Hydraulic System Flashcards

1
Q

The Demand Pump Selectors for System 1 and 4 are in AUTO. What will cause them to activate?
(AOM Vol II, Ch 13)

A
  • Respective engine pump output is low.
  • Respective Fuel Control Switch is in cutoff .
  • Flaps in transit on the ground .
  • Flaps out of up in flight.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The Auxiliary Hydraulic Pump(s) are powered by what bus or busses?
(AOM Vol II, Ch 13)

A

• The Ground Handling Bus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The number 4 Auxiliary Hydraulic Pump is selected on. Is the number 4 SYS FAULT light illuminated
(AOM Vol II, Ch 13)

A

• No.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Name the power sources for the Demand pumps?

AOM Vol II, Ch 13

A
  • Number 1 and 4 are air driven.

* Number 2 and 3 are electric.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What causes the hydraulic SYS FAULT light to illuminate? (AOM Vol II, Ch 13)

A
  • Low hydraulic system pressure.
  • Low hydraulic reservoir quantity.
  • Excessive hydraulic fluid temperature.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the minimum hydraulic quantity for dispatch?

AOM Vol I, Ch NP

A

• .70 as indicated on the secondary EICAS HYD synoptic or STAT display.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the implication of a BRAKE SOURCE light illuminated in flight?
(AOM Vol II, Ch 13)

A

• You have lost hydraulic systems 4, 1 and 2.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Hydraulic System 1 EDP is leaking. The EICAS advisory message “HYD PRESS ENG 1” is displayed. You look on the STATUS Page and see that the system 1 quantity indicates zero. Is Hydraulic System 1 still powered? If so, why?
(AOM Vol II, Ch 13)

A
  • Yes
  • The ADP draws its supply from the reservoir bottom. The EDP draws its supply from the reservoir at a level above the bottom, but coincident with the zero index of the quantity indication.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Hydraulic System 1 is unpowered. What major components are now unavailable?
(AOM Vol II, Ch 13)

A
  • Nose and Body Gear hydraulic operation.
  • Nose and Body Gear steering.
  • Inboard Trailing Edge Flap hydraulic operation.
  • Autopilot C.
  • Left outboard Elevator.
  • System 1 Alternate brakes.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Why does RF display next to the hydraulic quantity indication?
Where is it displayed?
Will it display in flight?
(AOM Vol II, Ch 13)

A
  • Indicates that refill of the hydraulic reservoir is required.
  • It is displayed on the Secondary EICAS Status Page and Hydraulic Synoptic.
  • No.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly