建筑施工技术复习资料(下

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1、建筑施工技术复习资料（下）单项选择题1.我国规定：混凝土搅拌机以其（B）标定规格。A出料容量B进料容量C出料系数D（出料容量+进料容量）/22.墙体水平施工缝应留在底板表面以上不小于（A）的墙体上。A200mmB300mmC400mmD500mm3.混凝土强度达到（C）前，不得在其上踩踏或安装极板及支架。A1.0MpaB1.15MpaC1.2MpaD1.25Mpa4.混凝上自高处倾落时的自由倾落高度不宜超过（D）。A0.5mB1.0mC1.5mD2.0m5.用于检查结构构件混凝上强度的试件，应在混凝土的（D）随机抽取。A搅拌地点B养护地点C取样地点D浇筑地点6.混凝土施工缝应尽可能留置在受

2、（C），并便于施工的部位。A弯矩较小B轴力较小C剪力较小D扭矩较小7.混凝土自然养护，是指在平均气温高于（A）的条件下使混凝土保持湿润状态。A5C0B10C0C15C0D20C08.普通防水混凝土是以调整和控制（D）的方法，来达到提高混凝土密实性和抗渗性要求。A原材料质量B原材料含水量C原材料强度D混凝土配合比9.对掺用缓凝型外加剂或有抗渗要求的混凝土，养护时间不应少于（C）天。A3B7C14D2810.混凝土自高处倾落时的自由倾落高度不宜超过（B）。超过（B）时应采取措施。A1.5mB2.0mC2.5mD3.0m11.搅拌混凝土前，先在料斗中装入（A），可使水泥夹在石子和砂中间，有效地避

3、免上料时所发生的水泥飞扬现象，同时也可使水泥及砂子不致粘住斗底。nthemainterminal,andthetelephoneOfficeisresponsibleforprovidingtheappropriatesizeadapterpatchpanelsandelectricalprotectionunit.(Shuttlebus)wiring(IDF)setupintheworkshoponthesecondfloorofthebuilding,locatedintheDistrictofweakelectricalcabinets(well).Engineroomplacedi

4、nsidetheCabinet,IDFplacedastandard40Ucabinetsforinstallationofnetworkandwiringdevices,managementcomputerandtelephoneinformation.CabinetdistributionframearemadeofSuperfiveRJ45patchpanelhorizontaltwistedpairconnections.Computerinformationmanagement,adminareausingthejumpers,whichusesprivateRJ45-RJ45s

5、oftjumpersfornetworkdeviceswithjumpershoppingbetweenallswitches,changes,expansionandmaintenanceweredonequicklyinthewiringcloset.TwistedlengthCentreroomislocatedonthesecondfloor,outwardradiationofeachline(exceptsomepointsmayexceed)doesnotexceed100metresinlength,allinformationforthevariousfloorsallr

6、ooms(distributionCabinet)unifiedmanagement.Districtworkshopbuildingdistributionlines(IDF)viafiberopticcablesconnectedtothetotalroomcabinets.Fiberlengthwere:workshopstwoIDF:totalmorethan1200squaremeters,doublethenumberofstrandscanbecalculatedbymultiplyingtheaveragelengthofthenumberofinformationpoin

7、tsare.Averagelevelofeachlengthofcable:L=[(S1+S2)/2]+L1+L2l:averagelengthofcable;L1:MDFcableallowance;L2:otherallowancesS1:minimumhorizontalcablelength;S2:maximumhorizontallengthofcable;Officebuildingofinformation