E175 Hydraulics Flashcards
The E175 has _________ independent hydraulic systems that power:
three
Flight controls
Spoilers
Landing gear
Nose wheel steering
Wheel brakes
Thrust reversers
If the a hydraulic quantity indication is cyan, the reservoir requires…
refilling
EDP1/2 is the _________ pump for hydraulic system 1/2. It is about _____ times as powerful as the ACMP, which primarily serves as a ________ to EDP1/2.
primary
four
backup
Hydraulic system 3 is powered by _____ ACMPs. ACMP 3A is the ________ pump and ACMP 3B serves as a _________ ___ ________ only.
two
primary
backup in flight
The PTU assists in landing gear _________ and __________ in the event that:
extension
retraction
EDP2 fails
Engine 2 fails
Is there ever fluid transfer between hydraulic systems?
No
In the event of EDP2 failure or engine 2 failure, the ________ _________ _____ (PTU) works because flow rate is mechanically transferred from _____ to _____. The PTU is all __________ and requires no ____ power.
Power Transfer Unit
EDP1 to EDP2
mechanical
AC
EDP1/2 is generally on when the ________ is running.
engine
There is a dedicated Emergency/Parking Brake ____________. It stores hydraulic pressure from systems _____ and _____. If hydraulic systems one and two become depressurized, the accumulator provides enough pressure for ____ emergency/parking brake applications.
accumulator
one and two
six
The PTU knob AUTO operation requires EDP1 to be ___________ and system 2 reservoir quantity to be at least ____.
operative
12%
ACMP1/2 knob in the AUTO position turns the pump on automatically for:
Takeoff
-Flaps set greater than ___* and…
-____ kts ground speed OR thrust levers at _____
In Flight
-Flaps set greater than ___* or…
-EDP1/2 _________, or…
-Engine 1/2 _________.
0*
50 kts
TO/GA
0*
failure
failure
When taxiing with only engine 2 running, turn ________ knob to the ____ position.
ACMP1
ON
ACMP1 does _____ automatically turn ____ in the event of a…..
not
on
single-engine taxi on engine 2.
