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1、建设工程安全生产技术（土建类）一、单选题(本题型每题有4个备选答案，其中只有1个答案是正确的。多选、不选、错选都不得分)1．土石根据其坚硬程度和开挖方法及使用工具可分为（）类。A．5B．6C．7D．8正确答案：D2．野外鉴别人工填土，它的颜色为()。A．固定的红色B．无固定颜色C．有固定颜色D．都是黄色正确答案：B3．在斜坡上挖土方，应做成坡势，以利()。A.蓄水B．泄水C．省力D．行走正确答案：B4．在滑坡地段挖土方时、不宜在()季节施工。A．冬季B．春季C．风季D．雨季正确答案：D5．湿土地区开挖时，若为人工降水，降至坑底()时方可开挖。A．0.2m以下B．0.5m以下C．0.2m
2、以上D．0.5~1.0m正确答案：D6．在膨胀土地区开挖时，开挖前要做好()。A．堆土方案B．回填土准备工作C．排水工作D．边坡加固工作正确答案：C7．采用钢筋混凝土灌注桩时，开挖标准是桩身混凝土达到()。A．设计强度后B．混凝土灌注C．混凝上灌注24hD．混凝土凝固后正确答案：A8．人工开挖土方时，两个人的操作间距应保持()。A．1mB．1~2mC．2~3mD．3.5~4menforcedthermalinsulationstartscheckingsystem,issuedbythethermalinsulationconstructionbeforeyoustarttonotic
3、e,transferinspectionofupperandloweroperationandtransferofrecords.Foroutdooroperation,pipelineequipmenttoeffectivelycarryouttheinsulationwaterproofmeasuresfailtoinstallprotectivepanelsinpartwiththreetarpaulincover,topreventinsulationfrommoisture.InsulationseamMichaelJackson5mm,joints,joints>100mm
4、,insulationthicknesstolerance(+10MM~–5mm),appropriatematerialelasticbanding,spacingaccordingtothedesignrequirements,rigidinsulationsoftmaterialsforconstructionjointstight;Andlarge-diameterverticalpipeforhightemperaturepipelineinstrictaccordancewithdesigndrawingscalledfortheestablishmentofexpansi
5、onjointsandholdingbracket;Designrequirementsintoaremovabletypeofinsulation,instrictaccordancewithspecificationsdisconnectfromtheotherinsulation;Surfaceinsulationboardsinthetechnologyofplasteringconstructionofwovenclothtopreventpollutionandprotectivepanelsflushwiththesurfaceinterface,tightandclea
6、n.Sitemeasurementofinsulationboardsforelbowshapecutting,ensurethateachpieceoflappedtraffic,arctransitionofnatural,beautiful,screwsup.Stampedeoutsideconstructionpersonnelisstrictlyprohibitedandshelveobjectsdirectlyontheoutershield.Inordertopreventthepollution-proneheater,channelareaofsecondarypol
7、lutionoflarge-diameterpipesandotherequipment,weavingcloth,anderectionoftheseparationplatformforpreservation.Thermalinsulationconstruction,on-hooktackweldedtotheconsolidatedline,toensureevenlyspaced,andthehooknaileddown...See
