oral prep Flashcards
how many IRUs
3
how do you ALIGN the IRUs
switch to NAV
how long does the alignment process take
About 10min
how can you tell how much longer until the alignment is complete
HDG counts down from 7 min
what is the initialization priority
GPS postion, gate postion, last postion and ARP, otherwise put in the LAT/LONG for the gate, then ARP
how can you force in a position
on the 3rd attempt it will accept the position entered
why does the ON DC illuminate momentarily during power up
part of a self test
IRU ALIGN light stays on for 30 seconds during shutdown. Why?
part of the shutdown process and the IRU is saving the LAST POS
the RAT provides HYD pressure to?
Spoilers
Autopilot servos
Flight controls (primary)
Elevator feel
Trim for stabilizer
Yaw damper
which HYD system does the RAT get its fluid from
the center system
when does the RAT deploy
when both engines fail
what is the min speed for the RAT to produce pressure
130kts
which system is the normal brakes on
right
which system are the alternate brakes on
center
how many HYD systems control the flight controls
all 3
where do you read the HYD quantity indicator
EFIS 2
what does RF mean
refill
what quantity will cause the gauge to switch to RF
75%
(HYD) what quantity will cause it to say QTY
50%
when do demand pumps run automatically
when there is a high HYD demand condition
what is the main reason for the C HYD SYS demand pump
to assist in getting the main landing gear doors up sooner
what is on the hot bat bus
clock
fire extinguisher bottles
APU fuel valve
spar fuel valves
parking break
with EXT power AVAIL light illuminated, what buses are powered
HOT BAT and ground handling buses
how many batteries are there
2 - the main and APU battery
when does UTIL BUS shedding occur
BOSS
Both thrust levers advanced to T/O range on the ground with engines shut down
Overload-electrical load exceeds power available
Starting engines
Single generator source (gen or eng failure)
with a left AC BUS light fault, will the captains flight instruments fail?
no, automatically powered from the right main AC BUS
what is the purpose of the BUS TIE system?
PPI-Prevent, provide and Isolate
Prevent paralleling of the left and right main buses
Provide power to both main buses
Isolate faults
when can a disconnected IDG be reconnected?
only on the ground
what does the HDG provide power to?
BATT and HOT BATT buses
left and right AC transfer buses
Standby AC and DC buses
captains FLT INSTR
what are the 5 times that pilot verification is required prior to pilot action
initial position
GEN DRIVE
thrust levers
fuel control switches
fire switches
is it possible to shed the galley bus and not the utility bus
yes
how does the APU get its fuel
left FWD AC pump or the DC pump in the left tank
what happens when you move the APU start switch ON?
the fault light cycles on then off
the APU door opens
the APU fuel valve opens
turns on the DC or AC fuel pumps
arms APU bleed valve to open
how long is the main A/C battery capable of powering the STBY PWR system
30 min
at what altitude must a single pilot be on oxygen
25,000ft
where do we load pets
BULK cargo compartment
when are AUTO BRAKES activated during takeoff
above 85kts and BOTH thrust levers at IDLE
which brake systems have anti-skid capability
All of them
when the APU RUN light flashes twice, what does this mean?
it is testing both APU circuits
what happens when you turn on the fuel jettison nozzle switches are selected ON?
jettison transfer valves open
jettison pumps operate (if installed)
sheds side window heat
equip cooling switches to overboard
