Systems - Hydraulics Flashcards
What is the maximum hydraulic system pressure? (FM 8.130.10.1)
3000 +/- 200 PSI.
When is the blue hydraulic system pressurized? (FM 8.130.10.1)
Automatic with first engine start.
What is the status of the yellow hydraulic system in the graphic below?
(FM 8.130.20.5)
The ENG PUMP switch is ON and hydraulic pressure is low.
If the ENG 2 FIRE switch is released out (FM 8.130.20.5)
The PTU pressurizes the yellow system.
Which hydraulic system pump(s) is/are running after #1 engine start?
(FM 8.130.20.1)
Green & Blue
When is the PTU inhibited? (FM 8.130.10.3)
Nose wheel disconnect pin installed and one engine master switch ON.
The PTU is automatically activated when there is a ___ PSI differential pressure between the ____ and ____ hydraulic systems. (FM 8.130.10.3)
500, green, yellow
What does the amber PTU indication mean? (FM 8.130.20.5)
The PTU is switched off.
In flight, a PTU FAULT light, in addition to an ENG 2 PUMP FAULT light, could indicate a (FM 8.130.20.2)
Yellow hydraulic reservoir low fluid level.
In flight, in addition to the PTU FAULT light, what other FAULT light will illuminate for a green or yellow system reservoir problem?
(FM 8.130.20.1)
ENG 1 or 2 PUMP FAULT light.
The RAT pressurizes the blue hydraulic system to (FM 8.130.10.3)
2500 PSI
The RAT can be deployed as an emergency means of pressurizing the ____ hydraulic system. (FM 8.130.10.3)
Blue
When will the RAT automatically extend? (FM 8.130.10.3)
Loss of AC busses 1 and 2 above 100 knots.
Which hydraulic systems have electric pumps? (FM 8.130.10.5)
Blue and yellow.
Inflight, what does the RAT MAN ON switch do? (FM 8.130.10.3)
Extends the RAT and pressurizes the blue system.
