CQT FINAL EXAM 2026/2027 QUESTIONS AND
SOLUTIONS RATED A+
✔✔Where does the Wing-Body Overheat system
monitor for both the Left and Right side? - ✔✔• Left/Right engine strut
• Left/Right inboard wing leading edge
• Left/Right-hand air conditioning bay
✔✔What two unique areas does the Left side
Wing-Body Overheat system monitor? - ✔✔• Keel beam
• Bleed duct from APU
✔✔What is the purpose of the TRIP RESET
switch? - ✔✔700
Resets BLEED TRIP OFF, PACK TRIP OFF, and DUCT
OVERHEAT lights
800
Resets BLEED TRIP OFF, PACK, and ZONE TEMP lights
MAX
Resets BLEED, PACK, or ZONE TEMP lights
✔✔With the Isolation Valve switch in AUTO,
when will the valve automatically go from closed to
open? - ✔✔Opens automatically if either engine BLEED air or air
conditioning PACK switch is positioned OFF.
✔✔In the -700, what would cause the PACK
TRIP OFF light to illuminate? What happens? - ✔✔Indicates pack temperature has
exceeded limits.
Related pack valve automatically closes and mix
valves drive full cold.
✔✔In the -800, what would cause a PACK light
to illuminate? What about on recall? - ✔✔Illuminates
• Pack trip off (over temperature) or
• Failure of both primary and standby pack
controls or
• Failed closed Smart Ram Air Door Actuators
(SRADA) system fault (as installed)
Illuminates On Recall:
• Failure of either primary or standby pack
control or
• Smart Ram Air Door Actuator (SRADA)
system fault other than failed closed (as
,installed)
✔✔Prior to takeoff, if an amber caution light
illuminates only on MASTER CAUTION recall but
goes out when the MASTER CAUTION is reset, is
running the associated QRH required? - ✔✔When system operation is maintained by a
second
channel, the amber caution light extinguishes with a
MASTER CAUTION reset, and reference to the
associated checklist is not required.
✔✔In the MAX, what would cause both PACK
lights to illuminate? - ✔✔Incorrect pack configuration after takeoff or go-
around 45 seconds after flap retraction.
✔✔What does a DUAL BLEED light mean? - ✔✔APU bleed air valve open and engine
No. 1 BLEED
air switch ON, or engine No. 2 BLEED air switch ON,
APU bleed air valve and isolation valve open.
✔✔In the -700, what would cause the DUCT
OVERHEAT lights to illuminate and what happens? - ✔✔Distribution air temperature in
related duct exceeds
limit. Air mix valves drive full cold.
✔✔In the -800, what would cause a PACK light
to illuminate? What about on recall? - ✔✔Illuminates
• Pack trip off (over temperature) or
• Failure of both primary and standby pack
controls or
• Failed closed Smart Ram Air Door Actuators
(SRADA) system fault (as installed)
Illuminates On Recall:
• Failure of either primary or standby pack
control or
• Smart Ram Air Door Actuator (SRADA)
system fault other than failed closed (as
installed)
✔✔Prior to takeoff, if an amber caution light
illuminates only on MASTER CAUTION recall but
goes out when the MASTER CAUTION is reset, is
running the associated QRH required? - ✔✔When system operation is maintained by a
second
channel, the amber caution light extinguishes with a
, MASTER CAUTION reset, and reference to the
associated checklist is not required.
✔✔In the -800, what would cause a PACK light
to illuminate? What about on recall? - ✔✔Illuminates
• Pack trip off (over temperature) or
• Failure of both primary and standby pack
controls or
• Failed closed Smart Ram Air Door Actuators
(SRADA) system fault (as installed)
Illuminates On Recall:
• Failure of either primary or standby pack
control or
• Smart Ram Air Door Actuator (SRADA)
system fault other than failed closed (as
installed)
✔✔6. How many pressure relief valves are on the
aircraft? - ✔✔wo positive pressure relief valves and one
negative pressure relief valve.
✔✔Why is there a CAUTION associated with
using manual pressurization? - ✔✔The manual motor operates at a higher rate than the
AUTO or ALTN motor.
A small movement of the outflow valve can cause a
large change in cabin rate of climb rate or descent.
Manual actuation of the outflow valve can produce
large, rapid changes in cabin pressure which could
result in passenger and crew discomfort and/or injury
✔✔What are some of the reasons that the green
ON light would extinguish on the Window Heat
Panel? - ✔✔• Switch is OFF, or
• An overheat is detected, or
• A system failure has occurred, or
• System is at correct temperature
✔✔If a window heat switch is ON, and the
associated green ON light is not illuminated, how can
you determine if the system is operating normally? - ✔✔Perform a confidence test using
the PWR TEST
selection. If any green ON light remains
extinguished during the power test, the system is
inoperative.
SOLUTIONS RATED A+
✔✔Where does the Wing-Body Overheat system
monitor for both the Left and Right side? - ✔✔• Left/Right engine strut
• Left/Right inboard wing leading edge
• Left/Right-hand air conditioning bay
✔✔What two unique areas does the Left side
Wing-Body Overheat system monitor? - ✔✔• Keel beam
• Bleed duct from APU
✔✔What is the purpose of the TRIP RESET
switch? - ✔✔700
Resets BLEED TRIP OFF, PACK TRIP OFF, and DUCT
OVERHEAT lights
800
Resets BLEED TRIP OFF, PACK, and ZONE TEMP lights
MAX
Resets BLEED, PACK, or ZONE TEMP lights
✔✔With the Isolation Valve switch in AUTO,
when will the valve automatically go from closed to
open? - ✔✔Opens automatically if either engine BLEED air or air
conditioning PACK switch is positioned OFF.
✔✔In the -700, what would cause the PACK
TRIP OFF light to illuminate? What happens? - ✔✔Indicates pack temperature has
exceeded limits.
Related pack valve automatically closes and mix
valves drive full cold.
✔✔In the -800, what would cause a PACK light
to illuminate? What about on recall? - ✔✔Illuminates
• Pack trip off (over temperature) or
• Failure of both primary and standby pack
controls or
• Failed closed Smart Ram Air Door Actuators
(SRADA) system fault (as installed)
Illuminates On Recall:
• Failure of either primary or standby pack
control or
• Smart Ram Air Door Actuator (SRADA)
system fault other than failed closed (as
,installed)
✔✔Prior to takeoff, if an amber caution light
illuminates only on MASTER CAUTION recall but
goes out when the MASTER CAUTION is reset, is
running the associated QRH required? - ✔✔When system operation is maintained by a
second
channel, the amber caution light extinguishes with a
MASTER CAUTION reset, and reference to the
associated checklist is not required.
✔✔In the MAX, what would cause both PACK
lights to illuminate? - ✔✔Incorrect pack configuration after takeoff or go-
around 45 seconds after flap retraction.
✔✔What does a DUAL BLEED light mean? - ✔✔APU bleed air valve open and engine
No. 1 BLEED
air switch ON, or engine No. 2 BLEED air switch ON,
APU bleed air valve and isolation valve open.
✔✔In the -700, what would cause the DUCT
OVERHEAT lights to illuminate and what happens? - ✔✔Distribution air temperature in
related duct exceeds
limit. Air mix valves drive full cold.
✔✔In the -800, what would cause a PACK light
to illuminate? What about on recall? - ✔✔Illuminates
• Pack trip off (over temperature) or
• Failure of both primary and standby pack
controls or
• Failed closed Smart Ram Air Door Actuators
(SRADA) system fault (as installed)
Illuminates On Recall:
• Failure of either primary or standby pack
control or
• Smart Ram Air Door Actuator (SRADA)
system fault other than failed closed (as
installed)
✔✔Prior to takeoff, if an amber caution light
illuminates only on MASTER CAUTION recall but
goes out when the MASTER CAUTION is reset, is
running the associated QRH required? - ✔✔When system operation is maintained by a
second
channel, the amber caution light extinguishes with a
, MASTER CAUTION reset, and reference to the
associated checklist is not required.
✔✔In the -800, what would cause a PACK light
to illuminate? What about on recall? - ✔✔Illuminates
• Pack trip off (over temperature) or
• Failure of both primary and standby pack
controls or
• Failed closed Smart Ram Air Door Actuators
(SRADA) system fault (as installed)
Illuminates On Recall:
• Failure of either primary or standby pack
control or
• Smart Ram Air Door Actuator (SRADA)
system fault other than failed closed (as
installed)
✔✔6. How many pressure relief valves are on the
aircraft? - ✔✔wo positive pressure relief valves and one
negative pressure relief valve.
✔✔Why is there a CAUTION associated with
using manual pressurization? - ✔✔The manual motor operates at a higher rate than the
AUTO or ALTN motor.
A small movement of the outflow valve can cause a
large change in cabin rate of climb rate or descent.
Manual actuation of the outflow valve can produce
large, rapid changes in cabin pressure which could
result in passenger and crew discomfort and/or injury
✔✔What are some of the reasons that the green
ON light would extinguish on the Window Heat
Panel? - ✔✔• Switch is OFF, or
• An overheat is detected, or
• A system failure has occurred, or
• System is at correct temperature
✔✔If a window heat switch is ON, and the
associated green ON light is not illuminated, how can
you determine if the system is operating normally? - ✔✔Perform a confidence test using
the PWR TEST
selection. If any green ON light remains
extinguished during the power test, the system is
inoperative.
