西交《路基路面工程》在线作业（west to pay subgrade and pavement engineering online homework）

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1、西交《路基路面工程》在线作业（Westtopaysubgradeandpavementengineeringonlinehomework）Westtopay"subgradeandpavementengineering"onlinehomeworkTotalscore:100testtime:-RadioexaminationAmultiple-choicequestionJudgmentquestionRadioexaminationquestions(25questions,50points)1.,theclassificationofas

2、phaltmixturestonebelongstocoarsegrainedasphaltmixtureindexis()A.compositionstructureB.mineralaggregategradationMaximumparticlesizeofC.oreD.mineralaggregateminimumparticlesizeFullmarks:22.CBRisanindicatorofsubgradeandpavementmaterialsA.stiffnessB.durabilityC.carryingcapacityD

3、.roughnessFullmarks:23.belongtothepavementstructureperformancerequirementsis()A.strengthB.stiffnessC.durabilityD.flatnessFullmarks:24.aboutthestaticeffectofvehicleonroadsurface,thefollowingstatementisincorrectA.verticalstaticdependsonwheelweight,wheelpressure,andtireproperti

4、esB.contactpressuredistributionisevenThecontactareaofC.isapproximatelyellipseD.designisconsideredassingleordoublecircledrawing,calledequivalentcircleFullmarks:25.,thefollowingstatementisnottrueaboutthedynamiceffectsofvehicleonroadsurfaceA.vehicle;dynamicload;size;ChengZhengt

5、aidistributionThecoefficientofvariationofB.dynamicloadisrelatedtovehiclespeed,flatnessandvehicledampingperformanceTheloadingtimeofC.pavementisshortThedynamicloadfactorisnotconsideredinthedesignofD.flexiblepavementFullmarks:26.themaximumslablengthofcementconcretepavementshall

6、benomorethan(m)metersA.4.5B.5C.6D.8Fullmarks:27.cementstabilizedbase,themaintechnicalrequirementsofcementis()A.hasalongerfinalsettingtimeB.hashigherstrengthlevelsC.hashighercompressivestrengthD.hashigherflexuralstrengthFullmarks:28.fillheightislessthanhowmanymeters,becalledl

7、owembankment()A.1to1.5metersB.2~3metersC.4~5metersD.5~8metersFullmarks:29.,thefollowingcontentdoesnotbelongtotheconceptofSubgradeTheA.isdugintothegroundaccordingtolineshapetoformacertainsectionshapeB.bearsvehicleloadsagainstenvironmentalfactorsC.providesgooddrivingconditions

8、D.earthrockstructureFullmarks:210.thestandardaxleloadmodelconsideredintheco