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CL-65 Study Guide > Hydraulics > Flashcards

Flashcards in Hydraulics Deck (39):
1

Normal operating pressure?

3,000 psi

2

Where are system 1 & 2 serviced?

Aft equipment bay

3

How many pumps does each system have?

2:
Main pump A (EDP - 1A/2A)
Backup pump B (ACMP - 1B/2B 3A/3B)

4

How many hydraulic systems?

3

5

Which of the 3 is the largest?

3

6

Which of the 3 is the smallest?

1

7

System 1 powers:

(Refer to picture)

RUDDER
ELEVATOR
L AIL
OB SPLRON
OB FLT SPLRS
OB GND SPLRS
L REVERSER

8

System 2 powers:

Refer to picture)

RUDDER
ELEVATOR
AIL R
IB SPLRON
IB FLT SPLRS
IB GND SPLRS
LG ALT EXT
OUTBD BRAKES
REVERSER R

9

1A/2A are running when:

The associated engine is running

10

Do 1B/2B auto start after engine/EDP failure?

No

11

System 1 & 2 cooling cooled by:

Cooled by common air/oil heat exchanger in aft equipment bay (air from ram air scoop moves across heat exchanger)

12

What 2 switchlights close the Hydraulic Shutoff Valve?

HYD SOV
ENG FIRE PUSH

13

How are 3A/3B actuated?

Electrically

14

How often does 3A normally run?

Continuously

15

System 3 is serviced where?

Ground service panel, right side of fuselage, aft of wing root

16

When does 3B normally run?

During periods of high-flow requirement

17

Which pump is automatically powered during AC power failure?

3B

18

What do the hydraulic systems power?

- rudder
- elevators
- ailerons
- multifunction spoilers
- ground spoilers
- thrust reversers
- wheel brakes
- nosewheel steering
- landing gear

19

What kind of hydraulic fluid?

Skydrol

20

Main pumps (A) meet needs of:

Normal flight controls

21

Auto Mode causes 1B/2B to operate when:

- their respective bus is powered
- any generator operating
- flaps not at 0

22

During Manual Mode, 1B/2B operate when:

- their respective bus is powered
- any generator is operating

23

Where is hydraulic info displayed?

Hydraulic Synoptic Page

24

How many reservoirs/accumulators?

1 per system

25

System 3 powers:

Rudder & Elevator
L & R Ailerons
IB GND SPLRS
LDG GEAR
NW STEERING
INBD BRAKES

26

Does system 3 use a heat exchanger?

No

27

Does 3B auto start after 3A failure?

No

28

3B Auto Mode: Activated when:

- Associated bus is powered
- Flaps not at 0

29

Are there any flight deck controls for EDP1/2?

No

30

Reservoir quantity?

45-85%

31

Low pressure?

<1800 psi

32

High pressure?

3200 psi

33

Pressure relief occurs at:

3750 psi

34

High temp?

>= 96 C

35

How many accumulators?

5 (1 for each system, 1 for each brake system)

36

What color is the hydraulic fluid?

Purple

37

How many systems actuate the elevator, rudder, & ailerons?

All 3

38

Stab trim rates & priority:

CA: .5 deg/sec
FO: .5 deg/sec
AP: .5 deg/sec (flaps in motion)
.1 deg/sec (flaps stationary)
Mach trim: .03-.06 deg/sec

39

System 3 powers:

(Refer to picture)

RUDDER
ELEVATOR
L AIL R
IB GND SPLRS
LDG GEAR
N/W STEER