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Flashcards in Study Guide Hydraulics Deck (9)
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1

Basic components of hydraulic system?

Reservoirs
Pumps
Accumulator

2

What are the purpose of the accumulators?

Helps maintain constant pressure by covering transient demands.
Helps to avoid pump cavitation.

3

How will ACMP one or two auto activate?

On the ground.... Flaps out of zero... Thrust set for take off...speed greater than 50 knots

In flight..... Engine failure of failure or EDP.

4

What are important items on system two?

Landing gear
Nose wheel steering
Inboard brakes

5

What is the PTU?

Power transfer unit.
It is a mechanical pump that uses system one to provide pressure for system two.

6

Purpose of system three?

Back up flight controls.

7

What AC pump will be used if RAT deploys?

3A only

8

In an electrical EMER can hyd three power requirements over load the RAT?

No, a flow limiter valve is used to reduce and limits pump electrical power draw to prevent rat stall.

9

What systems use hydraulic power?

Flight controls
Spoilers
Landing gear
Nose wheel steering
Wheel brakes
Thrust reversers