[Tarig Elsheikh]

أخواني الكرام لرغبة الكثيرين وتشجيعهم لي سأواصل اليوم سلسلة جدد معلواتك وسنتناول اليوم في أسئلتنا منظومة الهيدوروليك في الـــــ A-320 أتمنا أن تفيدنا في أسترجاع ولو بعض المعلومات.

Hydraulic System /A-320

1- Fluid can be transferred between hydraulic systems.

• True
• False

2- Which hydraulic systems have engine driven *****?

• Green and blue.
• Green and yellow.
• Blue and yellow.

3- The Load Alleviation Function (LAF) accumulators are pressurized by which hydraulic systems?

• Green and blue.
• Green and yellow.
• Blue and yellow.

4- The RAT pressurizes the Blue hydraulic system to approximately ______ psi.

• 1500
• 2500
• 3000
• 3500

5- How many ***** has the yellow system to provide pressure (not counting the PTU)?

• 1
• 2
• 3
• 4

6- The hand pump supplies yellow system pressure to the:

• Normal brakes.
• Alternate brakes
• Passenger doors.
• Cargo doors.

7- It is possible to pressurize the green hydraulic system on the ground via the PTU when the parking brake is set.

• True
• False

8- The Eng Pump Fault light extinguishes when the engine pump switch is selected to off except for:

• Reservoir low level.
• Pump low pressure.
• An overheat.

9- With the airplane on the ground and the blue electric pump switch in AUTO; the blue pump will be energized when:

• One engine is running.
• The BLUE PUMP OVRD switch has been pressed.
• First two statements are correct .

10- The PTU Fault light illuminates when the:

• PTU is inoperative.
• Green or yellow reservoir has low air pressure.
• PTU pump has overheated.

11- The PUMP identification number on the ECAM HYD page becomes amber when:

• System pressure is below 1450 psi.
• N2 is below idle.
• The reservoir level is low.

12- The _____ hydraulic system provides power for gear extension/retraction.

• Yellow.
• Blue
• Green

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:

• Greater than 260 KIAS.
• Greater than 230 KIAS.
• Less than 260 KIAS.
• Less than 230 KIAS

14- Autobraking is initiated by:

• Strut compression.
• Reverser action.
• Ground spoiler extension command.

15- The alternate brake system has the same capabilities as normal brakes except:

• Anti-skid is inoperative.
• Autobrakes are inoperative.
• Both first statements are correct

16- When using the alternate brake system on accumulator pressure only; the accumulator supplies:

• Partial brakes.
• At least seven full brake applications.
• Alternate brakes with antiskid.

17- The maximum degrees of nosewheel steering available when using the handwheel is ______.

• +/- 60
• +/- 75
• +/- 95
• +/- 105

18- The green DECEL light on the Autobrake switch illuminates when the actual airplane deceleration corresponds to ______ % of the selected rate.

• 80
• 95
• 100
• 110

19- The brakes pressure indication on TRIPLE PRESSURE INDICATOR reads which system pressure?

• Yellow
• Blue
• Green

20- To extend the landing gear with the Gravity Extension Handcrank requires _______ turns of the handle.

• 3 counter-clockwise
• 2 counter-clockwise
• 3 clockwise

21- The aircraft's three hydraulic systems are normally pressurized by:

• Two engine driven ***** and one electric pump.
• Two electric ***** and one PTU.
• Two electric ***** and one engine driven pump.
• Two electric ***** and two engine driven *****.

22- When will the yellow system electric pump operate? (AC power is available).

• During the second engine start.
• When the first engine MASTER switch is moved to the ON position.
• If any N2 RPM is less than 45%.
• When the yellow electric system ELEC PUMP push button is selected to ON or the ground crew activates a cargo door switch.

23- What are the major equipment losses with loss of Green system?

• Speed Brakes.
• Nosewheel steering, Autobrakes.
• Alternate Brakes.
• The upper and lower rudders.

24- The hydraulic PTU will activate if:

• A significant pressure loss occurs in any of the three hydraulic systems.
• A significant pressure loss occurs in the green or yellow hydraulic system.
• Both are correct.

25- After extending the RAT, is it possible to check its position and status?

• Check to see if the blue system ELEC PUMP FAULT light is not illuminated.
• Yes, select the ECAM ELEC page.
• Yes, select the ECAM HYD page.
• No. It is not possible.

26- The RAT is capable of powering a pump which will pressurize:

• Only the blue system.
• All systems.
• The blue and yellow system.
• The blue and green system.

27- How is the yellow hydraulic system pressurized?

• An engine driven pump, an electric pump, the PTU using the green system and, for the cargo doors only, a hand pump.
• An engine driven pump, electric pump, the PTU using the blue system and, for the cargo doors only, a hand pump.
• An engine driven pump, an electric pump, and the PTU using the green system.

28- When will normal operation of the BLUE system hydraulic pump begin?

• During the first engine start.
• When the first engine MASTER switch is moved to the ON position.
• Only when the RAT is deployed.
• After both engines are started.

29- The PTU comes into action automatically when the differential pressure between the GREEN and the YELLOW systems is greater than ______ psi.

• 300.
• 500.
• 650.
• 700.

30- When will the yellow system electric pump operate? (AC power is available)

• During the second engine start.
• When the yellow electric system ELEC PUMP push button is selected to ON or the ground crew activates a cargo door switch.
• If any N2 RPM is less than 45%.
• When the first engine MASTER switch is moved to the ON position.

31- What is the normal pressure in the hydraulic system?

• 500 psi.
• 1,000 psi.
• 3,000 psi.
• 2,000 psi

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.

• No. You have to call the mechanics.
• The PTU has been shutoff
• The PTU will not work until the second engine has been started.

33- You get a G RSVR OVHT message. Why does the ECAM procedure ask you to switch the PTU off first?

• To prevent the hot hydraulic fluid from being transferred to the YELLOW system.
• To depressurize the YELLOW and GREEN systems.
• To prevent the BLUE system from pressurizing the GREEN system.
• To prevent the PTU from pressurizing the GREEN system

34- For hydraulic system malfunctions, when will the RAT deploy?

• Automatically with the failure of both the green and blue hydraulic systems.
• Automatically with the failure of both the green and yellow hydraulic systems.
• Only when the guarded RAT MAN ON push button is selected by the crew.
• When airspeed drops below 100 knots with the gear up.

35- What does the RAT MAN ON switch do?

• Extends RAT, pressurizes BLUE system, starts Emergency Generator.
• Extends RAT, must push RAT MAN ON again to pressurize BLUE system.
• Extends RAT, pressurizes GREEN system, starts Emergency Generator.
• Extends RAT, pressurizes BLUE system, does not start Emergency Generator.

36- Describe the PTU status with a green system reservoir overheat, low pressure or low fluid level.

• The PTU will be inhibited
• The crew must select the PTU ON.
• The PTU fault light will remain illuminated as long as the problem exists. The PTU should be selected OFF.
• The crew must select the PTU OFF then ON

37- During engine start up, when is the BLUE hydraulic system pressurized?

• As soon as the PTU is turned on.
• As soon as the BLUE electric pump is manually turned on.
• Automatically after first engine start.
• As soon as the engine master switch is set to IGN/START

38- If you lost the GREEN system, what equipment is lost?

• Reverser 1 and gear retraction.
• Reverser 1, gear retraction and nose wheel steering.
• Reverser 2, gear retraction, cargo doors and nose wheel steering.
• Reverser 2 and gear retraction.

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.

• True.
• False.

40- If you lost the YELLOW system, what equipment is lost?

• Reverser 2
• Parking brake accumulator recharging
• Cargo door.
• All of the above.

41- On the hydraulic quantity indicator what does the amber level indicate?

• The warning level.
• The reservoir contents
• The normal filling level
• The temperature of the hydraulic fluid.

42- What does a PTU FAULT light indicate?

• GREEN or YELLOW reservoir overheat.
• GREEN or YELLOW reservoir low air pressure.
• GREEN or YELLOW reservoir low level..
• All of the above.

43- If you lost the BLUE system, what equipment is lost?

• The Emergency generator.
• Cargo door
• Nose wheel sterring.
• All of the above.

44- All hydraulic systems have a fire shutoff valve.

• True.
• False.

Each of the GREEN and YELLOW systems has a fire shutoff valve in its upstream of its engine driven pump.

45- What is the signification of an amber RAT indicator (ECAM HYD page)?

• The RAT is uncorrectly stowed.
• The RAT is not stowed.
• Pressure for stowing the RAT has been applied, or the RAT pump is not available.

46- How can the pilot switch off the Fire Shut Off Valves?

• By de-pressing the Hydraulic Shut Off Switches.
• By selecting the Hydraulic Valve Switch to the \"Closed\" position
• By de-pressing the Engine Fire Swithces

The Answers is :-
1/b,2/c,3/b,4/b,5/c,6/d,7/a,8/c,9/c,10/b,11/b,12/c,13/a,14/c,15/c,16/b,17/b,18/a,19/a,20/c,21/a,22/d,23/b,24/b,25/c,26/a,27/a,28/a,29/b,30/b,31/c,32/c,33/d,34/c,35/d,36/c,37/c,38/b,39/a,40/d,41/a,42/d,43/a,44/b,45/c,46/c

مــــع خــــالــــص أمنيـــــاتي




المصــــــــــــــــــــــــــــــــــــــــــــــ ــــــــــــــدر

[s_m_k_1]

الله يعطيك العافية

مع التحيه

[libyan-ame]

أخي طارق الشكر الجزيل لهذا الجهد المميز


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[iraqsky]

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[فرعون101]

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[عماد المشهداني]

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