APU P-8A Flashcards
what is the apu oil specification for the P-8A?
mobile jet oil 2
what is the maximum start cycle for the start power unit (SPU) and start converter unit (SCU)
3 starts 15 minute break
pulling the apu fire switch up arms the apu extinguisher circuit and closes the fuel shut off
true
during apu operation the fluid coming from the forward drain of the apu is from
the aux tank
how many indication are there for an apu fire
more than 6
when the oil quantity report page shows ADD for the oil level, you must add oil to the apu within how many hours
30-50 hours
what do you do if the APU DET INOP light fails to illuminate
do not operate the apu
an apu maintenance problem exists when what light illuminates
maint light (blue)
what automatically control apu speed through the electronic fuel control
ECU
when external power is off what automatically assumes the entire electrical load
apu generator
moving the battery switch to off will NOT shut down the apu in flight or on the ground
false
rotating the apu fire switch in either direction mechanically fires squib, discharging the extinguishing agent into the apu
true
prior to the apu start, which fuel boost pump should be turned on
left center ac fuel tank
apu oil quantity may be checked by what method
apu bite test (all the above)
how many apu fire extinguishing bottles are on the P-8A
one
the center tank fuel pump switches should be positioned ON only if the fuel quantity in the center tank exceeds ___________ pounds
1000
the apu continues to operates for approximately how many seconds doing its cool down cycle
120 seconds
a DC operated boost pump is installed to ensure positive fuel pressure to what
the apu fuel control unit
the apu ground control panel is located where
right side main wheelwell
if the start fails or the APU RUNNING light fails to illuminate by the end of the start cycle what has just occurred
a system failure
it is required to immediately shut down the apu if a fuel spill occurs
true
the MO must recommend an individual prior to commencement of the apu turn up training
true
do not try an apu start if there is ice around the hinged flap of the vortex generator because of what
the motor inlet door actuator can be damage
while performing an apu fire warning system test on the ground, the remote apu fire warning horn does not sound
false
when applying external power or apu generator power, the standby hydraulic pump can operate for approximately how many seconds and may move rudders and/or thrust reversers
4 seconds
if you do not preserve an apu , at minimum it is recommended to do an apu operation at least once every how many day
7 days
the EGT indicator remains powered for how many minutes after shutdown
5 minutes
during the apu start cycle, the apu EGT indicator may fluctuate from____ to____ prior to normal EGT rise
0-1100
the apu has a single fire detection loop
true
the CO may delegate the authority to sign APU authorization as low as department heads
true
THE APU can be started or shutdown during refueling operations
true
what is the total oil quantity in quarts, in an apu at full
5.7 quarts
operate the apu for one full minute before using it as a bleed air source
true
apu fire protection consist of both the apu fire detection powered by the battery bus and the apu fire extinguishing by the hot battery bus
true
where does the electrical power to start the apu come from
two engine integrated drive generator (IDGs) that supply three- phase 115volts, 400 cycle alternating current
if you get an illuminated overspeed light the light will remain illuminated for how many minutes when the apu switch is placed off
5 minutes
pulling the apu fire switch up arms the apu extinguisher circuit and closes the fuel shutoff valve
true
the first thing you should do if a fire is detected is pull and rotate the apu switch for one seconds
true
if the ac and dc fuel pumps are not operating, fuel is suction fed from where
tank NO. 1
what must you do if the apu fire warning light is not illuminated but a fire indication exists or a fire is reported in or near the apu
shut down the apu
what starts the apu
aircraft ac system and aircraft main battery
