ORAL PREP Flashcards
The 2 APU MODES are ?
ATTENDED: One engine starting or operating UNATTENDED.: Engines shutdown on the ground.
PWR source priority when starting engines ?
1.Respective IDG 2. APU. 3.Opposite IDG
The ADIRU (Air Data Inertial Ref. Unit) provides what ?
1.Primary flight data ( AOA TAT,AOA), 2. IRU Data 3. Air Data ( Pitot, Static )
What are Air Data Modules and what do they do ?
ADMs are remote Pitot/Static sensors for the air data functions of the ADIRU / SAARU.
What are the AIR DATA inputs to the ADIRU and SAARU(Secondary Attitude Air Data Reference Unit) ?
- Air Data Modules 2.Two AOA Vanes 3.TAT Probe
The FMC NAV update priority is ?
1.GPS 2. Nav Radios 3. IRU
The APU is started on GRND/FLT by… ?
- APU pwrd Elect Start Motor (G/Inflt)
2. Air Turb Start (Eng.Bleed Air In-flight / Ground Air Cart.)
The MAIN BATTERY powers which 3 APU start and fire protection functions ?
1.APU INLET DOOR 2. FUEL VALVE 3.FIRE DETECTION SYSTEM
How is APU fuel supplied on AC and DC power.
(AC) LF PUMP
DC) FUEL PUMP ( AC UNPOWERED
The APU START SEQUENCE is ?
Inlet Door-OPEN > Stater Engaged > ON SPEED > Fuel/Ign > 50% RPM > Start Disngd/Ign OFF
Which starter has priority , Air Turbine Starter or APU Start Motor ?
Air Turbine Starter
Why are PMGs the primary power source for PSAs(Power Supply Assemblies) instead of IDGs?
2 PMGs attached to each engines’s N2 shaft driven Backup Gen. supplies uninterruptible power to PSAs.
Can SAARU be SELECTED ?
Pushing ATT/AIRDAT will display ALTN
If both FMCs fail the CDUs will do what with the flight plan?
CDUs will retain FLIGHT PLAN :
Do the CDUs have PERFORMANCE and NAVIGATION databases ?
NO. CDUs have no PERF or NAV database
With both FMCs lost how are WYPTS entered into the CDU?
(1)WYPTS entered by LAT/LONG ONLY. (2).Referncd by LAT /LONG and/or ID if copied before FMC failure.
How is fire on the MAIN DECK suppressed ?
The DEPR/DISCH SWITCH depressurizes AC to a 23K feet CABIN ALT at 25K feet
One and Two pushes of TOGA switch commands FMA annunciation of .. ?
Push 1 : THR TO/GA TO/GA 2000’/MIN
Push 2: THR TO/GA TO/GA Full Power
When is TO/GA ARMED IN FLIGHT ?
Flaps out of UP or G/S Captured
No annunciation for TOGA Armed.
How many generations are on the airplane?
10 :
1 APU + 1 RAT + 2 IDGs + 2 Backup Generators + 4 PMGs
What are the PACK MODES ?
- NORMAL
2. STANDBY COOLING
If the PACK MALFUNCTIONS how is pressurization maintained?
2 Packs STBY : 1 pack INOP / 1 pack STBY=Continuous to maint. cabin press. regardless of ALT/OAT
Cabins maybe warmer due to lower cool.capacity
When OVERHEAT or other significant pack faults are detected the pack(s) will do what?
Pack shuts down automatically
Pressing the AIR COND RESET switch may restore ops.
What is the function of the landing gear lever lock and how is it overridden?
On ground auto lever lock holds gr handle DN.Pushing LOCK OVERRIDE switch releases lock.Lever lock automatically released in flight.
GEAR EXTENSION SPEED
270KTS/0.82M
Is there a backup for the EFIS CONTROL/ DISPLAY SELECT PANEL ?
Yes. In the CDU.
Which flight controls are fly by wire ?
All
What flight control function in the DIRECT MODE?
ALL:Rud /Yaw deflection more sensitive at certain speeds.
PFCs DISCONNECTED FROM FLIGHT CONTROL SYSTEM.
How does the FLY BY WIRE system function with the AUTOPILOT DISENGAGED.
1.Col. inputs via (Analog) flt contl. pos. transducrs >4 ACE(Digital Format) >3 PFCS (Enhanced Digital) > 4ACE (Analog) > PCU
How does the FLY BY WIRE SYSTEM function with the AUTOPILOT ENGAGED?
AFDS Digital Cmds»3 PFCs Enhanced Digtal Data»_space; 4 ACEs Analog Data»PCU
How do the ACES and PCUs interact?
Hyd actuated PCUs feedback sensors send pos data to ACE which stops PCU when flight controls reach commanded position.
FLIGHT CONTROL hyd. operational protection is achieved how?
No single ACE controls more than one actuator on a control surface.
What protections are lost in the SECONDARY FLAP MODE?
Flap Load Relief
What protections are lost in the ALTERNATE FLAP MODE?
- Flap/Slat Motion Uncmd.
2 .Flap/Slat Asymmetry Detection - Flap/Slat Load Relief
4 .Auto Slats
AUTO SLATS OPERATE operate in which flap MODE?
PRIMARY AND SECONDARY
What DIGITAL DATA does the PFC retain ?
1.Inertial Data 2.Thrust setting 3.Air Data 4.Flap/Slat Position 5.RA
What powers the Ground Service Bus
R Right Main Bus
P Primary External Power
G Generator APU
What powers the Utility Buses
L/R Main Buses powers the L/R Utility Buses
What powers the Transfer Buses
L/R MAIN Buses power the L/R Transfer Buses
What powers the L/R TRANSFER buses if the L/ R MAIN buses fail.
L/R BACKUP GENERATOR
Which bus powers the STANDBY bus.
The L TRANSFER bus
How many back up generators can be online at once
One
Can one back up generator power both TRANSFER buses
Yes
With normal brakes lost are AUTO BRAKES available?
No
With NORMAL brakes is anti-skid available?
ALT brake sys. provides antiskid protect to tandem FWD/MID axle wheels prs. Aft axle wheels remain individually controlled.
What does the GROUND SERVICE bus power ?
MAIN and APU BATTERY chargers
What is the GROUND SERVICE bus’s normal and alt. power source ?
NORMAL: Right MAIN bus
ALTERNATE: APU GEN Primary External Power
FLASHING RED on PFD and AURAL warnings are ?
ENG FAIL( Inhibtd <65kts)-WINDSHEAR-PULL UP-TERR
What is the minimum clearance from an object before initiating taxi.
15 Feet
Why is the 15 feet required
Rear two wheels turn in opposite direction of turn so back of airplane and wing tip move opposite to turn briefly.
The EICAS advisory and BRAKE SOURCE light indicates what.?
Both R/C and RESERVE hydraulic systems are LOW
When does TAC activate ?
TAC activates when N1 varies by more than 10%
How many volt/ frequency converters are used by the BACKUP GENERATORS
One
Is Auto Apprch Freq. Radio tuning available when ALT NAV is selected?
NO.ONLY Man.tuning( L) CDU of VOR,DME,ADF,L/C ILS (R)VOR,DME,ADF,R ILS
Pushing the AIR DATA/ATT switch does what?
- AIR DATA(C) SAARU Single Channel.
- AIR DATA(FO)ADIRU Single Channel +(PFD/ND)
- ATTITUDE(C/FO) SAARU
How do you reset comms after using the O2 Mask.
Reset switch on panel and ensure the white flag in the left door is not visible as you close the door.
Who is PF and PM on a CAT II/ CAT III
Capt. is always PF and FO is always PM
The max speed to exit the runway is ?
30 Kts
The GROUND HANDLING bus is powered by.?
On the ground only by the APU GEN or the PRIMARY EXTERNAL POWER
What does the GROUND HANDLING bus power ?
Cargo Handling, Fueling/Defueling Ops,Ground operations equipment
What pages are available in ALT Navigation
ALT/NAV PAGES : LEGS, PROGRESS, RADIO
Can ALT NAVIGATION be manually selected?
Yes.(NAV switch CDU visible)CDU generates the ND MAP. Normally LEFT ND map- Left CDU, RIGHT ND map-right CDU
How many display generators are in the system ?
4
What action is taken if both PFD’s go blank?
DSPL CTRL to ALTN ( An alternate display processing channel is selected to replace the current display processing channel.
What would prompt you to engage the DSPL CTRL switch to ALTN?
Undetected display source failures, missing/faulty disply info or intermittent disp blanking, may not result in automatic switching