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1、西交《砌体结构》在线作业（Onlineworkofmasonrystructure）OnlineworkofmasonrystructureTotalscore:100testtime:-RadioexaminationAmultiple-choicequestionJudgmentquestionRadioexaminationquestions(15questions,30points)1.forthewallsofthefiveandfivestoreyshouses,theminimums
2、trengthoftheblocksis()A.MU20B.MU30C.MU40Fullmarks:22.whenthestrengthgradeofmortarisdetermined,thelengthofcubestandardtestblockis()A.150B.70.7C.200Fullmarks:23.,ourcountryusuallycalledtheblockheightasasmallblockA.180-350mmB.160-350mmC.170-360mmFullmark
3、s:24.theporosityofsinteredporousbricksisnotlessthan()A.20%B.25%C.30%Fullmarks:2Mostofthe5.medium-sizedfactoriesareselectedA.masonrystructureB.reinforcedconcretestructureC.steelstructureFullmarks:26.inmasonrystructures,themostcommonlyusedis()A.compress
4、ionmemberB.tensionmemberC.flexuralmemberFullmarks:27.,whenthestiffnessoftheadjacentpartsofthebuildingisdifferentfromeachother,itshouldbesetatthejunctionA.expansionjointB.settlementjointC.seismicjointFullmarks:28.()istheconstantloadactingonthestructure
5、oftheplantA.variableloadB.dynamicloadingC.permanentloadFullmarks:29.thegravitydensityoffiredcommonbricksisbetween...A.16-18kN/m3B.17-18kN/m3C.16-17kN/m3Fullmarks:210.atpresent,thetwotypesusedinthesinglestoreyworkshoparetwohingeand()A.threehingeB.singl
6、ehingeC.hybridFullmarks:211.,fromthemacrolevel,thequalitycontrolgradeofmasonryengineeringisdividedinto()A.,A,B,CthreeB.,A,B,C,DfourlevelC.,A,B,C,D,E,fivelevelFullmarks:212.,ourcountryusuallyblockheightisgreaterthan()knownaslargeblocksA.800mmB.900mmC.1
7、000mmFullmarks:213.,inthegeneralsinglestoreyplant,()isthemainload-bearingstructureA.longitudinalshelvingB.lateralbentC.verticalandhorizontalmixingbentFullmarks:214.,whenthelongitudinalsizeofsinglestoreyplantislarge,shouldbeset()A.expansionjointB.settl
8、ementjointC.seismicjointFullmarks:215.thedensityofconcretehollowblockisbetween()A.14-18kN/m3B.12-18kN/m3C.14-20kN/m3Fullmarks:2OnlineworkofmasonrystructureTotalscore:100testtime:-RadioexaminationAmultiple-choicequestionJudgmentquestion,(atotal
