HYDRAULICS Flashcards
1 | Can the aircraft be flown with a loss of all hydraulic systems? [ FCOM-DSC-27-10-10 ]
º No – you must have at least one
2 | What occurs when you press the RAT MAN ON pushbutton? [ FCOM-DSC-24-10-30-30 ]
º The RAT extends providing pressure to the BLUE hydraulic system
3 | Does the PTU transfer hydraulic fluid? [ FCOM-DSC-29-10-10 ]
º No
4 | How many hydraulic pumps are in the GREEN system? [ FCOM-DSC-29-10-20 ]
º 1 Engine
º 1 PTU
5 | How many hydraulic pumps are in the BLUE system? [ FCOM-DSC-29-10-20 ]
º 1 Electric
º 1 RAT
6 | How many hydraulic pumps are in the YELLOW system? [ FCOM-DSC-29-10-20 ]
º 1 Engine
º 1 Electric
º 1 PTU
º 1 Hand pump
7 | When does the BLUE ELEC PUMP operate? [ FCOM-DSC-29-20 ]
º After the first engine is started
º If the BLUE PUMP OVRD pb on the MAINTENANCE panel has been pressed with no engine running
8 | What is normal system hydraulic pressure? [ FCOM-DSC-29-10-10 ]
º 3000 ± 200 PSI
9 | Does the RAT automatically deploy with the loss of BLUE hydraulic pressure? [ FCOM-DSC-29-10-20 ]
º No, it must be deployed manually by the RAT MAN ON pushbutton
10 |If the ACCU PRESS indicator is low and an external walkaround is to be completed, what should you do?
[ FCOM-PRO-NOR-SOP-04 ]
º Obtain ground clearance then turn ON the YELLOW ELEC PUMP to pressurize the accumulator
11 |What condition will cause the PTU to operate when the pushbutton is in AUTO? [ FCOM-DSC-29-20 ]
º A difference of 500 PSI between GREEN and YELLOW hydraulic systems
12 |Can the YELLOW ELEC PUMP run the PTU? [ FCOM-DSC-29-10-20 ]
º Yes
13 |When is the PTU inhibited?
[ FCOM-DSC-29-10-20, FCOM-DSC-29-20 ]
º PTU pushbutton OFF
º First engine start
º Parking brake is SET and only one ENG MASTER switch is ON
º NWS in towing position and parking brake RELEASED
º Cargo door operation (PTU is also inhibited for 40 seconds after the end of cargo door operation)
14 |If the ECAM actions lead you to turn OFF the PTU for a Reservoir Overheat, will the FAULT light go out?
[ FCOM-DSC-29-20 ]
º No, not until the overheat subsides
15 |If the FAULT light in the PTU pushbutton is ON, are there any other indications on the HYD Panel?
[ FCOM-DSC-29-20 ]
º Yes – FAULT light illuminated in the respective ENG PUMP pushbutton
16 |Name several items that run from only the GREEN system.
[ FCOM-DSC-29-10-30 ]
º Landing gear
º Normal brakes
º Slats and flaps
º Engine 1 reverser
17 |Name several items that run from only the YELLOW system.
[ FCOM-DSC-29-10-30 ]
º Nosewheel steering
º Alternate brakes
º Parking brake
º Cargo doors
º Engine 2 reverser
18 |List several items that are powered by the BLUE system. [ FCOM-DSC-29-10-30 ]
º Slats
º Emergency generator
19 |What does an amber FAULT light in the PTU pushbutton indicate (OLL)?
[ FCOM-DSC-29-20 ]
º O - Overtemp in reservoir
º L - Low air pressure in the reservoir
º L - Low quantity in the reservoir
20 |What does an amber FAULT light in the ENG PUMP pushbutton indicate (POLL)? (FCOM-DSC-29-20)
º P - Pump pressure low
º O - Overtemp in reservoir
º L - Low air pressure in the reservoir
º L - Low quantity in the reservoir
21 |What does a FAULT light in the BLUE or YELLOW ELEC PUMP pushbutton indicate (POLLO)?
[ FCOM-DSC-29-20 ]
º P - Pump pressure low
º O - Overtemp in reservoir
º L - Low air pressure in the reservoir
º L - Low quantity in the reservoir
º O - Overheat of pump
22 |What is the function of the hydraulic priority valves? [ FCOM-DSC-29-10-10 ]
º Hydraulic power to the flaps, slats, landing gear, and emergency generator is cut off if pressure drops below
a predetermined value (high demand items)
23 |What is the purpose of the hand pump?
[ FCOM-DSC-29-10-20 ]
º To provide Yellow hydraulic pressure for cargo door operation
