發(fā)動(dòng)機(jī)航線維護(hù)知到智慧樹章節(jié)測(cè)試課后答案2024年秋中國(guó)民用航空飛行學(xué)院

發(fā)動(dòng)機(jī)航線維護(hù)知到智慧樹章節(jié)測(cè)試課后答案2024年秋中國(guó)民用航空飛行學(xué)院緒論單元測(cè)試

COMACARJ21-700airlinerisequippedwith_______turbofanengine.（）

A:CFM56-7BB:CJ-1000C:Leap-1CD:CF34-10A

答案:CF34-10A

第一章單元測(cè)試

ThedescriptioninChapter73ofAMMisabout().

A:AirSystem

B:EngineFuelandControlSystem

C:ExhaustSystem

D:OilSystem

答案:EngineFuelandControlSystem

HowmanyenginemountsdoestheCFM56-3have?（）。

A:4

B:3

C:2

D:1

答案:2

CFM56-3isa_______turbofanengine.()

A:Lowbypass,dualrotor

B:Highbypass,dualrotor

C:Lowbypass,threerotor

D:Highbypass,threerotor

答案:Highbypass,dualrotor

ThedataplatehasNOTthedataof（）。

A:TCNumber

B:Airframetype

C:Enginemodelnumber

D:Thrustratings

答案:Airframetype

TheCFM56-3enginesupplies____fortheBoeing737-300/-400/-500aircraft.()

A:thrust,electric,hydraulic,pneumatic

B:thrust,liftforce,hydraulic,pneumatic

C:thrust,bleedair,hydraulic,pneumatic

D:thrust,electric,hydraulic,fuelandoil

答案:thrust,electric,hydraulic,pneumatic

第二章單元測(cè)試

WhichcomponentonCFM56-3engineproducesthemostthrust?()

A:Fan

B:Combustor

C:Exhaustnozzle

D:Turbine

答案:Fan

Theaerodynamicstationof12onCFM56-3engineis().

A:Theprimaryairinlet

B:Theengineinlet

C:Thesecondaryairinlet

D:Theinletofbooster

答案:Thesecondaryairinlet

WhichbearingcanholdtheaxiallyloadoftheN2rotor?()

A:No.2ballbearing

B:No.4rollerbearing

C:No.1ballbearing

D:No.3ballbearing

答案:No.3ballbearing

WhatbearingsonCFM56-3enginearerollerbearing?()

A:No.2,No.4andNo.5bearings

B:No.2,No.3andNo.4bearings

C:No.1,No.2andNo.3bearings

D:No.3,No.4andNo.5bearings

答案:No.2,No.4andNo.5bearings

Thepowersourcefordrivingfanandboosterrotorisfrom().

A:HPT

B:LPT

C:Air-drivinggearbox

D:CSDassembly

答案:LPT

TheairusedforCFM56-3HPTbladescoolingis().

A:CDPair

B:HPC5thair

C:Boosterdischargeair

D:HPC4thair

答案:CDPair

HowmanyfanbladesdoesCFM56-7Benginehave?()

A:18

B:36

C:38

D:24

答案:24

WhichbalancingscrewfortherebalanceofCFM56-3engineisthelightest?()

A:P07

B:P01

C:P08

D:P06

答案:P07

InthefollowingaccessorypadsonCFM56-3engine,whichoneneedtousecarbonseal?()

A:Airstarterandhydraulicpump

B:Controlalternatorandfuelpump

C:Lubeunitandfuelpump

D:Lubeunitandhydraulicpump

答案:Airstarterandhydraulicpump

HowmanystagesofLPTdoesCFM56-3enginehave?()

A:3

B:2

C:1

D:4

答案:4

第三章單元測(cè)試

Inthefollowingdescriptions,whichoneisNOTthefunctionofMEConCFM56-3engine?()

A:SchedulestheLPTCCvalve

B:Schedulesfuelflow

C:SchedulesVSV’sandVBV’spositions

D:SchedulestheHPTCCvalve

答案:SchedulestheLPTCCvalve

What’sthemainpurposeoftheservofuelheateronCFM56-3engine?()

A:Todecreasethescavengeoiltemperature

B:Todecreasethesupplyoiltemperature

C:Toincreasetheservofueltemperature

D:Toincreasethecombustionfueltemperature

答案:Toincreasetheservofueltemperature

InthefollowingfuelnozzlesonCFM56-3engine,whichonemusthavearicherprimaryflowpath?()

A:fuelnozzlepositions1and2

B:fuelnozzlepositions1and20

C:fuelnozzlepositions4and5

D:fuelnozzlepositions14and15

答案:fuelnozzlepositions14and15

What’stheFail-SafesettingofT2.5sensoronCFM56-3engine?()

A:760mmHg/15℃

B:59℉/15℃

C:36℉/0℃

D:14.7PSI/15℃

答案:59℉/15℃

TheCFM56-3enginesymptomsforaT2.5coldshiftare().

A:PossiblycannotgettakeoffpowerwithhighN2andEGT

B:VSVtrackclosedVBVtrackopen

C:PossibleN1overshoot/bloomontakeoff

D:Slowstartsandaccelerations

答案:PossibleN1overshoot/bloomontakeoff

T2.0sensoronCFM56-3enginesuppliesfuelpressure_________totheMECinproportiontotheFIT.()

A:P6-Pb

B:Pc-Pb

C:P7-Pb

D:P7-P6

答案:P7-Pb

WhichofthefollowingsignalsgoesintoPMCthroughtheJ2connector?()

A:PS12

B:N1andT12

C:Groundsupportequipment

D:Electricalpowerfromcontrolalternator

答案:Electricalpowerfromcontrolalternator

HowmanythrottlepositionsdoesB737-300aircrafthavewhenCFM56-3engineisatidlespeed?()

A:Three

B:Onlyone

C:Two

D:Four

答案:Onlyone

HowthePMCofCFM56-3engineknowsthethrustleverangle?()

A:aLVDTincockpitsensesthePLAandsendsanelectricalsignaldirectlytoPMC

B:aRVDTinMECsensesthePLAandsendsanelectricalsignaltoPMC

C:aRVDTincockpitsensesthePLAandsendsanelectricalsignaldirectlytoPMC

D:N2controlalternatorontheAGBsendsanelectricalpowertoPMC

答案:aRVDTinMECsensesthePLAandsendsanelectricalsignaltoPMC

WhatequipmentcantransfertheelectricalsignalfromPMCintoservofuelsignalinMECofCFM56-3engine?()

A:AtorquemotoronMEC

B:ApilotvalveinMEC

C:AnEHSVonMEC

D:SixEHSVsonHMU

答案:AtorquemotoronMEC

第四章單元測(cè)試

HowmanyigniterplugsdoesCFM56-3enginehave?()

A:2

B:5

C:3

D:4

答案:2

TheCONTpositionsuppliescontinuouspowertotheignitionexcitersduring().

A:flight

B:aircraftontheground

C:enginerestartintheflight

D:enginestartontheground

答案:flight

WhichoneisTRUEinthefollowingdescriptionsabouttheignitionsystemofCFM56-3engine?()

A:Onlyneedonegasketcontrolsthedepththeigniterplugsgointothecombustionchamber.

B:Donotapplygreasetothethreadsontheignitionleadendoftheigniterplug.

C:Thereisnoneedtoprovidecoolingairaroundtheignitionleadstodecreasetemperature

D:TheLow-energyexciteroutputis1sparkpersecond,1joulesperspark.

答案:Donotapplygreasetothethreadsontheignitionleadendoftheigniterplug.

OnCFM56-3engine,high-energyexciteroutputis().

A:1sparkspersecond,1joulesperspark

B:1sparkspersecond,2joulesperspark

C:2sparkspersecond,2joulesperspark

D:2sparkspersecond,1joulesperspark

答案:2sparkspersecond,2joulesperspark

WhataretheinputoftheignitionexcitersoftheCFM56-3?

A:

14－20KVinput.

B:

115VACinput.

C:230VACinput.

D:28VDC.

答案:

115VACinput.

第五章單元測(cè)試

HowmanyVSVactuatorsdoesCFM56-3have?()

A:20

B:10

C:2

D:1

答案:2

What’sthefeedbackequipmentofVSVandVBV’spositiontotheMECofCFM56-3engine?()

A:LVDTandelectricalcable

B:RVDTandelectricalcable

C:Resolverandflexiblecable

D:Arm,leverandflexibleshaft

答案:Arm,leverandflexibleshaft

WhenCFM56-3engineisstartingoratidlespeedcondition,theVBVdoorsis().

A:opened

B:atanypositon

C:halfopened

D:closed

答案:opened

TheVBVsystemofCFM56-3engineisoperatedby().

A:theoilscavengepump

B:thefuelgearmotor

C:twofuelactuators

D:thehydraulicpump

答案:thefuelgearmotor

WhentheCFM56-3engineisrunningatCRUISE,whereisthecoolingairfortheHPTCCfrom?()

A:9thHPC

B:CBP

C:5thHPC

D:5th+9thHPC

答案:5thHPC

第六章單元測(cè)試

TherearvibrationsensorofCFM56-3engineislocatedon().

A:NO.1bearingsupport

B:the3o’clockpositionoffanframe

C:NO.2bearingsupport

D:the12o’clockpositionofturbineframe

答案:the12o’clockpositionofturbineframe

WhichspeedsignalsofCFM56-3enginedoesAVMsystemneed?()

A:AVMsystemdoesn’tneedspeedsignals

B:N1

C:N1andN2

D:N2

答案:N1andN2

TheEGTindicatingsystemsuppliestheflightcompartmentwiththeEGTasthegasflowsthroughthestage2LPTnozzle.()

A:average

B:lowest

C:highest

D:true

答案:average

HowmanythermocouplesdoestheEGTindicatingsystemofCFM56-3enginehave?()

A:9

B:11

C:8

D:10

答案:9

WhichvibrationsignalwillbesenttotheflightcompartmentforeachengineonB737-300aircraft?()

A:thelowestvibrationsignal

B:thecore’svibrationsignal

C:thefan’svibrationsignal

D:thestrongestvibrationsignal

答案:thestrongestvibrationsignal

第七章單元測(cè)試

InthefollowingdescriptionsabouttheoilsystemofCFM56-3engine,whichoneisTRUE?()

A:Theoiltankisventedtotheambientairdirectly

B:Theoilquantitycanbegotfromthesightglassoftheoiltank

C:TheoilsumpsareDry-Sumpdesigned

D:Noneoftheabove

答案:TheoilsumpsareDry-Sumpdesigned

WhatairsourceisusedtopressurizerearsumpinCFM56engines?()

A:Boosterdischargeair

B:Fandischargeair

C:CBPair

D:the5thbleedairfromHPC

答案:Boosterdischargeair

TheoilcoolerofoilsystemonCFM56-3enginearelocatedin().

A:theoiltank

B:theAGB

C:theoilsupplycircuit

D:theoilscavengecircuit

答案:theoilscavengecircuit

HowmanyoilpumpsdoesCFM56-3’soilsystemhave?()

A:2

B:1

C:4

D:3

答案:4

OnCFM56-3engine,theoiltemperatureindicatesthepressureof().

A:Oilscavenge.

B:Oilsupply.

C:Oiltank.

D:Oilventing.

答案:Oilscavenge.

第八章單元測(cè)試

Howlongcanbethestarteroperatedcontinuouslyupto?()

A:threeminutes

B:fourminutes

C:twominutes

D:oneminute

答案:twominutes

DuringstartingofCFM56-3engine,thelimitformaximumexhaustgastemperature(EGT)is().

A:600℉

B:725℃

C:725℉

D:600℃

答案:725℃

DuringtakeoffofCFM56-3engine,thelimitformaximumexhaustgastemperature(EGT)is().

A:600℃

B:930℃

C:930℉

D:600℉

答案:930℃

EGTistheshortfor().

A:Exhaustgroundthrust

B:Enginegastemperature

C:Exhaustgastemperature

D:Enginegroundthrust

答案:Exhaustgastemperature

WhenCFM56-3engineisatidlespeed,theminimumoilpressureis().

A:30PSI

B:13PSI

C:23PSI

D:27PSI

答案:13PSI

第九章單元測(cè)試

Inthefollowingdescriptions,whichoneisthefunctionofHandCrankingPadintheAGBofCFM56-3engine?（）

A:Let’stheoperatorrotatethecoreduringstartB:BalancethelowpressuresystemC:Let’stheoperatorrotatethecoreduringmaintenanceD:Let’stheoperatorrotatethefanrotorduringmaintenance

答案:Let’stheoperatorrotatethecoreduring