NK Study Guide 2025 – Updated June 9, 2025 | Comprehensive Notes
& Practice Material
What happens when a pilot presses and holds the MECH pb on the CALLS panel? (Period 1) -
correct answers • It illuminates a blue light on the EXT PWR PANEL and sounds an external
horn.
How should a pilot call the forward flight attendant? (Period 1) - correct answers • Press the
FWD button on the Calls Panel
When would a pilot push the EMER pushbutton on the CALLS panel? (Period 1) - correct
answers • When there is an emergency and the Pilot would like to speak with Flight Attendant
A
What happens when a pilot pushes the CREW SUPPLY PUSHBUTTON? (Period 2) - correct
answers Valve opens to supply low-pressure oxygen to the masks.
How does the passenger fixed oxygen system work and how long does it last?(Period 2) -
correct answers Chemical oxygen generators last for approximately 15 minutes
What does the illumination of the SYS ON light mean? Does this mean that all the masks have
deployed? (Period 2) - correct answers The signal has been sent to release the oxygen mask
doors, but some masks may have to be deployed manually.
What causes automatic deployment of the masks?(Period 2) - correct answers Cabin altitude
reaching approximately 14,000 feet
How is the crew oxygen mask microphone deactivated when the mask is stowed? (Period 2) -
correct answers The RESET control slide will accomplish this - it does not happen automatically.
What indication would a pilot have of a crew oxygen cylinder thermal discharge?(Period 2) -
correct answers The green disk on the lower left side of the forward fuselage would be missing.
Could the passenger fixed oxygen mask provide oxygen for anything other than
depressurization?(Period 2) - correct answers No, unless there is a written FCOM or QRH
procedure for its use
How can a flight crew determine the flight crew oxygen pressure required for the flight?
(Period 2) - correct answers • FCOM - Limitations - Oxygen - Minimum Flight Crew Oxygen
Pressure
What do the minimum oxygen bottle pressure quantities guarantee? (Period 2) - correct
answers • Preflight checks
,• The use of oxygen, when only one flight crewmember is in the cockpit
• Unusable quantity (to ensure regulator operation with minimum pressure) - Normal system
leakage
• The most demanding case among the following:
◦ Protection after loss of cabin pressure, with mask regulator on NORMAL (diluted oxygen):
▪ During emergency descent for all flight crewmembers and observers for 15 minutes
▪ During cruise at FL100 for two flight crewmembers for 105 minutes.
◦ Protection against smoke with 100% oxygen for all flight crewmembers and observers during
15 minutes at 8,000 ft cabin altitude.
On the ground, if there is an amber half frame around the CKPT OXY PSI box, where would you
look to see if you have enough oxygen for the flight? (Period 2) - correct answers • FCOM -
Limitations - Oxygen
Why is the GND CTL pushbutton selected to ON during preflight? (Period 1) - correct answers •
To record preflight activities in the cockpit
If the GND CTL pushbutton was not selected ON, how would the system work in automatic
mode? (Period 1) - correct answers • On the ground during the first 5 minutes after the aircraft
electrical network is energized
• On the ground after the first engine start
• In flight (whether the engines are running or not)
On the ground, it is stopped automatically 5 minutes after the last engine shutdown provided
the CVR jack is not used
What allows the cabin PAs to be recorded? (Period 1) - correct answers ACP 3 PA volume knob
out and set at or above the medium range
What does pressing the SYS pushbutton do? (Period 1) - correct answers All basic GPWS alerts
(mode 1 to 5) are inhibited
What does an amber FAULT light in the SYS pushbutton indicate on the GPWS panel? ((Period
1) - correct answers any failure of GPWS mode 1 through 5
What effect, if any, does an amber FAULT light in the SYS pushbutton have on the TERR mode?
(Period 1) - correct answers • No effect at all
Describe a situation when a pilot might press LDG FLAP 3. (Period 1) - correct answers • When
directed to by the ECAM or procedure.
,• When intending to land using flaps 3
• In this case, LDG MEMO displays FLAPS CONF 3 instead of CONF FULL
Describe a situation when a pilot might press the FLAP MODE pushbutton. (Period 1) - correct
answers • When directed by the ECAM or procedure to avoid nuisance warning in case of
landing with flaps
setting reduced.
What effect, if any, does the failure of TERR mode have on basic GPWS? (Period 1) - correct
answers No effect whatsoever
According to our limitations, in what conditions should predictive GPWS be inhibited? (Period
1) - correct answers • The predictive GPWS functions should be inhibited (TERR pushbutton to
OFF, on the GPWS panel)
when the aircraft position is less than 15 NM from the airfield:
◦ For operations from/to runways not incorporated in the predictive GPWS database.
◦ For specific approach or departure procedures, which have previously been identified by the
operator as potentially causing expected or spurious terrain alerts.
Note:
The decision to inhibit the predictive GPWS functions must not be based on flight crew
judgement only.
According to our FOM, what are some conditions when GPWS may be inhibited? (Period 1) -
correct answers • The Ground Proximity Warning System (GPWS) may be inhibited or
deactivated if any of the following
conditions occur:
◦ A warning occurs during daylight VMC conditions and it is obvious that the aircraft position,
altitude
and gear/flap configuration are satisfactory.
Note:
Proximity to a strong temperature inversion may cause the radio altimeter to show height
above
differing air densities.
◦ The GPWS fault monitor light illuminates and the fault cannot be corrected.
, Note:
Flagging radio altimeter may cause the light to illuminate. Do not inhibit GPWS if the radio
altimeter
flagging is above 2500' AGL
◦ When a planned abnormal condition requires aircraft operation within the boundaries of the
GPWS
warning envelope (i.e., abnormal gear or flap landing configurations).
◦ On a front course ILS, the inhibit function should only be used when flight below the
glideslope is
intentional (e.g., when following the glideslope to touchdown precludes landing at the normal
touchdown point). Never cancel an actual glideslope warning until clear of all clouds and the
runway
is clearly in sight.
What is the significance of the red FAULT illuminating on the RAT & EMER GEN light?
(Period 1) - correct answers • AC BUS1 and AC BUS 2 are lost and the emergency generator is
not supplying electrical power
When would the red FAULT light on the RAT & EMER GEN light normally illuminate? (Period 1) -
correct answers • The fault light will illuminate once the RAT is deployed and electrical power is
not being supplied (approximately eight seconds)
How can the RAT be deployed?
(Period 1) - correct answers • Manually by pushing MAN ON (EMER ELEC PWR Panel) or RAT
MAN ON (HYDRAULIC Panel).
• Automatically by the loss of both AC BUS 1 and AC BUS 2
What is the difference between the automatic RAT deployment and manual RAT deployment by
pressing the RAT MAN ON on the HYD panel?
(Period 1) - correct answers • RAT MAN ON supplies Blue Hydraulic pressure only, no electrical
generation
After deploying the RAT by pressing the RAT MAN ON pushbutton on the HYD panel it becomes
necessary to also extract electrical power. How can this be accomplished? (Period 1) - correct
answers By pressing the MAN ON pushbutton on the EMER ELEC PWR
& Practice Material
What happens when a pilot presses and holds the MECH pb on the CALLS panel? (Period 1) -
correct answers • It illuminates a blue light on the EXT PWR PANEL and sounds an external
horn.
How should a pilot call the forward flight attendant? (Period 1) - correct answers • Press the
FWD button on the Calls Panel
When would a pilot push the EMER pushbutton on the CALLS panel? (Period 1) - correct
answers • When there is an emergency and the Pilot would like to speak with Flight Attendant
A
What happens when a pilot pushes the CREW SUPPLY PUSHBUTTON? (Period 2) - correct
answers Valve opens to supply low-pressure oxygen to the masks.
How does the passenger fixed oxygen system work and how long does it last?(Period 2) -
correct answers Chemical oxygen generators last for approximately 15 minutes
What does the illumination of the SYS ON light mean? Does this mean that all the masks have
deployed? (Period 2) - correct answers The signal has been sent to release the oxygen mask
doors, but some masks may have to be deployed manually.
What causes automatic deployment of the masks?(Period 2) - correct answers Cabin altitude
reaching approximately 14,000 feet
How is the crew oxygen mask microphone deactivated when the mask is stowed? (Period 2) -
correct answers The RESET control slide will accomplish this - it does not happen automatically.
What indication would a pilot have of a crew oxygen cylinder thermal discharge?(Period 2) -
correct answers The green disk on the lower left side of the forward fuselage would be missing.
Could the passenger fixed oxygen mask provide oxygen for anything other than
depressurization?(Period 2) - correct answers No, unless there is a written FCOM or QRH
procedure for its use
How can a flight crew determine the flight crew oxygen pressure required for the flight?
(Period 2) - correct answers • FCOM - Limitations - Oxygen - Minimum Flight Crew Oxygen
Pressure
What do the minimum oxygen bottle pressure quantities guarantee? (Period 2) - correct
answers • Preflight checks
,• The use of oxygen, when only one flight crewmember is in the cockpit
• Unusable quantity (to ensure regulator operation with minimum pressure) - Normal system
leakage
• The most demanding case among the following:
◦ Protection after loss of cabin pressure, with mask regulator on NORMAL (diluted oxygen):
▪ During emergency descent for all flight crewmembers and observers for 15 minutes
▪ During cruise at FL100 for two flight crewmembers for 105 minutes.
◦ Protection against smoke with 100% oxygen for all flight crewmembers and observers during
15 minutes at 8,000 ft cabin altitude.
On the ground, if there is an amber half frame around the CKPT OXY PSI box, where would you
look to see if you have enough oxygen for the flight? (Period 2) - correct answers • FCOM -
Limitations - Oxygen
Why is the GND CTL pushbutton selected to ON during preflight? (Period 1) - correct answers •
To record preflight activities in the cockpit
If the GND CTL pushbutton was not selected ON, how would the system work in automatic
mode? (Period 1) - correct answers • On the ground during the first 5 minutes after the aircraft
electrical network is energized
• On the ground after the first engine start
• In flight (whether the engines are running or not)
On the ground, it is stopped automatically 5 minutes after the last engine shutdown provided
the CVR jack is not used
What allows the cabin PAs to be recorded? (Period 1) - correct answers ACP 3 PA volume knob
out and set at or above the medium range
What does pressing the SYS pushbutton do? (Period 1) - correct answers All basic GPWS alerts
(mode 1 to 5) are inhibited
What does an amber FAULT light in the SYS pushbutton indicate on the GPWS panel? ((Period
1) - correct answers any failure of GPWS mode 1 through 5
What effect, if any, does an amber FAULT light in the SYS pushbutton have on the TERR mode?
(Period 1) - correct answers • No effect at all
Describe a situation when a pilot might press LDG FLAP 3. (Period 1) - correct answers • When
directed to by the ECAM or procedure.
,• When intending to land using flaps 3
• In this case, LDG MEMO displays FLAPS CONF 3 instead of CONF FULL
Describe a situation when a pilot might press the FLAP MODE pushbutton. (Period 1) - correct
answers • When directed by the ECAM or procedure to avoid nuisance warning in case of
landing with flaps
setting reduced.
What effect, if any, does the failure of TERR mode have on basic GPWS? (Period 1) - correct
answers No effect whatsoever
According to our limitations, in what conditions should predictive GPWS be inhibited? (Period
1) - correct answers • The predictive GPWS functions should be inhibited (TERR pushbutton to
OFF, on the GPWS panel)
when the aircraft position is less than 15 NM from the airfield:
◦ For operations from/to runways not incorporated in the predictive GPWS database.
◦ For specific approach or departure procedures, which have previously been identified by the
operator as potentially causing expected or spurious terrain alerts.
Note:
The decision to inhibit the predictive GPWS functions must not be based on flight crew
judgement only.
According to our FOM, what are some conditions when GPWS may be inhibited? (Period 1) -
correct answers • The Ground Proximity Warning System (GPWS) may be inhibited or
deactivated if any of the following
conditions occur:
◦ A warning occurs during daylight VMC conditions and it is obvious that the aircraft position,
altitude
and gear/flap configuration are satisfactory.
Note:
Proximity to a strong temperature inversion may cause the radio altimeter to show height
above
differing air densities.
◦ The GPWS fault monitor light illuminates and the fault cannot be corrected.
, Note:
Flagging radio altimeter may cause the light to illuminate. Do not inhibit GPWS if the radio
altimeter
flagging is above 2500' AGL
◦ When a planned abnormal condition requires aircraft operation within the boundaries of the
GPWS
warning envelope (i.e., abnormal gear or flap landing configurations).
◦ On a front course ILS, the inhibit function should only be used when flight below the
glideslope is
intentional (e.g., when following the glideslope to touchdown precludes landing at the normal
touchdown point). Never cancel an actual glideslope warning until clear of all clouds and the
runway
is clearly in sight.
What is the significance of the red FAULT illuminating on the RAT & EMER GEN light?
(Period 1) - correct answers • AC BUS1 and AC BUS 2 are lost and the emergency generator is
not supplying electrical power
When would the red FAULT light on the RAT & EMER GEN light normally illuminate? (Period 1) -
correct answers • The fault light will illuminate once the RAT is deployed and electrical power is
not being supplied (approximately eight seconds)
How can the RAT be deployed?
(Period 1) - correct answers • Manually by pushing MAN ON (EMER ELEC PWR Panel) or RAT
MAN ON (HYDRAULIC Panel).
• Automatically by the loss of both AC BUS 1 and AC BUS 2
What is the difference between the automatic RAT deployment and manual RAT deployment by
pressing the RAT MAN ON on the HYD panel?
(Period 1) - correct answers • RAT MAN ON supplies Blue Hydraulic pressure only, no electrical
generation
After deploying the RAT by pressing the RAT MAN ON pushbutton on the HYD panel it becomes
necessary to also extract electrical power. How can this be accomplished? (Period 1) - correct
answers By pressing the MAN ON pushbutton on the EMER ELEC PWR
