PC Oral Question Bank Rev 1 Flashcards
What is the wingspan of the 747?
744: 213 feet
748: 224.5 feet
With body gear steering, what is the minimum pavement width for a 180 degree turn for the 747?
744: 153 feet
748: 172 feet
What happens when you rotate the oxygen mask emergency/test selector to emergency?
Supplies 100% oxygen under positive pressure at all cabin altitudes, and protects against smoke and vapors
With the emergency lights switch armed, when do the emergency lights illuminate?
If DC power fails or is turned off
What is the electrical power source for the emergency lighting system? How long does it last?
Remote batteries
15 minutes
Where is the portable ELT located?
Upper deck on the lavatory exterior wall
What are the immediate action items on the QRC?
Cabin altitude, rapid depressurization
Engine 1,2,3,4 auto start, aborted engine start
Engine limit, or surge, or stall
IAS disagree, airspeed unreliable
Fire engine 1,2,3,4 engine severe damage or separation
Multiple engine flameout or stall
What is the maximum takeoff and landing tailwind component for the 747?
744: 15 knots
748: 15 knots
LCF: 10 knots
What is the maximum headwind component for auto land?
25 knots
What are the maximum and minimum glide-slope angles for ILS auto-land?
Max: 3.25 degrees
Min: 2.5 degrees
What VNAV limitation applies to level-off within 2,000 feet after changing the altimeter from QNE to QNH, or QNH to QNE?
Do not use VNAV for the level-off if the QNH is less than 29.70in/1006hPa
Without LAND2 or LAND3 annunciated, the autopilot must not remain engaged below what altitude?
100 feet RA
What is the turbulent air penetration speed for the 747?
744: 290-310 knots or 0.82-0.85 Mach, whichever is lower
748: 310 knots or 0.83 Mach
What is the minimum in-flight fuel temperature for the -8?
-48 degrees C
What is the maximum altitude for flap extension?
20,000 feet
Are operations allowed when the reported braking action is NIL?
No
Where can you find the maximum takeoff and landing weights for the aircraft you are operating?
OFP page 1
FCOM Vol 1 limitations
What is the difference in the BOW on the OFP and the Sable Load-sheet? Is there a difference between the Sable and OFP final calculated ZFW and TOGW?
BOW OFP: includes weight of all cockpit and cabin crew
BOW Sable: includes only two crew
What BTMS number on the gear synoptic display will cause an EICAS Brake Temp advisory message?
5 or more
The final upper deck/cockpit procedure requires the FO to do what with the smoke barrier door?
Ensure the door is closed and all three security locks are moved to the locked position
In the normal mode, what does the EEC use as the controlling parameter for GE engines? PW engines?
GE: N1
PW: EPR
What protection features are provided by the EEC in normal mode?
Thrust limiting
Maintains constant thrust
Over speed protection
What occurs with the auto throttle system when any EEC control is switched to alternate mode?
The auto throttles disconnect, but can be reconnected when all EECs have been switched to alternate mode
What EEC normal mode protection feature is not available in alternate mode?
Thrust limiting at max N1
When does the EEC select approach idle?
Nacelle anti ice on
Flaps in landing position
Continuous ignition switch on
Reverse thrust operation
What action should be taken prior to manual selection of the EEC alternate mode?
Decrease thrust lever position
What happens when you turn the continuous ignition switch on?
Selected igniters operate continuously
Commands approach idle minimum
What two engine indications are displayed full-time on the primary EICAS for a GE engine?
N1
EGT
What color does the EGT change to if the EGT start or takeoff limit is reached?
Red
If the airborne vibration monitoring system cannot determine the source of the vibration, it will display BB. What does this mean?
Broadband: the average vibration detected
What 3 items will the auto start system protect the engine from during an engine start that will also result in an ENG 1,2,3,4 Autostart EICAS message?
Hot start
Hung start
No EGT rise
How is the engine thrust reverser actuated on a GE engine?
Pneumatically
How is the engine thrust reverser actuated on a PW engine?
Hydraulically
How is the engine thrust reverser actuated on the GEnx engine?
Hydraulically
With an engine shutdown, what does X-BLD indicate when displayed next to the N2 indication?
Cross-bleed air is recommended for an in-flight start
When is ignition selected for all engines?
Trailing edge flaps out of the up position
Continuous ignition switch selected on
How many igniters are selected for ground start, and how many for an in-flight start?
Ground: one
In-flight: two
What are the PW engine warmup requirements for oil temperature before takeoff?
Above the lower amber band
GEnx engine EECs command ice crystal anti icing when ice crystal icing conditions are detected at altitudes above…
30,000 feet
GEnx engine ice crystal anti icing cycles last for how long when ice crystal conditions are detected? Or until the aircraft descends below what altitude?
15 minutes
28,000 feet
When does the GEnx engine select minimum or approach idle?
Engine anti ice on Landing gear down Flap 20 selected Flap in landing position Thrust reverser operation
Under what conditions on the ground will the GEnx EEC shutdown an engine to provide protection against thrust asymmetry due to a control malfunction?
Thrust lever at/near idle
Engine above commanded N1 speed and not decelerating normally
During engine start when will the GEnx engine provide an additional 40 seconds of motoring time at 20% N2?
Engine has been shutdown between 30-360 minutes
EGT greater than 30 degrees C
During engine start the GEnx engine EEC will attempt corrective action for which start malfunctions?
Hot start
Hung start
No EGT rise
Compressor stall
GEnx engine in-flight start attempts will increase the EGT limit by 25 degrees C after 4 start attempts, and will repeat this action on subsequent reattempts until?
Engine start achieved or the EGT limit is reached
When does the EICAS memo message APU RUNNING display?
APU selector on
APU N1 RPM above 95% N1
Is electrical power available from the APU in-flight?
No
Can the APU be operated in-flight?
Yes - when left running for takeoff it can be operated up to 20,000 feet
After the APU selector is rotated to off, how long should you wait before turning the battery switch off, and why?
2 minutes
Enables a complete shutdown sequence with fire detection capability
What are the main AC electric power sources on the LCF?
4 IDGs
2 external power sources
What is the function of the standby power switch in the auto position?
Allows the main and APU standby buses to be powered from any available source
What does the AVAIL light indicate on the external and APU power switches?
The related power source is plugged in and available
The power quality is acceptable
When is the main deck cargo handling bus powered?
When AVAIL is illuminated on the APU 2 or EXT 2 switches
What electric power source provides power for lower lobe cargo handling, fueling, and the AUX 4 hydraulic pump?
EXT 1 or APU GEN 1 AVAIL or ON; powering the ground handling bus
What are some items powered by the utility buses?
5 fuel pumps
Galley equipment
What happens when you push a generator drive disconnect switch?
Disconnects the IDG from the engine when above idle
Opens related generator control breaker
What condition would automatically disconnect an IDG?
Excessively high drive oil temperature
What does a bus isolation light indicate when illuminated?
The bus tie breaker is open
The AC bus is isolated from the synchronous bus
How do you reconnect an IDG that has been disconnected?
Call maintenance
How is the electrical system configured during an automatic ILS approach (auto-land)?
AC and DC buses 1,2,3 are isolated from the synchronous bus
AC bus 4 powers the synchronous bus
What are the main AC electrical power sources?
4 IDGs
2 APU power sources
2 external power sources
What does a hydraulic system fault light indicate when illuminated?
Low pressure
Low reservoir quantity
Excessive temperature
What does a hydraulic demand pump low press light indicate when illuminated?
Demand pump selector OFF or AUX
Demand pump is operating and output pressure is low
When will the hydraulic demand pumps be commanded to operate if the selector is in the auto position?
Respective engine pump output pressure is low
Respective fuel control switch is in cutoff
—-Pumps 1/4—-
When trailing edge flaps are in transit on the ground
Continuously when flaps extended past 1 in-flight
With GE engines, which hydraulic demand pumps are air driven, and which are electrically driven?
1/4 - air
2/3 - electric
For N445/446MC, which hydraulic demand pumps are air driven, and which are electrically driven?
All hydraulic demand pumps are pneumatically driven
What does a magenta RF mean in regard to the hydraulic system?
The respective reservoir requires refill
What is the purpose of the hydraulic auxiliary pump?
It is used for ground handing operations
When is the engine driven hydraulic pump pressurized?
When the engine is running
When the engine pump switch is on
What does a hydraulic reservoir quantity indication of 0.95 mean?
Percentage of normal service level (1.00)
What degraded or inoperative systems can you expect from a loss of hydraulic system 1?
Refer to the QRH…however, the following is INOP:
Center autopilot
Left outboard aileron
Nose and body gear steering
Nose and body gear normal extension and retraction
System 1 alternate brake source
Inboard trailing edge flap hydraulic operation
—-
Trailing edge flaps move in secondary mode
What degraded or inoperative systems can you expect from a loss of hydraulic system 4?
Refer to the QRH…however, the following is INOP:
Right outboard aileron
Wing gear normal extension and retraction
System 4 normal brake source
Two inboard spoiler panels on each wing
Outboard trailing edge flap hydraulic operation
—-
Trailing edge flaps move in secondary mode
How many engine fire extinguishers are provided?
4; 2 on each wing
Pressing the FWD cargo fire arm switch causes what actions?
Shuts down two packs
Arms lower cargo compartment fire extinguishers
Configures equipment cooling to override mode
Turns off all airflow/heat to lower cargo compartments
Closes master trim air valve
How many fire extinguisher bottles are provided for the forward and aft lower cargo compartments?
4; 2 bottles discharge immediately, and the other 2 discharge after a brief delay or upon touchdown
How many APU fire bottles are provided?
1
What action discharges the APU fire extinguisher bottle?
Rotating the APU fire handle
Can you shutdown the APU from outside the airplane?
Yes; via the APU panel located in the right body gear well
Is smoke detection available for the crew rest areas?
Yes; smoke detectors are installed
What happens when you push the cargo fire depressurization switch with the main deck fire switch armed?
Enables main deck fire suppression
Turns off two packs
Configures equipment cooling to closed loop
Turns off all airflow to the main deck
Turns off all airflow and heat to the lower cargo compartments
Closes master trim air valve
What unlocks an engine fire switch?
Fire warning
A fuel control switch is in cutoff
Pushing the fire override switch
Is the engine fire/overheat detection system a single or dual loop system?
Dual loop
What does arming the FWD cargo fire switch do on a passenger aircraft?
Arms the cargo fire extinguisher
Configures equipment cooling to override mode
Turns off airflow and heat to the forward cargo compartment
Turns off pack 3
Turns off nitrogen generation system
How many fire extinguisher bottles are provided for the FWD and AFT cargo compartments on the 747-8?
6
How is center wing tank fuel scavenged for the 744/8?
4 jet pumps that feed into main tanks 2 and 3 when main tank quantity decreases to 27,200 kgs
Which cross feed valves are controlled by fuel system management logic when setting takeoff flaps?
Cross feed valves 2 and 3
During the before start procedure, at what center wing tank quantity are you required to select the center wing pumps on? For the LCF?
744: 7,700 kgs or more
LCF: 17,000 lbs or more
Main tank 2 and 3 override/jettison pumps can operate to a standpipe level of how much of fuel remaining in each tank for the 74-4/8/LCF?
744: 3,200 kgs
748: 3,450 kgs
LCF: 7,000 lbs
Describe how the fuel quantity indication changes upon completion of fuel jettison.
Fuel to remain indication changes from magenta to white
Fuel to remain quantity flashes for 5 seconds
How is center wing tank fuel scavenged for the LCF?
An electric pump feeds main tank 2 when:
Center wing tank override/jettison pump has low pressure
Fuel quantity in main tank 2 or 3 is below 40,200 lbs
What happens when you rotate the fuel jettison switch to A or B?
Arms the jettison selector
Displays preselected fuel to remain on EICAS
What is the impact of an excessive fuel imbalance?
Adversely affects CG
Increased aerodynamic drag
Decreased fuel economy
When do the fuel system management cards open the reserve transfer valves on the 744/8/LCF?
744: main tank 2 or 3 quantity around 18,200 kgs
748: main tank 1 or 4 quantity around 6,100 kgs
LCF: main tank 2 or 3 quantity around 40,200 lbs
In which tank is fuel temperature measured?
Main tank 1
How would you handle an excessive fuel imbalance situation?
Refer to the QRH…or:
Open/close cross feed pumps
Turn on/off fuel pump switches
Which fuel tanks do reserve tanks 1 and 4 transfer to on the 747-8?
Main tanks 1 and 4
On the 747-8, at what fuel quantity will the fuel jettison system terminate operations with the selector in the maximum landing weight position?
Maximum landing weight plus 3,000 kgs
During fuel jettison on the LCF, transfer valves open when fuel quantity in main tanks 2 and 3 decrease to?
20,000 lbs
What happens when nacelle anti-ice is selected on?
Nacelle anti-ice valve opens
Engine pressure relief valve opens when the nacelle anti-ice valve is open
Selected engine igniters operate continuously
What does the EICAS message BLD LOW TEMP indicate on the 747-8?
Engine bleed air too low for sufficient wing anti-icing
Does the nacelle anti-ice AUTO position work on the ground?
No
How many ice detector probes are there, and where are they located?
2; located on the forward fuselage
How many angle of attack probes are there, and when are they heated?
2; each electrically heated when any engine is running
How many pitot-static probes are there, and when are they heated?
4; each electrically heated when any engine is running
With the window heat on, anti-icing/fogging protection is afforded to which cockpit windows?
Forward left and right windshields only
What displays on EICAS when nacelle or wing anti-icing valves are open (747-400)?
NAI; for nacelle anti-ice
WAI; for wing anti-ice