A320 Theory
On the RMP, the ON/OFF switch controls:
The power supply to the RMP
How many igniters are used during an automatic engine start?
One igniter (A or B) is used on the first automatic start attempt on the ground. In flight both igniters are used for all starts attempts
What are the two main functions of the FMGC?
Flight management and flight guidance
The MAINT BUS switch is used to supply only ground services. Where is it located?
On the ceiling in the forward galley just outside the flight deck
What is the wingspan of the A320?
34.1 m
Above what cabin altitude will the cabin oxygen masks be deployed automatically?
14,000 ft
What happens if the EXPED button is pushed when the FCU selected altitude is above the current altitude?
THR CLB (if A/THR active) and EXP CLB engage The speed becomes managed with a target of green dot, altitude constraints are disregarded.
With the ATT HDG switch set to CAPT 3, and AIR DATA switch set to NORM: which computer(s) will be providing air, attitude and heading data to the Captain's PFD?
ADIRU 1 will be providing air data, and ADIRU 3 attitude and heading data
The cargo doors are powered by:
The yellow hydraulic system
If the FO fully deflects the hand wheel while manoeuvring on the ground, what angle will the nose wheel be at?
75°
Which probes are not heated on the ground?
TAT probes
What impact does selecting engine and or wing anti-ice have on the engines?
The N1 or EPR limit is automatically reduced, and the idle N1 or EPR is automatically increased
What is the max continuous thrust EGT limit for the CFM engine?
915°C
What are the different types of flight guidance?
Managed and selected
What protections are available in normal law?
Load factor limitation, pitch attitude, bank angle, angle of attack, and high speed
How is a temporary flight plan indicated on the ND?
A dashed yellow line
Select the correct statement about the FIRE detection and fault logic for the ENG and APU (select the most complete answer)
A fire warning is triggered if a break occurs in both fire detection loops within 5 sec of each other (flame effect)
What information is always available on the permanent data section of the SD?
TAT (Total Air Temperature)
What is the meaning of a AMBER light in a flight deck pushbutton?
A failure that the flight crew should be aware of, but does not call for immediate action
Where can the battery voltage be checked?
On the ELEC overhead panel and ECAM ELEC page
What is the maximum altitude that the APU can be used for electrical power?
Maximum certified altitude
When is pack flow automatically increased to HIGH, regardless of the position of the PACK FLOW control knob?
When using APU bleed or during single pack operation
What is the meaning of a BLUE light in a flight deck pushbutton?
Normal operation of a system used temporarily
How is the outflow valve actuated?
One of three electric motors Two automatic, one manual
After a takeoff in CONFIG 1+F, what would happen if FLAP 0 is not selected as the aircraft accelerates?
At 210 kt the flaps will automatically retract changing the config from 1+F to 1. This raises the VFE from 215 to 230 kt
Which unit is used as a short-term interface between the flight crew and FMGC?
FCU
What is the function of the hydraulic priority valves?
They cut off hydraulic power to heavy load users if the hydraulic pressure in a system gets low
What will trigger the CAB PR LDG ELEV FAULT (amber) alert?
The active CPC is no longer receiving the landing field elevation automatically from the FMGS. The flight crew must adjust the target landing elevation using the LDG ELEV rotary knob on the CABIN PRESS panel
What does an amber half box around the FOB on the EWD indicate?
Not all of the displayed fuel quantity is usable
When does the generator load turn amber on the ELEC SD page?
The engine generator load is above 100%
When does the green AVAIL light illuminate on the APU start push button?
N > 99.5%
When the fuel tanks are completely filled, an allowance of up to_____total capacity is provided within the system to allow for expansion due to temperature rise
0.02
What is the normal voltage and frequency for the AC and DC systems on the A320?
3 phase AC 115/200v 400Hz, and 28v DC
How can you check that engine anti-ice has been selected on?
ON (BLUE) light on one or more ENG anti-ice push buttons, ENG A. ICE memo displayed in GREEN on the EWD
ALPHA-FLOOR is available from:
Liftoff until the aircraft reaches 100 ft RA on approach
Which statement is correct regarding the STROBE switch in AUTO?
The strobe lights come on automatically when the main gear struts are not compressed
When the ND is set to the PLAN mode, how is the map orientated?
To true north
Which ACP transmission key will illuminate if the cabin attendants are calling the cockpit?
CAB
Select the correct statement about the AGENT pushbuttons on the FIRE panel
When the associated FIRE PB (ENG or APU) is released SQUIB illuminates in white on the corresponding agent pushbutton(s)
On the PFD, what causes the indicated barometric altitude to change colour (digital value)?
Below MDA (or the MDH) entered in the MCDU Perf Page: The current altitude digits are steady amber
Which statement about the FAC is true? ****
When the AP is engaged, the rudder trim knob is inoperative, and the master FMGC sends rudder trim orders to the FACs. In addition the FAC flight envelope function performs the alpha protection in normal law
What does REV in GREEN in the N1/EPR gauge on the E/WD mean?
The thrust reverser system is fully deployed
What is the meaning of a RED light in a flight deck pushbutton?
A failure requiring immediate action
The thrust levers are moved to the TOGA detent during takeoff. Which configuration would you expect the avionics ventilation system to select if the OAT is 40°C?
Closed
Regarding an autoland approach, with both autopilots engaged, which FMGC is master?
Both
What impact does a CAB PR SYS 1+2 FAULT alert have?
Both cabin pressure controllers have failed. The flight crew will set the MODE SEL push button to MAN and adjust the position of the outflow valve as required
What does a green arrow on the bottom of the ECAM status page indicate?
It is displayed if the data on the status page has overflowed off the screen
The aircraft is fitted with emergency evacuation slides at:
The four entry doors and overwing exits
Which computer generates amber cautions?
FWC
What is the normal operating pressure of the hydraulic systems?
3000PSI including when powered by the RAT
Typically when will direct law be active?
Direct law is the flare mode for alternate law. Alternate reconfigures to direct law when the landing gear is extended
What colour will the secondary flight plan be when it is displayed on the ND?
White
When is auto-start abort and automatic dry cranking available?
During an automatic start on the ground only
What is the primary method of communication for datalink messages controlled via the ATSU?
The datalink system primarily uses VHF3
Which of the following statements about the use of APU bleed air is correct?
The use of APU bleed air for wing anti-ice is not permitted
Where can you view the potable and waste water tank quantities?
On the Forward Attendant Panel (FAP)
Which of the following statements best describes the operation of the fuel transfer valve(s)?
When a low fuel level is sensed in an inner tank (< 750 kg), one transfer valve will open in each wing
What happens to the wing and engine anti-ice valves when electrical power fails?
Wing anti-ice valves close, engine anti-ice valves open
The cross feed valve (X FEED) is :
Normally closed
Where is the flap/slat position displayed?
On the the E/WD
All flight control surfaces are:
Electrically-controlled and hydraulically-actuated. The THS and rudder can also be mechanically-controlled
When will the approach phase activate?
Automatically when overflying the DECEL pseudo waypoint with NAV, LOC* or LOC engaged. It can also be manually activated by selecting ACTIVATE APPR PHASE on the PERF page
When is T.O. INHIBIT displayed on the EW/D?
First engine to takeoff power to 1,500 ft (phases 3, 4 and 5)
After engine start, which MCDU page should be used to modify ZFW and ZFWCG?
Fuel Prediction page (FUEL PRED)
During an automatic start sequence on the ground when does the ignition start and stop?
Ignition starts at an N2 of 16%, and stops when N2 is more than 50%
What happens when the landing gear is selected down on approach?
The WHEEL page appears on the LOWER ECAM DU
Which C/Bs have red caps on them to prevent them from being reset?
WTB's
Which LGCIU normally controls the retraction cycle?
One LGCIU controls one complete gear cycle, then switches over automatically to the other LGCIU at the completion of the retraction cycle. It also switches over in the case of failure
If a system page push button fails on the ECAM control panel, can the corresponding system page still be viewed?
Yes, the ALL button allows the flight crew to select the desired SD page. This provides redundancy in the case of an ECAM control panel failure
What is the cockpit handset typically used for?
PA announcements to the cabin only
What is the significance of the green coloured circuit breakers?
Green collared circuit breakers are monitored by the ECAM
If an emergency access procedure has been initiated by a cabin crew member, the buzzer in the cockpit will sound for:
Continuously
How many shut-off valves are there to isolate the toilets?
One per toilet
After an ND failure, which of the following statements is correct?
The ND can be manually transferred to the PFD
Regarding ALPHA FLOOR, which of the following statements is true?
It will engage even if the A/THR is switched off
When will the PTU pushbutton FAULT (amber) light illuminate?
When there is an overheat, low air pressure or low fluid level in either green or yellow reservoirs
How can armed FMA modes be identified on the PFD?
Armed FMA modes are displayed in blue (selected) or magenta (managed)
Which hydraulic systems have fire shutoff valves?
Green and yellow
On the ground, which configuration would you expect the avionics ventilation system to select if the OAT is 3°C on an overcast day?
Closed
What is the runway slope limitation for the A320?
+ 2%
What is the maximum tyre speed?
195 kts
What is the minimum fuel quantity for takeoff?
1,500 kg
Which of the following statements best describe a level 3 ECAM alert?
A flashing red master warning light, a red warning message on the E/WD, automatic call of the relevant system page, and a CRC, specific sound or synthetic voice
What is the maximum speed at which the landing gear may be extended (VLO extension)?
250 kts
What is the maximum speed (VFE) with CONF FULL for the A320?
177 kts
What is the maximum speed at which the landing gear may be retracted (VLO retraction)?
220 kts
What is the maximum speed (VFE) with CONF 1+F for the A320?
215 kts
What are the minimum and maximum cabin differential pressure limits?
+9 to -1 PSI
Maximum reverse thrust should not be used below what airspeed?
70 kts
What is the maximum operating speed for the windshield wipers?
230 kts
What is the cabin pressure safety relief valve setting?
8.6 PSI
What is the maximum demonstrated crosswind for the A320?
38 kt (gusts included)
What is the maximum operating altitude with slats and/or flaps extended?
20,000 ft
How long can you remain in TOGA thrust?
10 min during single engine operations
What happens if you take off without V2 being entered on the PERF page?
If V2 is not inserted, the speed reference system SRS will not engage for takeoff
After a cockpit oxygen mask has been used, how can the mask microphone be cut-off and boom microphone be re-activated?
Close the left hand door of the mask stowage box, and push the RESET/TEST slide. The OXY ON flag will disappear
Below what height do the FWC's generate height announcements?
2,500 ft
The aircraft is on the ground with external power plugged into the aircraft, and the APU running. How can the APU generator be connected to the electrical system?
By pushing the EXT PWR pb when the blue ON light is illuminated
The FAULT (amber) light is illuminated in the ENG 1 pump pushbutton, when will this light extinguish?
When the pushbutton is selected OFF for all cases excluding reservoir overheat. The FAULT light will remain on as long as the overheat lasts
What is the starter limitation for the APU?
A 60 min cooling period is required following three consecutive start attempts