
},
{
"ans": [
"Alternate channel in EEC logic",
"true"
]
}
]
},
{
"ch": "What initiates EGT overlimit alert logic?",
"ansGr": [
{
"ans": [
"Direct thermocouple signal",
"false"
]
},
{
"ans": [
"EEC comparison against preset limits",
"true"
]
},
{
"ans": [
"EDIU loop error",
"false"
]
}
]
},
{
"ch": "Which signal does the AVM conditioner require to calculate vibration?",
"ansGr": [
{
"ans": [
"DC Bus voltage",
"false"
]
},
{
"ans": [
"Rotor speed and vibration sensor input",
"true"
]
},
{
"ans": [
"Oil pressure fluctuation",
"false"
]
}
]
},
{
"ch": "What is the purpose of EEC power switching relay during engine start?",
"ansGr": [
{
"ans": [
"Activates igniter plugs",
"false"
]
},
{
"ans": [
"Transfers power from aircraft to alternator",
"true"
]
},
{
"ans": [
"Opens PRSOV",
"false"
]
}
]
},
{
"ch": "What does the EEC use to adjust engine thrust based on ambient conditions?",
"ansGr": [
{
"ans": [
"APU EGT sensor",
"false"
]
},
{
"ans": [
"P25 and T25 sensor data",
"true"
]
},
{
"ans": [
"Oil temperature",
"false"
]
}
]
},
{
"ch": "How is ignition feedback confirmed to the EEC?",
"ansGr": [
{
"ans": [
"Thermocouple resistance",
"false"
]
},
{
"ans": [
"Ignition arc monitor",
"false"
]
},
{
"ans": [
"No direct confirmation",
"true"
]
}
]
},
{
"ch": "Where are thrust reverser position sensors connected?",
"ansGr": [
{
"ans": [
"AIMS input module",
"false"
]
},
{
"ans": [
"EEC discrete input pins",
"true"
]
},
{
"ans": [
"Starter valve",
"false"
]
}
]
},
{
"ch": "What causes the “REV” indication on EICAS to display amber?",
"ansGr": [
{
"ans": [
"T/R deployed",
"false"
]
},
{
"ans": [
"T/R command issued but not fully deployed",
"true"
]
},
{
"ans": [
"T/R stowed",
"false"
]
}
]
},
{
"ch": "What component ensures the EEC receives valid N3 data?",
"ansGr": [
{
"ans": [
"Alternator output filter",
"false"
]
},
{
"ans": [
"N3 magnetic pickup",
"true"
]
},
{
"ans": [
"EICAS validation logic",
"false"
]
}
]
},
{
"ch": "How does the EDIU convert signals from the engine to the AIMS format?",
"ansGr": [
{
"ans": [
"Direct analog scaling",
"false"
]
},
{
"ans": [
"Through a signal conditioning module",
"false"
]
},
{
"ans": [
"Digital translation to ARINC 629",
"true"
]
}
]
},
{
"ch": "How are TLA (thrust lever angle) signals transmitted to the EEC?",
"ansGr": [
{
"ans": [
"Direct mechanical link",
"false"
]
},
{
"ans": [
"Electrical signal from resolver",
"true"
]
},
{
"ans": [
"AIMS digital interface",
"false"
]
}
]
},
{
"ch": "What logic determines the selection of ignition A or B?",
"ansGr": [
{
"ans": [
"Crew input",
"false"
]
},
{
"ans": [
"Software logic in EEC",
"true"
]
},
{
"ans": [
"Relay in AIMS",
"false"
]
}
]
},
{
"ch": "What input does the EEC need to calculate thrust rating?",
"ansGr": [
{
"ans": [
"Fuel flow",
"false"
]
},
{
"ans": [
"TLA, altitude, bleed config",
"true"
]
},
{
"ans": [
"N1 only",
"false"
]
}
]
},
{
"ch": "Which component provides N1 overspeed protection?",
"ansGr": [
{
"ans": [
"EICAS",
"false"
]
},
{
"ans": [
"AVM",
"false"
]
},
{
"ans": [
"EEC",
"true"
]
}
]
},
{
"ch": "What condition causes N2 signal loss to display an alert?",
"ansGr": [
{
"ans": [
"High fuel pressure",
"false"
]
},
{
"ans": [
"Missing sensor voltage",
"false"
]
},
{
"ans": [
"EEC detects invalid frequency",
"true"
]
}
]
},
{
"ch": "What happens when the EEC detects invalid T25 data?",
"ansGr": [
{
"ans": [
"Ignores the input and flags fault",
"true"
]
},
{
"ans": [
"Switches to standby thermocouple",
"false"
]
},
{
"ans": [
"Triggers engine shutdown",
"false"
]
}
]
},
{
"ch": "What controls the sequencing of data sent to AIMS from the EEC?",
"ansGr": [
{
"ans": [
"FMU",
"false"
]
},
{
"ans": [
"Internal timing logic in EEC",
"true"
]
},
{
"ans": [
"AVM signal conditioner",
"false"
]
}
]
},
{
"ch": "What component receives both engine control and indication signals?",
"ansGr": [
{
"ans": [
"AIMS",
"true"
]
},
{
"ans": [
"IDG",
"false"
]
},
{
"ans": [
"Starter valve",
"false"
]
}
]
},
{
"ch": "What is the data format between AIMS and EICAS displays?",
"ansGr": [
{
"ans": [
"Analog voltage",
"false"
]
},
{
"ans": [
"Fiber-optic",
"false"
]
},
{
"ans": [
"ARINC 629",
"true"
]
}
]
}
]