end of lesson questions Flashcards
______ pumps are installed in the center hydraulic system.
4
Hydraulic reservoirs are pressurized by:
Bleed air
Left and right engine driven pumps operate continuously, while the left and right electric pumps operate on-demand.
True
The left hydraulic system normally powers:
Flight Controls
Right Yaw Damper
Hydraulic fluid is cooled by:
Fuel tank heat exchangers
What displayed hydraulic quantity will result in a refill (RF) message, indicating that the reservoir should be refilled?
.75 or less
Pump low pressure indications are inhibited when the associated pump is selected OFF.
False
The pitch enhancement system (PES) supplies power to:
Stabilizer trim
When will the QTY light illuminates on the Hydraulic Panel and the EICAS advisory message L, R or C HYD QTY displays
quantity is .50 or less,
What would cause an IDG to disconnect? Choose all correct answers.
GEN DRIVE DISC switch pushed
Thermal disconnect on some a/c
Power from the generator is routed to the main AC bus through the generator control breaker.
true
Which items are powered by the main AC buses?
utility and galley buses
flight instrument transfer buses
TRUs
What can power the ground handling bus?
external power
APU
The ground service bus can be powered on the ground and in flight.
true
What items will shed when the first engine start selector is moved to the GND position?
both utility buses
If the center hydraulic system fails, the right autopilot will:
not be affected
LNAV will activate immediately when selected with the airplane within ___ NM of the route.
2.5
True or False: Once the autothrottles have been disconnected with the A/T disconnect switches on the thrust levers, the A/T ARM switch must be cycled to rearm the autothrottle.
false
Which is the FMA indication that the go-around mode is armed?
there is no FMA indication that GA is armed
What stations can be connected through the flight interphone system?
ground crew at nose
all flight deck postions
