Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Republic Airways > Hydraulic System > Flashcards

Hydraulic System Flashcards

1
Q

When is ACMP 3A normally selected ON?

A

Captain Before Start flow

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

When is ACMP 3A normally selected OFF?

A

Captain Parking flow

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

Each hydraulic system has and EDP and ACMP (T/F).

A

False

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

Can hydraulic fluid be transferred between the systems?

A

No

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

Which hydraulic ACMP can be powered by the RAT?

A

3A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Hydraulic system 3 provides which flight controls?

A

Elevator, Aileron, Rudder

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

The EDPs normally deliver hydraulic fluid at ____PSI.

A

3000

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

The AC powered pumps in hydraulic system 3 include:

A

3A and 3B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How many hydraulic systems are on the plane?

A

3 independent systems

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What systems use hydraulic power (6)?

A

Flight controls, spoilers, landing gear, wheel brakes, thrust reversers, nosewheel steering

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How many hydraulic pumps are on the aircraft?

A

2 EDPs, 4 ACMP, 1 PTU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How many electric pumps are used for systems 1 and 2?

A

1 per system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How long after power up should you wait before any hydraulic pumps should be turned on and why?

A

3 minutes to allow the flight controls to accomplish their built in PBIT test

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the primary and back up source of hydraulic pressure for system 3?

A

Primary ACMP 3A

Backup ACMP 3B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

When will the HYD ACMP 1 automatically activate on the ground?

A

Flaps >0 and groundspeed >50 knots
OR
Flaps >0 and thrust levers set to T/O

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When will ACMP 2 automatically activate on the ground?

A

Flaps >0 and groundspeed >50 knots
OR
Flaps >0 and thrust levers set to T/O
OR
Engine 1 running with parking brake released
OR
Engine 1 start (once N2 reaches 40%) if parking brake has been applied within the last 6 minutes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

When does ACMP 2 automatically turn off on the ground?

A

When parking brake has been set for >6 minutes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

When will ACMP 1 and 2 automatically activate in flight?

A

EDP failure or flaps > 0

19
Q

Can we disable the EDP by pressing the SYS 1 or SYS 2 ENGINE PUMP SHUTOFF button in?

A

No

20
Q

If the SYS 1 or 2 ENG PUMP SHUTOFF button is pushed in, will the respective EDP keep running?

A

Yes

21
Q

What happens when pushing in the HYD SYS 1 or SYS 2 ENGINE PUMP SHUTOFF guarded buttons?

A

Closes the respective hydraulic shutoff valve, isolating the respective EDP from the hydraulic system

22
Q

What is the PTU?

A

Power Transfer Unit

23
Q

How does the PTU work?

A

Hydraulic pump in hydraulic system 2 driven by a hydraulic motor installed in hydraulic system 1

24
Q

Will the PTU operate if on the ground in AUTO?

A

No

25
Q

The PTU is used to assist in landing gear operation should the right engine (#2) or right EDP fail (T/F).

A

True

26
Q

What is the purpose of the PTU?

A

Assist in landing gear retraction or extension in the event of engine 2 or EDP 2 failure

27
Q

Does fluid transfer occur between hydraulic systems while using the PTU?

A

No

28
Q

The PTU uses hydraulic power from system 1 to provide pressure to system 2 to power normal operation of which system?

A

Landing gear

29
Q

What conditions must be met for the PTU to automatically activate during takeoff or landing?

A

a. Engine 2 or EDP 2 failure
b. Flaps not set to 0, landing gear not up and locked
c. EDP 1 not failed
d. Hydraulic reservoir 2 > 12%

30
Q

Why is there a PTU when ACMP 2 acts as the backup for EDP 2?

A

PTU assists to retract the landing gear because ACMP 2 has lower flow rate than EDP 2

31
Q

What is the primary purpose of ACMP 3A?

A

Backup for the primary flight controls

32
Q

Why does hydraulic ACMP 3A have an ON position

A

ACMP is the primary pump for system 3 and has no automation

33
Q

Why does hydraulic ACMP 3B have an AUTO position?

A

ACMP 3B is back up for ACMP 3A and automatically activates if ACMP 3A fails when the selector knob is in AUTO

34
Q

What is the purpose of the hydraulic ACMP 1 and 2?

A

Used as back up for the respective EDP

35
Q

Why does the selector knob for hydraulic systems 1 and 2 ELEC PUMPs have an ON position?

A

To override the system and turn the respective pump on

36
Q

Which ACMPs are automatically switched on for takeoff and landing?

A

ACMP 1 and 2

37
Q

If both engines fail, what provides hydraulic pressure to the flight controls until the RAT comes on line?

A

Hydraulic 3 accumulator

After 8 seconds, the RAT will power ACMP 3A

38
Q

If both engines fail, what provides hydraulic pressure to the flight controls after the RAT comes on line?

A

3A ACMP

39
Q

What ACMP will function if the RAT is the only power source?

A

ACMP 3A

40
Q

Using RAT power, if ACMP 3A fails, will ACMP 3B operate?

A

No, ACMP 3B is not powered by the RAT

41
Q

What items are on HYD system 1?

A 
Lefthand outboard elevator
Upper rudder
Lefthand thrust reverser
Multifunction spoilers 3 and 4
Ground spoiler 2
Outboard brake
42
Q

What items are on HYD system 2 (6)?

A 
Left and righthand inboard elevator
Left and righthand inboard aileron
Righthand thrust reverser
Multifunction spoiler 5
Ground spoiler 1
Inboard brakes
43
Q

What items operate on HYD system 3?

A

Righthand outboard elevator
Lower rudder
Lefthand and righthand outboard aileron

44
Q

When must a hydraulic warm-up be accomplished?

A

First flight of day with temperatures -18° or less

Republic Airways (18 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions