Hydraulic Flashcards

0
Q

With the switch in the auto position, pump 3B will be operating during normal takeoffs and landings.

A

True

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1
Q

Pump 3B is automatically running during a complete AC power failure: T/F

A

True

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2
Q

What is normal hydraulic system pressure

A

3000 PSI

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3
Q

What ACMP (AC Motor Pump) is directly powered by the ADG during an AC power failure?

A

3B is automatically powered during an AC power failure by the ADG when it is deployed.

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4
Q

What is the normal percentage of hydraulic fluid in the system

A

45% – 85%

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5
Q

AC motor pumps 1B and 2B Will automatically turn on during an engine failureT/F

A

False. You gotta turn them on.

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6
Q

What does a half-intensity cyan display of an engine on the EICAS hydraulic page indicate?

A

Engine is running

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7
Q

Where would you normally be able to read the hydraulic brake pressure

A

On the hydraulic synoptic page

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8
Q

Where can the hydraulic system be viewed on the EICAS under normal operating conditions

A

The EICAS ED2 hydraulic synoptic page

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9
Q

What activates the hydraulic shut off valve at the engine firewall?

A

Engine fire push switch light

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10
Q

When the hydraulic pumps one and two are set to AUTO, When will the pumps automatically start?

A

Any generator online and flaps are out of the 0° position

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11
Q

Which hydraulic pumps are Engine driven

A

1A and 2A

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12
Q

How are hydraulic systems # 1 and # 2 cooled?

A

Ram air/oil heat exchangers

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13
Q

True or false: Systems one and two are each powered by an EDP and an AC motor pump.

A

True

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14
Q

Hydraulic system 3 is powered by how many AC-motor pumps?

A

Two

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15
Q

During normal operations, System one provides hydraulic pressure to

A

Outboard multifunction spoiler panels

16
Q

With normal switch positions, which electric Hydraulic pump normally operates continuously?

17
Q

System 3 provides hydraulic pressure to

A

Inboard brakes

18
Q

System 2 provides hydraulic pressure to

A

Right side primary flight controls
right side spoileron
outboard brakes

19
Q

How many hydraulic systems are normally used to power the rudder

A

Three systems

20
Q

How many hydraulic pumps does the CRJ have?

A

6 - 2 engine driven and 4 electric

21
Q

You are at the gate with only the APU running. Which hydraulic pumps can operate?

A

All the electric pumps

22
Q

You’re taxiing out on a single engine (right engine). Which hydraulic pumps are running in normal operations (flaps up)

23
Q

The A pumps are engine driven, and the B pumps are electric AC motor pumps

24
What is considered low hydraulic pressure?
1800 PSI
25
What is considered high hydraulic pressure?
3200 PSI (amber)
26
What hydraulic system power the inboard ground spoilers
3 system
27
With the No. 1 engine shutdown in flight, which hydraulic pumps are not available?
1A
28
How many pumps does each hydraulic system have?
2
29
Which hydraulic system does not use a heat exchanger?
Hydraulic system 3
30
What hydraulic systems power the left aileron?
#1and #3 systems
31
What psi will hydraulic fluid see the relief pressure overflow?
3750 psi