1 | Page
NK STUDY GUIDE 2025 UPDATED
ACTUAL EXAM WITH CORRECT
SOLUTIONS.
What happens when a pilot presses and holds the MECH pb on
the CALLS panel? (ODD) - correct answer- • It illuminates a
blue light on the EXT PWR PANEL and sounds an external
horn.
How should a pilot call the forward flight attendant? (ODD) -
correct answer- • Press the FWD button on the Calls Panel
When would a pilot push the EMER pushbutton on the CALLS
panel? (ODD) - correct answer- • 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? (EVEN) - correct answer- Valve opens to
supply low-pressure oxygen to the masks.
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How does the passenger fixed oxygen system work and how
long does it last? (EVEN) - correct answer- 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? (EVEN) - correct
answer- 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? (EVEN) -
correct answer- Cabin altitude reaching approximately 14,000
feet
How is the crew oxygen mask microphone deactivated when
the mask is stowed? (EVEN) - correct answer- 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? (EVEN) - correct answer- The green disk
on the lower left side of the forward fuselage would be missing.
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Could the passenger fix oxygen mask provide oxygen for
anything other than depressurization? (EVEN) - correct answer-
No, unless there is a written procedure for its use.
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? (EVEN) - correct answer- • FCOM
- Limitations - Oxygen
Why is the GND CTL pushbutton selected to ON during
preflight? (ODD) - correct answer- • To record preflight activities
in the cockpit
If the pushbutton was not selected ON, how would the system
work in automatic mode? (ODD) - correct answer- • 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? (ODD) - correct
answer- ACP 3 PA volume knob out and set at or above the
medium range
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What does pressing the SYS pushbutton do? (EVEN) - correct
answer- 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? (EVEN) - correct answer- 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? (EVEN) - correct
answer- • No effect at all
Describe a situation when a pilot might press LDG FLAP 3.
(EVEN) - correct answer- • To avoid nuisance warning in case
of landing in CONF 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. (EVEN) - correct answer- • To avoid nuisance
warning in case of landing with flaps setting reduced
• FLAP SYS 1 (2) FAULT would require selection of FLAP
MODE off
NK STUDY GUIDE 2025 UPDATED
ACTUAL EXAM WITH CORRECT
SOLUTIONS.
What happens when a pilot presses and holds the MECH pb on
the CALLS panel? (ODD) - correct answer- • It illuminates a
blue light on the EXT PWR PANEL and sounds an external
horn.
How should a pilot call the forward flight attendant? (ODD) -
correct answer- • Press the FWD button on the Calls Panel
When would a pilot push the EMER pushbutton on the CALLS
panel? (ODD) - correct answer- • 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? (EVEN) - correct answer- Valve opens to
supply low-pressure oxygen to the masks.
,2 | Page
How does the passenger fixed oxygen system work and how
long does it last? (EVEN) - correct answer- 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? (EVEN) - correct
answer- 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? (EVEN) -
correct answer- Cabin altitude reaching approximately 14,000
feet
How is the crew oxygen mask microphone deactivated when
the mask is stowed? (EVEN) - correct answer- 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? (EVEN) - correct answer- The green disk
on the lower left side of the forward fuselage would be missing.
,3 | Page
Could the passenger fix oxygen mask provide oxygen for
anything other than depressurization? (EVEN) - correct answer-
No, unless there is a written procedure for its use.
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? (EVEN) - correct answer- • FCOM
- Limitations - Oxygen
Why is the GND CTL pushbutton selected to ON during
preflight? (ODD) - correct answer- • To record preflight activities
in the cockpit
If the pushbutton was not selected ON, how would the system
work in automatic mode? (ODD) - correct answer- • 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? (ODD) - correct
answer- ACP 3 PA volume knob out and set at or above the
medium range
, 4 | Page
What does pressing the SYS pushbutton do? (EVEN) - correct
answer- 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? (EVEN) - correct answer- 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? (EVEN) - correct
answer- • No effect at all
Describe a situation when a pilot might press LDG FLAP 3.
(EVEN) - correct answer- • To avoid nuisance warning in case
of landing in CONF 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. (EVEN) - correct answer- • To avoid nuisance
warning in case of landing with flaps setting reduced
• FLAP SYS 1 (2) FAULT would require selection of FLAP
MODE off
