Chapter 30Ice and Rain Protection.docx
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Chapter 30Ice and Rain Protection.docx
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Chapter30IceandRainProtection
Chapter30IceandRainProtection
30IceandRainProtection
WASTEWATERDRAINMASTHEATINGMAYBETESTED:
AttheWasteServicePanel.
ThroughtheWaterServicingComputer.
ThroughtheCabinIntercommunicationsDataSystem(CIDS)ontheProgrammingandTestPanel(PTP).
C
30IceandRainProtection
THEWINGANTI-ICEVALVEINDICATIONISDISPLAYED:
OntheBLEEDpageanytimethevalveisopen.
OntheBLEEDpagewiththeaircraftinflightonly.
OntheBLEEDpagewiththevalveopenorclosed.
A
30IceandRainProtection
FAILUREOFADRAINMASTHEATERORCONTROLUNITISINDICATED:
ByanECAMmessage.
OntheForwardAttendantPanel(FAP).
Byaredwarninglightinthecockpit.
B
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THEPOTABLEWATERSERVICEPANELANTI-ICESYSTEMISAVAILABLEWHEN:
ItisselectedONfromthecockpit
Theaircraftiselectricallypowered
Iceisdetectedbytheicedetector
B
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IFTHERAINREPELLENTFLUIDGETSONTHEA/CSTRUCTURE:
Washatthenextoverhaul.
Washitoffimmediatelywithsoapandwater.
Noactionisnecessary.
B
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IFTHEA/CISONGROUNDANDAWINGANTI-ICEVALVEREMAINSSTUCKOPENDURINGAWINGANTI-ICEVALVETEST,THEAIRFLOWMUSTBESTOPPED:
Topreventfueloverheatinthewing.
Topreventslatoverheatdamage.
Toreducenoiselevel.
B
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WHENTHEENGINEANTIICEVALVESAREOPEN:
Thevalvesolenoidsarede-energizedandtheZoneControllerdeterminesthebleeddemandfortheFADEC.
ThevalvepositionsignalgoesdirectlytotheFADECtostartthegroundtime-delayrelayof30seconds.
Thevalvesolenoidisenergizedandautomaticcontinuousignitionisswitchedontopreventflame-out.
A
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ARESTRICTORLOCATEDDOWNSTREAMFROMTHEWINGANTI-ICEVALVE:
Regulatesairflow.
Restrictsmoisturefromenteringthepiccoloducts.
Limitsairflowincaseofruptureofthedistributionduct.
C
30IceandRainProtection
IFTHEENGINEISRUNNING,ENGINEANTI-ICEVALVEOPENINGISCAUSEDBY:
Iceformationontheengineinletcowl.
Lossofelectricalpowertotheengineanti-icevalvesolenoid.
Icingconditionsdetected.
B
30IceandRainProtection
ENGINEANTI-ICEBLEEDAIRCIRCULATESTHROUGHTHEENGINEINLETCOWLANDISDISCHARGED:
Overboard.
Intothefanairstream.
Intothelowpressureturbinearea.
A
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THEENGINEANTI-ICEAIRISSUPPLIEDFROM:
AHighPressurecompressorstageoftheengine.
ALowPressureturbinestageoftheengine.
AHighPressureturbinestageoftheengine.
A
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INCASEOFELECTRICALPOWERFAILURETOTHEENGINEANTI-ICEVALVE,IFTHEENGINEISRUNNINGTHEVALVEWILL:
Close.
Open.
Mechanicallylockinitslastposition.
B
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THEWATERLINEANTI-ICESYSTEMFORAGIVENAREAINCLUDES:
Acontrolunit,twosensors,andmultipleheaters.
Acontrolunitandaheater.
Anicedetectorandaheater.
A
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THEWINDSHIELDHEATINGOPERATES:
Atlowpoweronthegroundanhighpowerinflight.
Athighpoweronthegroundandinflight.
Onlywhenicestartstoformonthewindshield.
A
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IFTHEAIRCRAFTISONGROUND,THETOTALAIRTEMPERATURE(TAT)PROBEHEATING:
Ispoweredat50%ofnormalpowerinflight.
Isnotavailable.
Ispoweredat75%ofpowerinflight.
B
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THEPROBE/WINDOWHEATSWITCHISATAUTO;THE"ON"LIGHTISEXTINGUISHED;PROBEHEATINGISAVAILABLEONGROUNDWHEN:
Atleastoneengineisrunning.
Noenginesarerunning.
Oneicedetectorsensesiceformation.
A
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EACHWASTEWATERDRAINMASTCONTROLUNIT:
Regulatesthetemperatureofitsassociateddrainmast.
SendsanECAMmessagefortheflightcrewtoturnONthedrainmastheat.
Onlymonitorsthedrainmastforlossofpower.
A
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WHENELECTRICALPOWERTOTHEWINGANTI-ICEVALVESOLENOIDISLOST,THEVALVEWILL:
Regulatetheairpressure.
Closeifitisopen.
Openifitisclosed.
B
30IceandRainProtection
THEWINGANTI-ICEVALVESARE:
Electricallycontrolledandpneumaticallyoperated.
Pneumaticallycontrolledandoperated.
Electricallycontrolledandoperated.
A
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THEWINGLEADINGEDGEANTI-ICEDSECTIONSARE:
Slats1,2and3.
Slats2,3and4.
Slats3,4and5.
C
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THECOMPLETEPROBEHEATSYSTEMINCLUDES:
Onecomputer.
Twocomputers.
Threecomputers.
C
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EACHWASTEWATERDRAINMAST:
Isonlypoweredinflight.
Hasabuilt-inicedetectorunit.
Hasitsowncontrolunit.
C
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THETOTALAIRTEMPERATURE(TAT)PROBEISHEATED:
Inflightbutnotontheground.
Onthegroundbutnotinflight.
Onlywhentheaircraftisinicingconditions.
A
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WHENAWINDSHIELDWIPERSELECTORISSETTOOFF:
Thewipercompletesonecycle,thenstops.
Thewiperstopsintheparkposition,liftedoffoftheA/Cstructure,atthewindshieldlowerpart.
Thewiperstopsafter5seconds.
B
30IceandRainProtection
THEWINDOWHEATSYSTEMCOMPRISES:
Asinglecomputer.
Twocomputers,oneforthesidewindowsandoneforthewindshields.
Twocomputers,onefortheleftsidewindowsandleftwindshield,andoneforrightsidewindowsandrightwindshield.
C
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DETECTIONOFEXTREMEWINDSHIELDTEMPERATUREORFAILUREOFTHEASSOCIATEDSENSORCAUSES:
AnECAMwarningandautomaticcutoffoftheassociatedwindshieldheating.
Controlofthefaultywindshieldtoswitchtoasecondarycomputer.
NoindicationonECAM.
A
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ANENGINEANTI-ICE(A.ICE)VALVEWARNINGMESSAGEISDISPLAYEDONTHEEWD:
Onlyifonevalvefailedclosed.
Ifbothvalvesfailedopen.
Ifavalvefailedeitherclosedoropen.
C
30IceandRainProtection
EACHWINDSHIELDWIPERISCONTROLLEDBY:
Adedicatedcomputer.
Amomentarypushbutton.
Arotaryselector.
C
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THEDUALADVISORYICEDETECTIONSYSTEMPROVIDESICEDETECTIONWARNINGSWHEN:
TotalAirTemperature(TAT)isnegative.
TheA/Cisinflight,above1500feetandTATisbelow8癈.
TheA/Cisinflight,above1000feetandTATisbelow3癈.
A
30IceandRainProtection
ONEACHWING,HOTAIRISPROVIDEDFORTHEANTI-ICINGOF:
Theinboardslat.
Alltheslats.
Thethreeoutboardslats.
C
30IceandRainProtection
THEDRAINMASTICEPROTECTIONSYSTEMCANBETESTEDFROM:
TheMCDUandthetestpushbuttoninthecockpit.
ThePTPandthedrainmastcontrolunittestpushbutton.
ThetestpushbuttoninthecockpitandthePTP.
B
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WINGICEPROTECTIONISPROVIDEDBY:
Hotairbledfromtheengine.
Electricalheaters.
Hotairandelectricalheaters.
A
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THEWINDOWHEATCOMPUTERS(WHCS)ARE:
LinkedtotheCentralizedFaultDisplayInterfaceUnit(CFDIU).
LinkedtotheProbeHeatComputers(PHCs)
DirectlylinkedtotheCFDIUviatheZoneController(ZC).
A
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PROBEICEPROTECTIONISACHIEVEDBY:
Hotair.
Electricalheating.
Hotairandelectricalheating.
B
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THEWINGANTI-ICEVALVES:
MustbeselectedONmanually.
Openautomatically.
Mustbeoperationalfordispatch.
A
30IceandRainProtection
ENGINEANTIICEISSUPPLIEDFROM:
Thepneumaticsystem.
TheengineHPcompressor.
TheengineLPcompressor.
B
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THEILLUMINATIONOFANENGINEANTI-ICEFAULTLIGHTMAYINDICATETHATTHE:
PushbuttonisintheONpositionandthevalveisopen,indicatinganoverheatcondition.
PushbuttonisintheONpositionandthevalveisopen,indicatinganoverpressurecondition.
PushbuttonisintheONpositionandthevalveisintransitorclosed.
C
30IceandRainProtection
WINGANTI-ICEVALVEFAILUREINFORMATIONISSTOREDINTHEMEMORYOFTHE:
ZoneController
BleedMonitoringComputer1
BleedMonitoringComputer2
A
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THECOMPUTERSWHICHINTERFACEWITHTHEWINGANTI-ICESYSTEMARE:
TheEngineInterfaceUnit(EIU),theSystemDataAcquisitionConcentrator(SDAC)andtheZoneController(ZC).
TheSystemDataAcquisitionConcentrator(SDAC),theWindowHeatComputer(WHC)andtheZoneController(ZC).
TheZoneController(ZC),theWindowHeatComputer(WHC)andtheEngineInterfaceUnit(EIU).
A
30IceandRainProtection
FAILUREDATAOFTHEWINGANTI-ICESYSTEMISSTOREDBY:
PackControllers1and2.
TheEngineInterfaceUnits(EIUs).
TheZoneController.
C
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DURINGICEDETECTIONORICEDETECTORSFAILURE,THEMESSAGEDISPLAYEDONTHEEWDISOF:
Class1type.
Class2type.
Class3type.
A
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THEZONECONTROLLER(ZC)ACQUIRES:
The"valvenotclosed"positioninformation.
The"valvenotopened"positioninformation.
The"valvenotclosed?
and"valvenotopened"positioninformation.
A
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THERAINREPELLENTSYSTEMISINHIBITED:
Inflight.
Onground.
Onground,whentheenginesareshutdown.
C
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THEDRAINMASTHEATINGISCONTROLLED:
AutomaticallybytheCIDS(CabinIntercommunicationsDataSystem).
Thecontrollermaintainsthetemperaturebetween5and15deg.C.
ByaswitchontheForwardAttendantPanel(FAP).
B
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INCASEOFONESIDERAINREPELLENTSYSTEMFAILURE:
Onlytheconcernedsidefails.
TheCAPTsideisstilloperative.
Bothsidesfail.
A
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