KV Notes Questions Flashcards
What powers the 2 EICAS screens?
Battery Bus
Are the 2 EICAS cooling fans powered by the Battery Bus?
No
Why is it important to provide APU/Ext electrical power to aircraft within 5 mins of energizing battery?
To prevent EICAS screens from overheating (will have no cooling fans)
What gathers data for EICAS display?
2 DCUs
How many chimes for caution and warning?
1 caution, 3 warning
What other aural warnings can DCU generate?
Fire bell for fire, warbler for stall, clacker for overspeed, siren for windshear and terrain
What aural warnings will DCU audio warning inhibit switches not cancel?
Windshear, EGPSW, TCAS
Which 4 ECP buttons are mechanical and not dependent of ECP microprocessor or ECP power?
PRI, STAT, CAS, STEP
When will oil pressure gauges be present on primary display in addition to digital readout?
With engines shutdown or with low oil pressure
When will N1 vibration gauges replace oil gauges?
With engines running and normal oil pressure
How is N2 vibration monitored?
System monitors N2 vib independently without display. If N2 vib exceeds a predetermined amount, VIB will be displayed inside the N2 gauge
When will flap gauge disappear?
With wheel brake temps normal range and gear/slats/and flaps retracted
When can you box caution messages and how?
Pressing CAS with both engines running.
When are certain caution messages inhibited on take off?
Thrust lever advancement to 400 feet
When are certain caution messages inhibited on landing?
400 agl to WOW plus 30 seconds, or when climbing above 400 feet (go around)
What will happen if ED1 fails?
Primary page will auto revert to ED2
Name several conditions that must be satisfied for TAKEOFF CONFIG OK message
Parking brake off, flight spoilers stowed, flaps between 8-20, stab trim inside green, rudder trim inside green, aileron trim inside take off range, auto pilot off
What drives the accessory gear box?
N2 compressor, which is driven by the high pressure turbine
What items are on the accessory gear box?
Hydraulic pump, 3 fuel pumps, oil pump, FADEC alternator, integrated drive generator, air turbine starter
There are 3 interconnected fuel pumps within the accessory gear box, what are they?
Low pressure, high pressure, and motive flow pump
What drives N1 fan?
Low pressure turbine
How many stages is low pressure turbine?
Four
How much of engine’s overall thrust is provided by N1 fan?
80%
What powers the variable geometry (VG) vanes?
Fuel pressure directed by FADEC
