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1、全国公路养护初级_中级_高级工理论模拟试题及答案NationalHighwayMaintenanceelementary,intermediateandadvancedengineeringtheory,simulationquestionsandanswersFirst,themultiple-choicequestion.1.,themainreasonforsettingverticalcurveattheslopeoflongitudinalslopeis(B).A,inordertomitigateimpactanden
2、suretrafficsightdistanceB,inordertoensurethesafetyofdrivingC,inordertoimprovethespeedofdriving,D,inordertodrainageunimpeded2.Blizzardsnowwarningis(C).A,payattentiontoB,emergencyC,warningD,veryThe3.highwaycomponent(D)isasmalldrainagestructureacrosstheembankment,mainlyf
3、orreleasinggroundwaterflow.A,subgrade,B,pavementC,bridgeD,culvert4.preparationofhighstrengthconcreteshouldbepreferred(C).A,slagcement,B,pozzolaniccement,C,flyashcement,DandPortlandcement5.snowpavementspreadingsnowmeltagent,at(A)spreading.Aandthepavementisfrozenand1-2h
4、isspreadB,theroadsurfacebeforefreezing,1-2hspreadingCandthepavementisfrozenand3-4hisspreadD,theroadsurfacebeforefreezing,3-4hspreading6.themaximumlongitudinalslopeshallnotbegreaterthan(C)%inthefourgradehighwayabove2000morsnowcoveredareaA,3%B,5%C,8%D,10%7.becauseofther
5、elativelydryclimate,sparserainfall,largeblownsand,sparsesurfacevegetationandpronediseases(D).UnevensettlementoccursonAandroadfoundation,B,slopeorshoulderiseroded,orthewholeroadbedisburiedbyeoliansandC,D,collapse,mudcollapsibility8.forthepreventionandtreatmentofsandyso
6、ilerosioninslopeandlowhumidity(C),canalsobeusedforthecomprehensiveprotectionoflowgradehighway.A,layerprotection,B,tileplantsC,tiledorstackedturf,D,soilprotection9.(A)isthepavementroughnessmaintenancequalitystandardevaluationindex.A,pavementcomprehensivedamagerateDRB,p
7、avementstrengthcoefficientSSIC,travelmassindexRQI,D,lateralforcecoefficientSFC10.,thegreaterthedegreeofasphalt,asphalt(C)thebetter.Thebasicformoftheembankmentexcavationcrosssection(C).A,embankment,B,cuttingC,semifilledandsemiexcavatedsubgrade,D,zerofillandZeroExcavati
8、onSubgrade11.,accordingtothecharacteristicsoftheexpressway,theexpresswaymaintenanceprojectisdividedinto(A).A,minorrepairsand
