Hydraulic
XIII of XVIII
Q 01: Fluid can be transferred between hydraulic systems.
A: True
B: False
Q 02: Which hydraulic systems have engine driven pumps?
A: Green and blue.
B: Green and yellow.
C: Blue and yellow.
Q 03: The Load Alleviation Function (LAF) accumulators are pressurized by which hydraulic systems?
A: Green and blue.
B: Green and yellow.
C: Blue and yellow.
Q 04: The RAT pressurizes the Blue hydraulic system to approximately ______ psi.
A: 1500
B: 2500
C: 3000
D: 3500
Q 05: How many pumps has the yellow system to provide pressure (not counting the PTU)?
A: 1
B: 2
C: 3
D: 4
Q 06: The hand pump supplies yellow system pressure to the:
A: Normal brakes.
B: Alternate brakes
C: Passenger doors.
D: Cargo doors.
Q 07: It is possible to pressurize the green hydraulic system on the ground via the PTU when the parking brake is set.
A: True
B: False
Q 08: The Eng Pump Fault light extinguishes when the engine pump switch is selected to off except for:
A: Reservoir low level.
B: Pump low pressure.
C: An overheat.
*Note – The fault light monitors overheat and stays on until the overheat condition exists.
Q 09: With the airplane on the ground and the blue electric pump switch in AUTO; the blue pump will be energized when:
A: One engine is running.
B: The BLUE PUMP OVRD switch has been pressed.
C: First two statements are correct.
Q 10: The PTU Fault light illuminates when the:
A: PTU is inoperative.
B: Green or yellow reservoir has low air pressure.
C: PTU pump has overheated.
Q 11: The PUMP identification number on the ECAM HYD page becomes amber when:
A: System pressure is below 1450 psi.
B: N2 is below idle.
C: The reservoir level is low.
Q 12: The _____ hydraulic system provides power for gear extension/retraction.
A: Yellow.
B: Blue
C: Green
Q 13: As long as the landing gear lever is up a hydraulic safety valve closes to cut off the hydraulic supply to the gear when the airspeed is:
A: Greater than 260 KIAS.
B: Greater than 230 KIAS.
C: Less than 260 KIAS.
D: Less than 230 KIAS
Q 14: Autobraking is initiated by:
A: Strut compression.
B: Reverser action.
C: Ground spoiler extension command.
Q 15: The alternate brake system has the same capabilities as normal brakes except:
A: Anti-skid is inoperative.
B: Autobrakes are inoperative.
C: Both first statements are correct
*Note – There are two modes of Alternate braking with Anti-skid (Yellow hydraulic and BSCU are available) amd Without anti-skid when Both Green and Yellow hydraulics has low pressure. In both modes Auto brake is inoperative.
Q 16: When using the alternate brake system on accumulator pressure only; the accumulator supplies:
A: Partial brakes.
B: At least seven full brake applications.
C: Alternate brakes with antiskid.
Q 17: The maximum degrees of nosewheel steering available when using the handwheel is ______.
A: +/- 60
B: +/- 75
C: +/- 95
D: +/- 105
Q 18: The green DECEL light on the Autobrake switch illuminates when the actual airplane deceleration corresponds to ______ % of the selected rate.
A: 80
B: 95
C: 100
D; 110
Q 19: The brakes pressure indication on TRIPLE PRESSURE INDICATOR reads which system pressure?
A: Yellow
B: Blue
C: Green
Q 20: To extend the landing gear with the Gravity Extension Handcrank requires _______ turns of the handle.
A: 3 counter-clockwise
B: 2 counter-clockwise
C: 3 clockwise
Q 21: The aircraft’s three hydraulic systems are normally pressurized by:
A: Two engine driven pumps and one electric pump.
B: Two electric pumps and one PTU.
C: Two electric pumps and one engine driven pump.
D: Two electric pumps and two engine driven pumps.
Q 22: When will the yellow system electric pump operate? (AC power is available).
A: During the second engine start.
B: When the first engine MASTER switch is moved to the ON position.
C: If any N2 RPM is less than 45%.
D: When the yellow electric system ELEC PUMP push button is selected to ON or the ground crew activates a cargo door switch.
Q 23: What are the major equipment losses with loss of Green system?
A: Speed Brakes.
B: Nosewheel steering, Autobrakes.
C: Alternate Brakes.
D: The upper and lower rudders.
*Note – Autobrakes will be lost however NWS and Anti Skid is available through yeallow hydraulic system
Q 24: The hydraulic PTU will activate if:
A: A significant pressure loss occurs in any of the three hydraulic systems.
B: A significant pressure loss occurs in the green or yellow hydraulic system.
C: Both are correct.
*Note – Pressure difference > 500PSI between Green and Yellow.
Q 25: After extending the RAT, is it possible to check its position and status?
A: Check to see if the blue system ELEC PUMP FAULT light is not illuminated.
B: Yes, select the ECAM ELEC page.
C: Yes, select the ECAM HYD page.
D: No. It is not possible.
Q 26: The RAT is capable of powering a pump which will pressurize:
A: Only the blue system.
B: All systems.
C: The blue and yellow system.
D: The blue and green system.
Q 27: How is the yellow hydraulic system pressurized?
A: An engine driven pump, an electric pump, the PTU using the green system and, for the cargo doors only, a hand pump.
B: An engine driven pump, electric pump, the PTU using the blue system and, for the cargo doors only, a hand pump.
C: An engine driven pump, an electric pump, and the PTU using the green system.
Q 28: When will normal operation of the BLUE system hydraulic pump begin?
A: During the first engine start.
B: When the first engine MASTER switch is moved to the ON position.
C: Only when the RAT is deployed.
D: After both engines are started.
Q 29: The PTU comes into action automatically when the differential pressure between the GREEN and the YELLOW systems is greater than ______ psi.
A: 300.
B: 500.
C: 650.
D: 700.
Q 30: When will the yellow system electric pump operate? (AC power is available)'
A: During the second engine start.
B: When the yellow electric system ELEC PUMP push button is selected to ON or the ground crew activates a cargo door switch.
C: If any N2 RPM is less than 45%.
D: When the first engine MASTER switch is moved to the ON position.
Q 31: What is the normal pressure in the hydraulic system?
A: 500 psi.
B: 1,000 psi.
C: 3,000 psi.
D: 2,000 psi
Q 32: You are at the gate. You have started engine #2. Before starting engine #1, you notice that the PTU test has not been activated. Is it normal.
A: No. You have to call the mechanics.
B: The PTU has been shutoff
C: The PTU will not work until the second engine has been started.
Q 33: You get a G RSVR OVHT message. Why does the ECAM procedure ask you to switch the PTU off first?
A: To prevent the hot hydraulic fluid from being transferred to the YELLOW system.
B: To depressurize the YELLOW and GREEN systems.
C: To prevent the BLUE system from pressurizing the GREEN system.
D: To prevent the PTU from pressurizing the GREEN system
Q 34: For hydraulic system malfunctions, when will the RAT deploy?
A: Automatically with the failure of both the green and blue hydraulic systems.
B: Automatically with the failure of both the green and yellow hydraulic systems.
C: Only when the guarded RAT MAN ON push button is selected by the crew.
D: When airspeed drops below 100 knots with the gear up.
*Note – The RAT will also drop if AC BUS 1+2 lose power,
Q 35: What does the RAT MAN ON switch do?
A: Extends RAT, pressurizes BLUE system, starts Emergency Generator.
B: Extends RAT, must push RAT MAN ON again to pressurize BLUE system.
C: Extends RAT, pressurizes GREEN system, starts Emergency Generator.
D: Extends RAT, pressurizes BLUE system, does not start Emergency Generator.
*Note – The RAT MAN ON does start the generator however does not connect to the electrical network. That option is not included here therefore D is the best option.
Q 36: Describe the PTU status with a green system reservoir overheat, low pressure or low fluid level.
A: The PTU will be inhibited
B: The crew must select the PTU ON.
C: The PTU fault light will remain illuminated as long as the problem exists. The PTU should be selected OFF.
C: The crew must select the PTU OFF then ON
Q 37: During engine start up, when is the BLUE hydraulic system pressurized?
A: As soon as the PTU is turned on.
B: As soon as the BLUE electric pump is manually turned on.
C: Automatically after first engine start.
D: As soon as the engine master switch is set to IGN/START
Q 38: If you lost the GREEN system, what equipment is lost?
A: Reverser 1 and gear retraction.
B: Reverser 1, gear retraction and nose wheel steering.
C: Reverser 2, gear retraction, cargo doors and nose wheel steering.
D: Reverser 2 and gear retraction.
*Note – NWS is not lost when green hydraulic fails. The Yellow system provides pressure for NWS. Auto brakes are lost.
The following system would be rendered INOP
Spoilers 1+5
CAT 3 Dual
Auto Brakes
Normal Brakes
Landing Gear Retraction
Reverser 1
Yaw Damper 1
Q 39: Crew members can use a hand pump to pressurize the YELLOW system in order to operate the cargo doors when no electrical power is available.
A: True.
B: False.
Q 40: If you lost the YELLOW system, what equipment is lost?
A: Reverser 2
B: Parking brake accumulator recharging
C: Cargo door.
D: All of the above.
*Note – Yellow hydraulic failure the following systems are INOP:
Spoilers 2+4
CAT 3 Dual
NWS
Revereser 2
Cargo Door
Yaw Damper 2
Q 41: On the hydraulic quantity indicator what does the amber level indicate?
A: The warning level.
B: The reservoir contents
C: The normal filling level
D: The temperature of the hydraulic fluid.
Q 42: What does a PTU FAULT light indicate?
A: GREEN or YELLOW reservoir overheat.
B: GREEN or YELLOW reservoir low air pressure.
C: GREEN or YELLOW reservoir low level..
D: All of the above.
Q 43: If you lost the BLUE system, what equipment is lost?
A: The Emergency generator.
B: Cargo door
C: Nose wheel steering.
D: All of the above.
*Note – A loss of Blue Hydraulic system will render the following systems INOP
Spoiler 3
CAT 3 Dual
Emergency generator
Blue electric pump
Q 44: All hydraulic systems have a fire shutoff valve.
A: True.
B: False.
Note - Each of the GREEN and YELLOW systems has a fire shutoff valve in its upstream of its engine driven pump.
Q 45: What is the signification of an amber RAT indicator (ECAM HYD page)?
A: The RAT is incorrectly stowed.
B: The RAT is not stowed.
C: Pressure for stowing the RAT has been applied, or the RAT pump is not available.
*dunno if that is even possible
Q 46: How can the pilot switch off the Fire Shut Off Valves?
A: By de-pressing the Hydraulic Shut Off Switches.
B: By selecting the Hydraulic Valve Switch to the “Closed” position
C: By de-pressing the Engine Fire Switches
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