Hydraulics Flashcards
What Do The Engine-Driven Hydraulic Pumps Provide Power To?
*Gear
*Emergency LND Gear Actuator
*Nosewheel Steering
*Brakes
*Speedbrakes
*Spoilers
*Thrust Reversers
*Rudder Control
*Power Transfer And Conversion Unit (PTCU)
What Is Used To Set The Parking Brake?
An Electrically Powered Auxiliary Hydraulic Pump
How Do You Close The Hydraulic Firewall Shutoff Valve?
*ENG FIRE L Or R Push-Switch
*Hydraulic Switch To Off On Panel
Hydraulic Components Using System A
*Landing Gear-Emergency Accumulator
*PTCU Configurations
*Rudder Actuators (Lower)
*Rudder Standby System (RSS)
*Spoilers (Inboard)
*Spoilers (Outboard)
*TR - Left TR
*Wheel Brakes (Inboard)
Hydraulic Components Using System B
*Landing Gear
*Nosewheel Steering
*PTCU Configurations
*Rudder Actuators (Upper)
*Spoilers (Midboard)
*TR - Right TR
*Wheel Brakes (Outboard)
Nosewheel Steering Accumulator Provides How Many Sweeps?
2 Full Sweeps
The Brake Accumulators Will Allow What?
Emergency Brakes Until Pressure Within The Accumulators Is Depleted
The Spoiler System Accumulators Will Retain What?
Enough Pressure To Allow For The Automatic Deployment Of The Ground Spoilers (All 6 Panels) On Touchdown
The Priority Valve Allows For Prioritization Of What?
The Flight Controls Over The Landing Gear Extension System
The PTCU (Power Transfer And Conversion Unit) Allows What?
Bi-Directional Power Transfer Between Hyd System A and B In The Event Of The Loss Of Pressure In Either System
What (3) Other Things Does The PTCU Do?
*Acts As An Auxiliary Pump To Charge The left And Right Parking Brake
*To Prime The Engine Driven Pumps During Main Engine Starts
*Has The Capability Of Operating As A Hyd Generator To Provide 200 Amps Of Power To The Right Emer Bus In The Event Of Loss Of All Engine/APU Driven Generators
RSS (Rudder Standby System) Can Provide Hyd Pressure To What?
The Lower Rudder PCU In The Case Of A Loss Of Pressure From System A
What Is The RSS Powered By?
Left Emer Bus, With Monitoring And Control Provided By The Left Hyd PCB
How Many Accumulators Are There in The Hyd System?
9
What Type Of Reservoirs Are The Hyd Reservoirs?
BootStrap Type To Prevent Cavitation At The EDP
