Hydraulic

Question 1

What aircraft components are actuated by the hydraulic System?

Answer 1

-Landing Gear Extension / Retraction
-Brakes- Main
-Emergency Parking Brake
-Multi-Function Spoilers
-Spring Loaded Rudder Booster
-Stick Pusher

Question 2

What is the function of the main hydraulic accumulator?

Answer 2

Stores pressure for periods of increased demand (simultaneous brake and ground spoiler application)

Question 3

What is the function of the Priority Valve?

Answer 3

Restricts flow on the landing Gear actuators during simultaneous operation of multiple hydraulic loads

Question 4

How many hydraulic filters in the system?

Answer 4

2 Total

Question 5

How much pressure is normally supplied to the hydraulic system through the following pumps?

Answer 5

Right: 2850 psi
Left: 3000 psi

Question 6

What is the indication of impending hydraulic filter bypass?

Answer 6

Differential Popup Indicators on the reservoir/manifold assembly

Question 7

What actions/conditions close the hydraulic shutoff valves?

Answer 7

-HYD PUMP switch CLOSED
-Fire Shutoff Button pushed in
-Hydraulic Fluid Overtemp (automatically closes both valves)

Question 8

What pilot action is necessary for an accurate hydraulic fluid level check?

Answer 8

Emergency/ Parking Brake accumulator completely discharged

Question 9

Above what value, following shutdown, should the hydraulic system pressure fall rapidly (1000 psi per second)?

Answer 9

1200 psi