题库练习
一建经济题库:资金时间价值、方案评价、财务指标、工程估价、挣值与索赔;逐题解析含错误选项原因。
题库按《建设工程经济》章节组织:章节练习即时判分看解析(含公式与计算过程),模拟考试限时自测,错题自动进错题本。
现状:经济科目 4 章打样题;法规、管理与实务题库将随精讲书陆续上线(法规/管理可先使用本站二建对应题库练习)。
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待验土层,可避免机械开挖扰动与超挖,待会同勘察、设计、监理等单位验槽合格后再人工清底,保证地基持力层原状质量。","answer":"B","chapter":"一建实务·地基与主体","difficulty":2,"explain":{"A":"预留土层与土方外运量的总体优化无关,其目的是保护基底。","C":"降水井布置在开挖前已确定,与预留土层无直接关系。","D":"放坡系数由土质与开挖深度确定,与预留土层无关。"},"id":"jz-01-003","options":["减少土方外运量","防止基底土体被扰动、便于验槽后再清底","便于布置降水井","保证边坡放坡系数符合要求"],"source":"chapter","stem":"某基坑开挖至基底后,监理要求预留 200~300mm 土层暂不开挖。其主要原因是?","subject":"专业工程管理与实务(建筑工程)","type":"single"},{"analysis":"坡度小于 3% 时卷材宜平行屋脊铺贴;坡度 3%~15% 可平行或垂直;坡度大于 15% 或屋面受振动时,卷材应垂直屋脊铺贴,以防卷材沿坡度方向下滑。","answer":"B","chapter":"一建实务·装饰防水节能","difficulty":2,"explain":{"A":"坡度小于 3% 时应平行屋脊铺贴,垂直铺贴反而增加接缝。","C":"上下层卷材不得相互垂直铺贴,否则形成接缝十字薄弱点,易造成渗漏贯通。","D":"铺贴方向需依据坡度与是否受振动确定,不能一概平行。"},"id":"jz-02-001","options":["坡度小于 3% 时应垂直屋脊铺贴","坡度大于 15% 或屋面受振动时应垂直屋脊铺贴","上下层卷材应相互垂直铺贴以增强防水效果","任何情况下卷材均应平行屋脊铺贴"],"source":"chapter","stem":"关于屋面卷材防水层铺贴方向的说法,正确的是?","subject":"专业工程管理与实务(建筑工程)","type":"single"},{"analysis":"硅酮结构密封胶使用前必须核查相容性试验报告(必要时做剥离试验),确认与基材、附件相容后方可使用,是保证结构胶粘结可靠的前提。","answer":"B","chapter":"一建实务·装饰防水节能","difficulty":2,"explain":{"A":"隐框、全玻幕墙的结构胶应在洁净的室内打注,现场露天打注易受粉尘、温湿度影响而降低粘结强度。","C":"后置埋件必须做拉拔力现场试验,检验锚固承载力是否满足设计要求。","D":"幕墙金属框架应与主体结构防雷体系可靠连接,并保证电气导通。"},"id":"jz-02-002","options":["硅酮结构密封胶在施工现场露天打注","使用前核查结构胶的相容性试验报告","后置埋件安装后不做拉拔力试验","幕墙金属框架不与主体结构防雷体系连接"],"source":"chapter","stem":"某工程隐框玻璃幕墙施工,下列做法正确的是?","subject":"专业工程管理与实务(建筑工程)","type":"single"},{"analysis":"外保温系统应每层设置防火隔离带,高度不小于 300mm,并应采用燃烧性能为 A 级的不燃材料,以阻止火焰沿保温层竖向蔓延。","answer":"B","chapter":"一建实务·装饰防水节能","difficulty":2,"explain":{"A":"仅首层设置无法阻断楼层间的竖向火蔓延路径。","C":"设置频次与高度、材料等级均不符合要求,难燃材料不能替代不燃材料。","D":"防火隔离带的功能是竖向分隔,与屋面保温层作用不同,不能合并设置。"},"id":"jz-02-003","options":["仅在建筑首层设置一道,高度不小于 300mm","每层设置,高度不小于 300mm,采用不燃材料","每两层设置,高度不小于 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的模板支撑体系属于超过一定规模的危险性较大的分部分项工程,其专项施工方案应当组织专家论证,按论证报告修改完善后,经施工单位技术负责人、总监理工程师、建设单位项目负责人签字后方可实施。","answer":"C","chapter":"一建实务·质量安全","difficulty":2,"explain":{"A":"项目技术负责人无权审批专项方案,更不得自行决定是否论证。","B":"达超危大标准的方案仅经技术负责人签字不能替代专家论证程序。","D":"专家论证会应由施工单位组织,监理单位承担方案审核与实施监督职责。"},"id":"jz-04-002","options":["由项目技术负责人审批后即可施工","由施工单位技术负责人审核签字后即可施工","须组织专家论证,并按论证报告修改完善后实施","由监理单位组织专家论证后实施"],"source":"chapter","stem":"某模板支撑体系搭设高度 9m、跨度 15m,其专项施工方案应如何处理?","subject":"专业工程管理与实务(建筑工程)","type":"single"},{"analysis":"死亡 3~9 人属较大事故(重大事故为 10~29 人,特别重大为 ≥30 人);事故等级按死亡、重伤、直接经济损失三项中达到的最高档确定,本例死亡 8 人对应较大事故。","answer":"B","chapter":"一建实务·质量安全","difficulty":2,"explain":{"A":"一般事故的死亡人数为 3 人以下,本例已明显超过。","C":"重大事故死亡人数为 10~29 人,本例未达到。","D":"特别重大事故死亡人数为 30 人以上,本例远未达到。"},"id":"jz-04-003","options":["一般事故","较大事故","重大事故","特别重大事故"],"source":"chapter","stem":"某工地发生生产安全事故,造成 8 人死亡、直接经济损失 1200 万元,该事故等级为?","subject":"专业工程管理与实务(建筑工程)","type":"single"},{"analysis":"该工作拖延 6d 超过总时差 4d,超出部分影响总工期,可索赔工期 = 6 − 4 = 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年内"],"source":"chapter","stem":"某施工企业对建设行政主管部门作出的行政处罚决定不服,直接向人民法院提起行政诉讼的期限是?","subject":"建设工程法规及相关知识","type":"single"},{"analysis":"路基压实应遵循先轻后重、先慢后快、先边后中的原则:直线段由两侧向中心碾压,超高段由低侧向高侧碾压,避免土体侧向挤出。","answer":"B","chapter":"一建市政·道路工程","difficulty":2,"explain":{"A":"先重后轻会压坏表层并造成推移,先中间后两侧会使土向两侧挤出。","C":"先重后轻不符合压实工艺要求。","D":"先快后慢与先中间后两侧均不符合压实原则。"},"id":"sz-01-001","options":["先重后轻、先快后慢、先中间后两侧","先轻后重、先慢后快、先边后中","先重后轻、先慢后快、先边后中","先轻后重、先快后慢、先中间后两侧"],"source":"chapter","stem":"路基压实作业应遵循的原则是?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"初压用于稳定混合料并初步成型,**复压是达到规定压实度的关键阶段**(采用振动压路机或轮胎压路机),终压用于消除轮迹并使表面平整。","answer":"B","chapter":"一建市政·道路工程","difficulty":2,"explain":{"A":"初压紧跟摊铺机在高温下进行,主要作用是稳定与初步成型。","C":"终压的作用是消除轮迹、改善表面平整度,不承担主要压实任务。","D":"收面不是独立碾压阶段,说法不规范。"},"id":"sz-01-002","options":["初压","复压","终压","收面"],"source":"chapter","stem":"沥青混合料面层碾压过程中,对达到规定压实度起关键作用的阶段是?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"水泥稳定材料从加水拌和到碾压成活的时间应控制在水泥初凝时间以内,超过初凝再压实会破坏已形成的结构、显著降低强度。","answer":"B","chapter":"一建市政·道路工程","difficulty":2,"explain":{"A":"城市道路基层一般要求厂拌,不得以路拌替代。","C":"含水量应控制在最佳含水量附近(可略大以补偿蒸发),过湿会形成弹软、压不实。","D":"横向接缝应垂直,不得采用斜接缝,上下层接缝还应错开。"},"id":"sz-01-003","options":["可采用路拌法替代厂拌法","从加水拌和到碾压成活的时间应控制在水泥初凝时间以内","含水量越大越易压实","横向接缝可采用斜接缝"],"source":"chapter","stem":"关于水泥稳定土基层施工,说法正确的是?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"首批混凝土数量应满足导管埋深不小于 1.0m 的要求,灌注过程中导管埋深宜控制在 2~6m;埋深过小易造成夹泥、断桩,过大会造成埋管事故。","answer":"C","chapter":"一建市政·桥梁工程","difficulty":2,"explain":{"A":"埋深过小(尤其小于 1.0m)会导致泥浆返入导管、混凝土夹泥甚至断桩。","B":"该区间低于规范推荐的控制范围,安全余量不足。","D":"埋深过大将显著增加拔管阻力,易造成埋管事故。"},"id":"sz-02-001","options":["0.5~1.0m","1.0~2.0m","2~6m","6~10m"],"source":"chapter","stem":"钻孔灌注桩水下混凝土灌注过程中,导管埋置深度宜控制在?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"张拉时应以张拉力控制为主,以伸长值校核为辅;实际伸长值与理论伸长值的偏差一般应控制在 ±6% 以内,超出应暂停张拉、查明原因后处理。","answer":"B","chapter":"一建市政·桥梁工程","difficulty":2,"explain":{"A":"±2% 过严,规范未采用该限值。","C":"±10% 过宽,无法及时发现材料、摩阻或设备问题。","D":"±15% 明显超出允许范围,属干扰项。"},"id":"sz-02-002","options":["±2%","±6%","±10%","±15%"],"source":"chapter","stem":"后张法预应力筋张拉时,实际伸长值与理论伸长值的偏差一般应控制在?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"合龙宜在一天中温度较低且稳定的时段进行,以减少温度变化引起的附加内力;施工中应对挠度(线形)、应力与温度进行监测并动态调整立模标高。","answer":"B","chapter":"一建市政·桥梁工程","difficulty":2,"explain":{"A":"高温时段合龙会因温度变化产生较大附加内力与变形。","C":"挂篮应进行预压与荷载试验,以消除非弹性变形并验证承载能力。","D":"线形(挠度)控制是悬臂浇筑的核心,必须监测与控制。"},"id":"sz-02-003","options":["合龙宜在一天中温度最高时段进行","合龙宜在一天中温度较低且稳定时段进行,并应进行线形监测","挂篮无需预压和试验","悬臂浇筑无需控制挠度"],"source":"chapter","stem":"关于悬臂浇筑法施工,说法正确的是?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"喷锚暗挖法的基本方针是:管超前、严注浆、短开挖、强支护、快封闭、勤量测。其中短开挖与强支护是控制地层变形的关键,长进尺、弱支护与之正好相反。","answer":"D","chapter":"一建市政·轨道与地下","difficulty":2,"explain":{"A":"管超前、严注浆属于十八字方针内容。","B":"短开挖、强支护属于十八字方针内容。","C":"快封闭、勤量测属于十八字方针内容。"},"id":"sz-03-001","options":["管超前、严注浆","短开挖、强支护","快封闭、勤量测","长进尺、弱支护"],"source":"chapter","stem":"喷锚暗挖法施工的十八字方针中,不包括下列哪一项?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"土仓压力决定开挖面稳定,同步注浆及时填充盾尾建筑空隙,二者是控制地表沉降最关键的措施;必要时补充二次注浆。","answer":"B","chapter":"一建市政·轨道与地下","difficulty":2,"explain":{"A":"盲目提高刀盘转速会加大地层扰动,不利于沉降控制。","C":"掘进速度应与地质、出土量与注浆能力匹配,单纯加快会增加沉降风险。","D":"管片螺栓应按设计扭矩紧固,减少扭矩会影响管片整体性与防水。"},"id":"sz-03-002","options":["提高刀盘转速","控制土仓压力并及时同步注浆","加快掘进速度","减少管片螺栓紧固扭矩"],"source":"chapter","stem":"盾构掘进中控制地表沉降最关键的措施是?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"基坑施工必须坚持先撑后挖,支撑未形成或未达设计强度前不得继续下挖;钢支撑应按设计要求施加预应力并复加,以主动控制围护结构变形。","answer":"B","chapter":"一建市政·轨道与地下","difficulty":2,"explain":{"A":"先挖后撑会大幅增大围护结构悬臂受力与变形,极易引发事故。","C":"支撑拆除应与主体结构施工换撑配合,不得一次全部拆除。","D":"基坑必须进行围护结构变形、支撑轴力、地下水位与周边环境监测。"},"id":"sz-03-003","options":["可先开挖至设计标高后再一次性安装支撑","支撑未形成或未达设计强度前不得下挖,钢支撑应按设计施加预应力","支撑可在主体结构完成后一次全部拆除","基坑施工无需进行变形监测"],"source":"chapter","stem":"关于明挖基坑施工,说法正确的是?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"满水试验应分三次注水,每次注至设计水深的 1/3,每次注水后间隔 24h 观测;满水后按规定时间观测水位下降值并测定蒸发量。","answer":"C","chapter":"一建市政·给排水管道","difficulty":2,"explain":{"A":"一次注满会使池壁一次承受全部水压,风险大且无法逐级检查。","B":"分两次注水不符合规范规定的三次注水要求。","D":"满水试验是检验池体强度与抗渗性能的功能性试验,不能仅做外观检查。"},"id":"sz-04-001","options":["一次注满至设计水深","分两次注水,每次 1/2","分三次注水,每次至设计水深的 1/3,每次间隔 24h","只需进行外观检查"],"source":"chapter","stem":"现浇钢筋混凝土水池满水试验的注水方式是?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"无压(重力流)排水管道应进行闭水试验,且为带井试验,检查井与管段一并试验;渗水量不超过允许值即合格。","answer":"B","chapter":"一建市政·给排水管道","difficulty":2,"explain":{"A":"水压试验适用于给水等压力管道。","C":"气密性试验主要用于消化池等有气密性要求的构筑物。","D":"满水试验适用于水池等给排水构筑物。"},"id":"sz-04-002","options":["水压试验","闭水试验(带井试验)","气密性试验","满水试验"],"source":"chapter","stem":"无压排水管道应进行的功能性试验是?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"管顶以上 500mm 范围内应人工回填并轻夯,不得用机械碾压或重型夯实,以免损伤管道;回填应沿管道两侧对称、分层进行;有功能性试验要求的管道应在试验合格后回填。","answer":"B","chapter":"一建市政·给排水管道","difficulty":2,"explain":{"A":"该范围内使用重型机械碾压会直接损伤管道或造成位移。","C":"单侧回填会使管道受侧向推力而产生位移,必须两侧对称回填。","D":"应先完成闭水(或水压)试验并合格后再回填。"},"id":"sz-04-003","options":["管顶以上 500mm 范围内可用重型机械碾压","管顶以上 500mm 范围内应人工回填、轻夯,不得用机械碾压","回填可从管道一侧单侧进行","有闭水试验要求的管道可先回填后试验"],"source":"chapter","stem":"关于沟槽回填,说法正确的是?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"HDPE 膜防渗层焊缝应采用双缝热熔焊并进行充气(真空)检漏,且应按规定抽样做剥离与剪切试验;基层应平整无尖锐物;大风、雨雪天不宜施工。","answer":"B","chapter":"一建市政·环境与测量","difficulty":2,"explain":{"A":"焊缝必须检验,未经检漏与试验的防渗层存在渗漏风险。","C":"基层存在尖锐物会刺穿防渗膜,必须清理平整并设置保护层。","D":"大风天气铺设易造成膜体撕裂、位移,且焊接质量难以保证。"},"id":"sz-05-001","options":["焊缝无需检验,铺设后即可填埋","焊缝应采用双缝热熔焊并做充气检漏,按规定抽样做剥离与剪切试验","基层允许存在尖锐物以增加摩擦","大风天气最适合铺设 HDPE 膜"],"source":"chapter","stem":"生活垃圾填埋场 HDPE 膜防渗层施工,下列说法正确的是?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"占路施工应编制交通导行方案并报交通管理部门批准,按警告区、上游过渡区、缓冲区、作业区、下游过渡区、终止区进行布置,设置围挡、标志、夜间照明与反光设施。","answer":"B","chapter":"一建市政·环境与测量","difficulty":2,"explain":{"A":"占路施工须经交通管理部门批准,施工单位无权自行决定。","C":"导行设施须覆盖警告区至终止区的完整范围,仅设作业区标志不足以保证安全。","D":"夜间施工必须设置照明与反光警示设施,并符合夜间施工的管理要求。"},"id":"sz-05-002","options":["施工单位可自行决定占用道路施工","交通导行方案应报交通管理部门批准,并分阶段设置警告区、过渡区、作业区等","只需在作业区设置标志即可","夜间施工无需照明与反光设施"],"source":"chapter","stem":"关于城市道路施工的交通导行,说法正确的是?","subject":"专业工程管理与实务(市政公用工程)","type":"single"},{"analysis":"燃气泄漏时应立即停止一切作业、撤离人员、划定警戒区、严禁烟火,并通知燃气与消防部门专业抢险;严禁一切可能产生火花的作业。","answer":"B","chapter":"一建市政·环境与测量","difficulty":2,"explain":{"A":"用土回填无法阻止燃气扩散,且可能造成燃气在土中积聚,风险更大。","C":"继续施工极易引发爆炸事故,应先行撤离与警戒。","D":"启动机械设备可能产生火花并加剧险情,应先断电撤离。"},"id":"sz-05-003","options":["立即用土回填覆盖泄漏点","立即停止作业、撤离人员、划定警戒区、严禁烟火并通知燃气与消防部门","继续施工并尽快修复管道","立即启动机械设备转移管材"],"source":"chapter","stem":"施工中机械开挖挖断燃气管道并发生泄漏,现场首要的正确处置是?","subject":"专业工程管理与实务(市政公用工程)","type":"single"}],"cert":"yijian","chapters":[{"name":"一建实务·地基与主体","title":"第 1 章 · 地基基础与主体结构施工技术","url":"/yijian/books/jianzhu/jz-01-dijijichu/"},{"name":"一建市政·道路工程","title":"第 1 章 · 城市道路工程","url":"/yijian/books/shizheng/sz-01-daolu/"},{"name":"一建经济·工程经济","title":"第 1 章 · 工程经济(资金时间价值 · 方案评价)","url":"/yijian/books/jingji/yj-01-gongchengjingji/"},{"name":"一建法规·基本法律","title":"第 1 章 · 建设工程基本法律知识","url":"/yijian/books/fagui/fg-01-jiben/"},{"name":"一建管理·组织与责任","title":"第 1 章 · 组织与责任体系","url":"/yijian/books/guanli/yjgl-01-zuzhi/"},{"name":"一建市政·桥梁工程","title":"第 2 章 · 城市桥梁工程","url":"/yijian/books/shizheng/sz-02-qiaoliang/"},{"name":"一建经济·工程财务","title":"第 2 章 · 工程财务","url":"/yijian/books/jingji/yj-02-caiwu/"},{"name":"一建管理·成本管理","title":"第 2 章 · 成本管理(挣值法)","url":"/yijian/books/guanli/yjgl-02-chengben/"},{"name":"一建法规·许可与资格","title":"第 2 章 · 施工许可与从业资格法律制度","url":"/yijian/books/fagui/fg-02-xukezige/"},{"name":"一建实务·装饰防水节能","title":"第 2 章 · 装饰装修、屋面防水与建筑节能","url":"/yijian/books/jianzhu/jz-02-zhuangshi-fangshui/"},{"name":"一建市政·轨道与地下","title":"第 3 章 · 城市轨道交通与地下工程","url":"/yijian/books/shizheng/sz-03-guidao-dixia/"},{"name":"一建经济·工程估价","title":"第 3 章 · 建设工程估价(总投资 · 建安费 · 清单计价)","url":"/yijian/books/jingji/yj-03-gujia/"},{"name":"一建法规·发承包招标","title":"第 3 章 · 建设工程发承包与招标投标法律制度","url":"/yijian/books/fagui/fg-03-zhaotoubiao/"},{"name":"一建实务·进度组织","title":"第 3 章 · 施工组织与进度管理实务","url":"/yijian/books/jianzhu/jz-03-jindu/"},{"name":"一建管理·进度管理","title":"第 3 章 · 进度管理(网络计划与时差)","url":"/yijian/books/guanli/yjgl-03-jindu/"},{"name":"一建法规·合同与劳动","title":"第 4 章 · 合同与劳动合同法律制度","url":"/yijian/books/fagui/fg-04-hetong-laodong/"},{"name":"一建经济·经济与项目管理","title":"第 4 章 · 经济与项目管理结合(进度 · 挣值 · 索赔)","url":"/yijian/books/jingji/yj-04-jingji-xm/"},{"name":"一建市政·给排水管道","title":"第 4 章 · 给排水与管道工程","url":"/yijian/books/shizheng/sz-04-gaipaishui/"},{"name":"一建管理·质量安全合同","title":"第 4 章 · 质量、安全与合同管理","url":"/yijian/books/guanli/yjgl-04-zhiliang-anquan/"},{"name":"一建实务·质量安全","title":"第 4 章 · 质量验收、安全与危大工程管理","url":"/yijian/books/jianzhu/jz-04-zhiliang-anquan/"},{"name":"一建法规·安全质量环保","title":"第 5 章 · 安全、质量、环保节能与文物法律制度","url":"/yijian/books/fagui/fg-05-anquan-zhiliang/"},{"name":"一建实务·案例套路","title":"第 5 章 · 案例分析答题套路","url":"/yijian/books/jianzhu/jz-05-anli/"},{"name":"一建市政·环境与测量","title":"第 5 章 · 环境工程与施工测量管理","url":"/yijian/books/shizheng/sz-05-huanjing-celiang/"},{"name":"一建法规·纠纷解决","title":"第 6 章 · 建设工程纠纷解决法律制度","url":"/yijian/books/fagui/fg-06-jiufen/"}],"practiceUrl":"/yijian/practice/"}