Study Guide Hydraulics

Question 1

Basic components of hydraulic system?

Answer 1

Reservoirs
Pumps
Accumulator

Question 2

What are the purpose of the accumulators?

Answer 2

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

Question 3

How will ACMP one or two auto activate?

Answer 3

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.

Question 4

What are important items on system two?

Answer 4

Landing gear
Nose wheel steering
Inboard brakes

Question 5

What is the PTU?

Answer 5

Power transfer unit.

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

Question 6

Purpose of system three?

Answer 6

Back up flight controls.

Question 7

What AC pump will be used if RAT deploys?

Answer 7

3A only

Question 8

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

Answer 8

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

Question 9

What systems use hydraulic power?

Answer 9

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