雨课堂学堂在线学堂云《Road Subgrade and Pavement Engineering（长安）》单元测试考核答案

第1题Selectpossibleroadstructuresfortheancientpostroads

A20cmblockstonesispavedonsubgradeB28cmcementconcretepavementand30cmHBMbasearebuiltonsubgradeC10cmasphaltpavementsurfaceand36cmHBMbasearebuiltonsubgradeDroadsarewithoutpavingsurfaces.正确答案：AD第2题SelectthepossiblejobpositionsinpavementengineeringADesignEngineerBConstructionEngineerCMaintenanceEngineerDResearcherorManager正确答案：DCBA第3题Selectthekeyserviceabilitiesofahighwaypavementintermsofbearingcapabilities

AStrengthandStiffnessBDurabilityCSmoothnessandSkiddingResistanceDStability正确答案：DA第4题SelectthekeyfactorsfordesigninganasphaltpavementstructureATrafficloadingandenvironmentalconditionsBMaterialsandfailurecriteriaCConstructionrequirementsDMaintenancerequirements正确答案：AB第5题Thereare___tiresforavehiclewhosefrontaxleistype-1axleandtherearaxleistype-5.A4B6C8D2第6题AccordingtotheChinesestandard,vehicleaxlesareclassifiedintoseventypes,thetype-1andtype-2axlesarethesingleaxles,type-3,type-4,andtype-5arethe______

axles,whiletype-6andtype-7arethe______axles.ATandem;TridemBSingle;TridemCTandem;SingleDTandem;Tandem第7题Trafficloadingisnotonlythepavementservicecondition,butalsooneofthemostimportantdesignfactors.AADT,AADTT,ESAL,EALF,TF,ATF,andVCDFaresomeofthekeyconceptsforcharacterizingtrafficloading.SelectCorrectstatementsabouttheirrelations(

)ABothAADTandAADTTaredailytrafficBDesignESAListheproductofAADTandEALFCDesignESAListheproductofAADTandTFDBothTFandEALFareequivalentfactorsfortransferringtrafficvolumesintoESAL正确答案：DCBA第8题AtruckhasthreeaxleswhoseEALFofthefrontwheelis0.05andthetworearaxlesare0.5and0.45.Thetruckfactoris().A0.55B0.5C0.95D1.0第9题SelectCorrectstatementsaboutAADT().AAADTisshortforAnnualAverageDailyTrafficBAADTistrafficvolumeatthedayopentotrafficCAADTiscalculatedbytheannualtrafficvolumedividedby365DAADTiscalculatedbythemonthlytrafficvolumedividedby30正确答案：AC第10题SelectCorrectstatementsabouttruckfactor(TF),averagetruckfactor(ATF),equivalentaxleloadfactor(EALF),andequivalentsingleaxleloads(ESAL)(

)AEALFisEquivalentaxleloadfactorforaspecificaxleloadBTruckfactor(TF)issumofEALFsoftruckaxlesCESALissumofEALFsofalltruckaxlesDdailyESAListheproductofAADTandATF正确答案：CA第11题WiththeWIMmethod,theweightofanemptytruckis145kNwherethefrontaxleloadis45kNandthetworearaxleloadsare50kN.Afteritisfullyloadedwith210kNofthecargo,itsfrontaxleloadbecomes55kNandeachofthetworearaxleloadsbecomes150kN.Giventhepavementtypeisrigidpavement,EALF(45)=2.8E-6,EALF(50)=1.5E-5,EALF(55)=7.01E-5,andEALF(150)=656.84.Selectthecorrectstatements(

)ATF(empty)=3.33E-5BTF(full)=1313.68

CPavement-relatedefficiencyofthisvehicleintermsofthekNofcargocarriedperESAis1313.68/210=6.26(ESAL/kN)DPavement-relatedefficiencyofthisvehicleintermsofthekNofcargocarriedperESAis1313.68/355=3.7(ESAL/kN)正确答案：ABC第12题

GiventheAADToftype3,type7,type8,andtype9are1500,1800,500,and900,selectthecorrectstatements(

)AAADT(sum)=4700BVCDF（3）=38%CVCDF（3）=32%DVCDF(8)=11%正确答案：ACD第13题Forasphaltpavements,intheclimaticzone1-2-4thenumber‘1’representsthehighesttemperature,thenumberof‘2’represents(

),andthenumberof‘4’represents(

).AThehighesttemperature,annualrainfallBThelowesttemperature,annualrainfallCThehighesttemperature,thelowesttemperatureDthelowesttemperature,thehighesttemperature第14题Giventheclimatezoneofanasphaltpavementis1-4-1,couldyoutellthepossibleclimaticzoningforHighway(

)AZoningVBZoningIIICZoningIVDZoningII第15题Fortheconcretepavementwithslabof25cm,thetemperaturegradientis______℃/mifthetemperaturesforthetopsurfaceandbottomsurfaceoftheslabare35℃and15℃,respectively.A80℃/mB140℃/mC60℃/mD140℃/m第16题

Ifyourtaskistodesignanasphaltpavementintheclimaticzone1-1-4,whichfactorsshouldbecarefullyconsideredinyourdesign?AHightemperatureshouldbeconsideredinsummerBLowtemperatureshouldbeconsideredinwinterCWater-relateddamagesshouldbeconsideredduetoeffectsfromrainfallsDWater-relateddamagesarenotprimaryfactorsduetodryweatherofthiszone正确答案：ACD第1题Intheunifiedsoilclassificationsystem(USCS),thesoiltypeisrepresentedby___.Aone-lettersymbols

Btwo-lettersymbolsCone-letterandone-numberDthree-lettersymbols第2题

Intheunifiedsoilclassificationsystem(USCS),thesizetodifferentiateagravelandasandis____.A2.36mm;

B4.75mm;

C4.36mm;

D3.12mm第3题

WhichofthefollowingisNOTasoilclassinthehighwaysoilengineeringtestingspecificationofChina?Aovercoarse-grainedsoils;

Bcoarse-grainedsoils;Cmedian-grainedsoils;

D

fine-grainedsoils第4题

InthehighwaysoilengineeringtestingspecificationofChina,ifthesoiltypeisrepresentedbytwoletters,andthefirstletterisS,whatdoesitrepresent?A

soil;

B

sand;

C

silt;

Dsaline第5题WhichofthefollowingisNOTasubgrademoistureconditions?Adry;

Bmoist;

C

wet;Dsaturated第6题IntheCaliforniabearingratio(CBR)test,ahigherCBRnumberindicatesa___material?Astronger;

B

weaker;C

neitherAorB第7题

WhichofthefollowingisNOTatestforevaluatingsubgradebearingcapacity?Aresilientmodulus;

Bdynamicmodulus;

Creactionstiffness;

DCaliforniabearingratio第8题

WhichofthefollowingisNOTacomponentofaninorganicbinderstabilizedmaterial?Acement;

Basphalt;

Clime;Dflyash第9题Whichofthefollowinghasthehighestairvoids?Aasphalttreatedbase;Basphaltmacadam;

Casphalttreatedpermeablebase;D

stonematrixasphalt第10题Aplainconcreteusuallyhasa___amountofcementcomparedtoleanconcrete.Ahigher;

Blower;

C

neitherAorB第11题WhichofthefollowingisNOTatypicalstructureofunboundgranularmaterials?Avoidskeleton;

Bdenseskeleton;

Cdensecontinuously-graded;

Dopen-gradedskeleton第12题

Thefollowingpicturedemonstratesthestructureofa_____.Avoidskeleton;

Bdenseskeleton;Cdensecontinuously-graded;

D

open-gradedskeleton第13题

Whichofthefollowingtypicallyhasthehighestaggregatesize?AUnboundgranularmaterials;

B

cementstabilizedmaterials;

Cleanconcrete;

Dcementconcrete第14题Foranunboundgranularmaterial,theshearstrengthDOESNOTcomefrom___.A

Slidingfrictionofaggregatesurface;BAggregateinterlocking;C

Resistanceofvolumeexpansion;DTensilestrengthbetweenneighboringparticles第15题

Foraninorganicbinderstabilizedmaterial,thestrengthandmoduluswillchangewiththecuringtime,whichofthefollowingiscorrect?A

BothstrengthandmodulusincreaseB

BothstrengthandmodulusdecreaseCStrengthincreasesbutmodulusdecreasesD

Strengthdecreasesbutmodulusincreases第16题

Thestrengthofanasphaltmixturecomesfrom___.AInterlockingofaggerates;BCohesionofasphalt;C

Adhesionbetweenasphaltandaggregate;DAlloftheabove.第17题Thevisco-elasticpropertyofasphaltmixturecanbeevaluatedfrom___.AResilientmodulustestB

DynamicmodulustestC

CaliforniabearingratiotestDDynamicshearrheologytest第18题

WhichofthefollowingisNOTconsideredasapropertyofasphaltconcrete?AThermalcrackingresistanceBTensilestrengthC

CompressivestrengthDFatiguecrackresistance第19题

Acomparisonbetweenasphaltstabilizedmaterials(ASM)andasphaltmixtures(AM),whichofthefollowingisNOTcorrect?AASMhasabettershearresistancethanAMBASMusuallyusesunmodifiedasphaltCASMhasahigheramountofasphaltthanAMD

ASMhasaweakerfatigueresistancethanAMQuiz4第1题Thesubgradesurfaceishigherthanthenaturalgroundelevation,whichis（）AfillBcutCfill-cutDzerofill第2题Thesubgradecross-sectioniscomposedofthesubgradewidth,subgradeheight,and（）.AsubgradewidthBsubgradeheightCsubgradesideslopeDlanewith第3题Thesubgradesideslopeisdefinedastheratioofthesubgradeheighttotheslopewidth,whenthesubgradeheightH=2.0andtheslopewidthb=3.0,therefore,theslopeis()A1.5:1B2:3C3:2D1:1.5第4题Whenafillheightislessthansubgradeworkareadepth,itcanbedefinedas（）.AlowfillBhighfillCordinaryfillDcut第5题Whentheedgeheightislessthan（）forthesoilslopeitcanbedefinedastheordinarycutsubgrade;A10mB15mC20mD30m第6题Thefactorsthatshouldbeconsideredinsubgradedesign,suchastheNaturalConditions,TrafficLoadingand().ANaturalConditionsBTrafficLoadingCCross-sectionType第7题Roadbedcanbedefinedasthesubgradepartthatis()belowthepavementstructure.A80cmB120cmC80cmor120cmD30cm第8题Thelowerroadbedlayeris()forlight,medium,andheavytraffic.A30cmB50cmC90cmD80cm第9题Thedesigncriteriaoftheroadbedincludetheresilientmodulusand()ACBRBverticalcompressivestrainCCohesive

Dinternalfrictionangle第10题Thesloperatiodependsonthepropertiesofslopesoilsandsloperocks,hydrologicalconditions,and()infillsection.AslopeheightBcenterheightCCBRDrain第11题Theupperembankmentreferstotherangeof()belowthebottomoftheroadbed,A30cmB70cmC50cmD80cm第12题Fortheordinarycutslopesforrocks,thesloperatiocanbedeterminedbytheRocktypes,(),andtheedgeheight.AweatheringdegreeBrainCtemperatureDsubgradeheight第13题Therearethreetypesofmethodsinslopesurfaceprotection,namelytheplantprotectionmethods,theframeworkplantprotectionand()AengineeringprotectionBplantinggrassCplanttypesDthefacingwall第14题Thedirectprotectionmethodsinwater-erosionslopeprotectionmayincludetheplantslopeprotection,(),theretainingwallprotection,theriprapprotection,andgeomembranebag,andsoon.AthegabionslopeprotectionBengineeringprotectionCthefacingwallDplantinggrass第15题Accordingtotheirpositions,retainingstructuresmaybecategorizedintothefillretainingwalls,(),theshoulderretainingwall,andthesloperetainingwalls.AthecutretainingwallsBSlide-resistantpileCSoilnailingwallDGravityretainingwall第16题Thegroundwaterwhichinclude(),unconfinedaquifer,confinedaquifer,spring,etc.AriverBperchedwaterCrainDsnow第17题Themainfacilitiesofsurfacedrainageincludefollowingtypes,suchas(),interceptionditches,mitredrainetcAsideditchesBseepageditchCunderdrainDseepagewell第18题Inareaswitharidclimateswheredrainageisdifficult,weuse（）.AchuteBevaporationpondsCsideditchesDseepageditch第19题（）referstothechannelonasteepslope,anditisalsoknownasthesuspendedditch.AChuteBsideditchesCseepageditchDunderdrain第20题（）isaverticaldirectionundergrounddrainagefacilitygoingthroughtheimpermeablelayertodischargetheundergroundwaterfromthetopoftheembankmenttodeeperwatercarrierAAseepagewellBAhydraulicdropCAmitredrainDAnunderdrainQuiz5第1题Selectasphaltpavementdistresseswhichistheresultoffailingtomeethightemperaturestability()AShovingBRavelingCBleedingDSlippage正确答案：ACD第2题SelectTheorieswhichareusedforflexiblepavementstressanalysis()ABoussinesqTheory(Single-layerElasticTheory)BBurmister(1943)whichisatwo-layeredElasticSystemCMulti-layeredElasticSystemDPlateSystemonElasticFoundation正确答案：ABC第3题Asphaltpavementisalayeredstructurecomposedof()ABaseCourseBFunctionallayerCSubbaseCourseDSurfaceCourse正确答案：ABCD第4题Selectthemeasurewhichisnotusedtoimprovelow-temperaturestability()AAsphaltwithlessWaxcontentBFine-grainedAsphaltMixCAsphaltwithhigherviscosityDAdditionoffibersintoasphaltmixture第5题Thefollowing()canbeusedasbaselayersforasphaltpavement.ASemi-rigidbaselayerBAsphaltstabilizedbaselayerCUnboundgranularbaselayerDRigidbaselayer正确答案：ABCD第6题()typedistressiscausedbytemperature.AFatiguecrackingBPermanentdeformationCRavelingDLowtemperaturecracking第7题()canbeusedtoincreaseskiddingresistance.ADense-gradedmixtureBStonematrixasphaltCOpen-gradedasphaltmixtureDNoneoftheabove正确答案：BC第8题Subgradeforasphaltpavementneedtobe().AStableBUniformCStabilizedDwithenoughbearingcapacity正确答案：ABD第9题()canbeusedasbaselayerforasphaltpavement.ACementstabilizedgravelBCementconcreteCLoosesandDGradedcrushedstone正确答案：ABD第10题()aregoodcandidatesfortackcoatmaterials.AAsphaltemulsionBHotasphaltCRecycledasphaltDHard-gradeasphalt正确答案：AB第11题Amongsubgradesoil,granularmaterial,hydraulicboundmaterialandasphaltmaterial,()hasthemaximummodulus.ASubgradesoilBGranularmaterialCHydraulicboundmaterialDAsphaltmaterial第12题Forasphaltpavementwithsemi-rigidbaselayer,()needtobecheckedforthicknessdesign.ATensilestressatthebottomofsemi-rigidbaselayerBPermanentdeformationofasphaltsurfacelayerCCompressivestrainontopofsubgradeDTensilestrainatthebottomofasphaltsurfacelayer正确答案：AB第13题Forasphaltmixture,()isagoodmeasurementofruttingresistance.ADynamicstabilityBStiffnessCTensilestrengthDCompressivestrength第14题Forasphaltbinder,()has/havebeenusedtoevaluateitslow-temperaturecrackingresistance.ACreepstiffnessBm-valueCTensilestrengthDPenetrationvalue正确答案：AB第15题Forpermanentdeformationofasphaltpavement,itdependson().ALayerthicknessBESALsCCompressivestrengthDTensilestrength正确答案：ABQuiz6第1题Concretepavementisalsocalled（）pavement.AflexibleBrigidCblackDsemi-rigid第2题Whichofthefollowingisthemostlyusedtypeofconcretepavement?AJointedplainconcretepavement(JPCP)BJointedreinforcedconcretepavement(JRCP)CContinuouslyreinforcedconcretepavement(CRCP)DPrestressedConcretePavements(PCP)第3题isthecapabilitytoresistdistressescausedbytrafficload,environmentaleffectsandtomeetservicerequirements.AdurabilityBflexibilityCserviceabilityDsustainability第4题（）isinducedduetotemperaturevariationalongslabthickness.AthermalstressBprimarystressCshearstressDcurlingstress第5题Onthetopoftheconcretepavement,（）isdevelopedduringdaytime.AtensilestressBshearstressCcompressivestressDbulkstress第6题Thetheoryusedtocalculatestressdistributioninaconcretepavementis（）.AthinplatesystemonelasticfoundationBthickplatesystemonelasticfoundationCmulti-layerelastic