{"name":"古建筑传统瓦工题库","level":"五级/初级工、四级/中级工、三级/高级工、二级/技师、一级/高级技师","org":"人力资源和社会保障部门备案的用人单位和社会培训评价组织","count":300,"questions":[{"id":1,"type":"single","stem":"传统屋面苫背时，护板灰与泥背之间的正确做法是","options":["护板灰干透后再苫泥背","护板灰稍干后即苫泥背","护板灰与泥背同时铺设","护板灰完全湿透时苫泥背"],"answer":[1],"explanation":"知识点：苫背分层工艺。护板灰稍干（手按不粘）后即苫泥背，可使两层结合密实；干透后苫泥背会分层空鼓；同时铺设无法控制厚度与找平；完全湿透时苫泥背易流坠变形。","tier":"挑战"},{"id":2,"type":"single","stem":"传统瓦作中，板瓦屋面底瓦的搭接方向应","options":["自上而下顺水搭","自下而上逆水搭","左右横向平搭","按瓦件长短交错搭"],"answer":[0],"explanation":"知识点：底瓦搭接方向。底瓦应自上而下顺水搭接，使雨水沿搭接缝顺利下排；逆水搭接会兜水渗漏；横向平搭与交错搭均不符合屋面排水构造。","tier":"基础"},{"id":3,"type":"single","stem":"筒瓦屋面捉节夹垄时，捉节的主要作用是","options":["填塞筒瓦之间的缝隙","调整瓦垄的垂直度","固定底瓦防止下滑","增加屋面整体重量"],"answer":[0],"explanation":"知识点：捉节夹垄工艺。捉节是用灰填塞筒瓦接缝以防渗水；调垄由瓦刀与线绳控制；固定底瓦靠钉瓦或灰浆坐实；增重并非捉节目的。","tier":"基础"},{"id":4,"type":"single","stem":"古建屋面苫背中，泥背所用灰土的传统配合比通常为","options":["白灰与黄土体积比约1:1","白灰与黄土体积比约1:3","白灰与黄土体积比约3:1","白灰与黄土体积比约1:6"],"answer":[1],"explanation":"知识点：泥背灰土配合比。传统泥背白灰与黄土体积比约1:3，既有强度又不易开裂；1:1灰量过大易裂；3:1灰过多浪费且脆；1:6土多强度不足易酥松。","tier":"进阶"},{"id":5,"type":"single","stem":"布瓦屋面青瓦修缮中，发现底瓦有轻微裂纹但未渗漏，正确的处置是","options":["立即整垄揭瓦重做","用灰浆灌缝后继续使用","更换该块底瓦并局部夹垄","在裂纹处贴布后刷浆"],"answer":[2],"explanation":"知识点：瓦件修缮原则。轻微裂纹底瓦应更换并局部夹垄恢复防水；整垄揭瓦过度；灌缝不解决瓦体强度；贴布刷浆非传统瓦作做法。","tier":"挑战"},{"id":6,"type":"single","stem":"传统瓦作中，筒瓦屋面“夹垄”与“捉节”的先后顺序是","options":["先夹垄后捉节","先捉节后夹垄","两者同时进行","无固定顺序"],"answer":[1],"explanation":"知识点：筒瓦屋面工序。应先捉节填塞筒瓦接缝，再夹垄抹灰固定瓦垄两侧；先夹垄会妨碍捉节操作；同时进行无法保证缝内密实；工序有明确先后。","tier":"基础"},{"id":7,"type":"single","stem":"古建屋面翼角瓦垄放线时，翼角部分的瓦垄应","options":["与正身瓦垄完全平行","随翼角起翘呈放射状","与檐口线垂直","按正身垄数等分加密"],"answer":[1],"explanation":"知识点：翼角瓦垄排布。翼角瓦垄随起翘呈放射状排列，使瓦面顺水；平行正身会翘曲不顺；垂直檐口不符构造；等分加密非传统做法。","tier":"进阶"},{"id":8,"type":"single","stem":"屋面苫背完成后，传统上需进行“晾背”，其主要目的是","options":["使灰背快速脱水硬化","让灰背自然干燥防止开裂","便于瓦件运输上房","检查灰背厚度是否达标"],"answer":[1],"explanation":"知识点：晾背作用。晾背让灰背自然干燥，防止暴晒或急干开裂；快速脱水会裂；运输与厚度检查非晾背目的。","tier":"进阶"},{"id":9,"type":"single","stem":"在古建屋面修缮中，发现原有瓦件为“削割瓦”，新补瓦件应","options":["用同规格机制瓦替代","按原瓦尺寸手工削制","用略大一号瓦找齐","用水泥砂浆塑形补缺"],"answer":[1],"explanation":"知识点：削割瓦修缮。削割瓦为手工削制，补配应按原尺寸手工削制以保持形制；机制瓦形制不符；大一号瓦破坏垄线；水泥塑形非传统瓦作。","tier":"挑战"},{"id":10,"type":"single","stem":"传统瓦作中，屋面瓦垄“分中”是指","options":["确定屋面正中一垄的位置","在檐口确定各垄间距","将瓦件按厚度分级","把灰背分成若干段"],"answer":[0],"explanation":"知识点：分中工序。分中是先定屋面正中一垄位置，再向两侧排垄；檐口定间距属排垄；分级与分段均非分中含义。","tier":"基础"},{"id":11,"type":"single","stem":"某古建屋面修缮时，施工员发现苫背层局部空鼓，正确的处置是","options":["在空鼓处灌浆填实","铲除空鼓部分重新苫背","钻孔排水后表面抹平","加铺一层泥背覆盖"],"answer":[1],"explanation":"知识点：苫背空鼓处理。空鼓须铲除至密实层重新苫背；灌浆无法恢复结合；钻孔抹平治标不治本；加铺覆盖会掩盖隐患。","tier":"挑战"},{"id":12,"type":"single","stem":"传统屋面苫背时，在护板灰之上铺抹大麻刀灰的主要作用是","options":["粘结瓦件防止下滑","形成防水层并找平屋面","固定望板防止变形","提高屋面保温性能"],"answer":[1],"explanation":"苫背中大麻刀灰层位于护板灰之上，起防水和找平作用，为后续瓦瓦提供平整基层。粘结瓦件是瓦泥或灰浆的作用；固定望板靠钉钉；保温并非苫背主要功能，故其余项错。","tier":"基础"},{"id":13,"type":"single","stem":"古建筑瓦作中，底瓦铺设应遵循的压茬方向是","options":["自上而下、压六露四","自下而上、压六露四","自上而下、压四露六","自下而上、压四露六"],"answer":[1],"explanation":"底瓦应自下而上铺设，使上片压住下片，遵循压六露四，利于排水。自上而下会逆水搭接；压四露六露多易渗漏，故其余项错。","tier":"进阶"},{"id":14,"type":"single","stem":"筒瓦屋面中，盖筒瓦的灰浆应挤抹在筒瓦的","options":["两侧边棱","内弧面中部","外弧面顶部","瓦唇端头"],"answer":[0],"explanation":"盖筒瓦时灰浆抹在两侧边棱，坐入底瓦垄间挤实。内弧面中部灰浆无处挤压；外弧面顶部灰浆外露；瓦唇端头抹灰影响搭接，故其余项错。","tier":"基础"},{"id":15,"type":"single","stem":"古建筑屋面捉节夹垄时，筒瓦节缝处应使用","options":["素灰勾抹","麻刀灰勾抹","水泥砂浆填塞","油灰嵌填"],"answer":[1],"explanation":"捉节夹垄用麻刀灰勾抹筒瓦节缝，灰中麻刀可抗裂。素灰易裂；水泥砂浆与古建灰料不匹配；油灰多用于木作嵌缝，故其余项错。","tier":"基础"},{"id":16,"type":"single","stem":"传统瓦作中，屋脊砌筑前在脊位先砌的构件是","options":["当沟瓦","脊筒子","瓦条","吻兽"],"answer":[0],"explanation":"屋脊砌筑先在脊位砌当沟瓦，作为脊身基础并卡住底瓦垄。脊筒子是脊身构件，瓦条用于叠砌脊，吻兽是脊端装饰，均在当沟之后，故其余项错。","tier":"基础"},{"id":17,"type":"single","stem":"古建筑屋面檐头瓦件出现下垂、灰浆脱落但瓦件完好时，正确的修缮做法是","options":["整垄揭瓦重新苫背","揭取檐头数块瓦重做灰浆","在檐口下方加钉木条托住","用水泥砂浆从外部封堵缝隙"],"answer":[1],"explanation":"仅檐头灰浆失效而瓦件完好，可局部揭取檐头瓦重做灰浆，减少扰动。整垄揭瓦过度；加木条破坏外观；水泥封堵与古建材料不符，故其余项错。","tier":"进阶"},{"id":18,"type":"single","stem":"古建筑瓦作中，瓦件在屋面上运输时宜采用的方法是","options":["从檐口向上抛掷传递","用绳索捆绑后整体吊运","多人自下而上手递手传递","用滑板自脊向檐滑送"],"answer":[2],"explanation":"瓦件易碎，宜多人自下而上手递手传递。抛掷易碎；整体吊运需专用吊具且易碰撞；滑板下滑无法控制且易碰碎，故其余项错。","tier":"进阶"},{"id":19,"type":"single","stem":"古建筑屋面苫背完成后，铺瓦前对苫背层应进行的检查是","options":["表面是否光滑发亮","是否完全干燥无裂缝","灰层厚度是否均匀一致","是否已涂刷防水涂料"],"answer":[2],"explanation":"苫背层厚度均匀一致才能保证屋面坡度顺直、瓦面平整。光滑发亮非质量指标；苫背层并非要求完全干燥；古建苫背不涂防水涂料，故其余项错。","tier":"进阶"},{"id":20,"type":"single","stem":"传统瓦作中，瓦瓦时底瓦垄应保持的顺直控制方法是","options":["每垄拉线并随铺随校","凭经验目测找直","先铺完再统一调直","以檐口滴水为准向脊找直"],"answer":[0],"explanation":"每垄拉线并随铺随校可保证瓦垄顺直。目测误差大；铺完再调会扰动灰浆；仅以檐口为准无法控制全垄，故其余项错。","tier":"进阶"},{"id":21,"type":"single","stem":"传统屋面苫背时，在望板上先涂抹的灰浆层通常采用什么材料","options":["麻刀灰","月白灰","青灰","油灰"],"answer":[0],"explanation":"知识点为苫背打底用灰。麻刀灰掺入麻纤维，与望板粘结力强、抗裂，是苫背首层常用灰浆。月白灰多用于墙面或瓦面勾抹，不用于望板打底；青灰多用于勾瓦垄或调色；油灰多用于槛框或石活，不用于苫背打底。","tier":"基础"},{"id":22,"type":"single","stem":"底瓦铺挂时，相邻两块底瓦的搭接方向应如何确定","options":["上瓦压住下瓦","下瓦压住上瓦","两块瓦口对口对接","两块瓦侧边搭接"],"answer":[0],"explanation":"知识点为底瓦搭接方向。屋面排水需顺水搭接，上瓦压住下瓦，雨水顺瓦面流下不渗入。下瓦压上瓦会形成逆水缝而渗漏；口对口对接无搭接量必漏；侧边搭接是盖瓦或筒瓦的相邻关系，与上下搭接不是同一概念。","tier":"基础"},{"id":23,"type":"singl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底瓦与盖瓦的搭接，通常要求盖瓦压住底瓦的比例约为多少","options":["搭六露四","搭七露三","搭八露二","搭九露一"],"answer":[0],"explanation":"知识点为瓦件安装的压露关系。传统做法底瓦“压六露四”，即盖瓦搭压底瓦约六成、露出四成，既保证搭接防水又留出排水坡度。搭七露三、搭八露二、搭九露一均搭压过多，会抬高瓦垄、减少露明长度，影响排水与外观，非布瓦屋面常规做法。","tier":"进阶"},{"id":44,"type":"single","stem":"屋面苫背赶轧时，判断青灰背已轧至密实的现场经验标准是","options":["灰面泛出灰浆、脚踩不陷","灰面颜色由青转白","灰面出现细密裂纹","灰面能插入手指半寸"],"answer":[0],"explanation":"知识点为青灰背赶轧程度判断。赶轧到灰面泛浆、脚踩不下陷，说明灰料被压实、内部密实，是传统验收经验。颜色由青转白是干燥或泛碱现象；出现细密裂纹是收缩开裂，属缺陷；能插入手指说明未压实。","tier":"挑战"},{"id":45,"type":"single","stem":"修缮古建屋面时发现椽望糟朽严重但暂不具备揭顶条件，对局部渗漏点最恰当的传统临时处置是","options":["整坡满铺防水卷材压边","糟朽处剔补并做灰背局部修补","用水泥砂浆封堵渗漏缝隙","拆除渗漏点周围瓦件晾晒"],"answer":[1],"explanation":"知识点为不揭顶条件下的局部修缮原则。正确做法是剔补糟朽木件、按原做法补做灰背，维持传统构造。满铺卷材改变了原屋面构造；水泥砂浆刚性封堵与古建灰背体系不匹配且易裂；单纯拆瓦晾晒不解决糟朽与灰背失效问题。","tier":"挑战"},{"id":46,"type":"single","stem":"布瓦屋面瓦垄出现“一垄倒喝水”现象，其最可能的原因是","options":["该垄盖瓦搭接不足","该垄底瓦搭接过度","该垄瓦泥坐浆过厚","该垄边楞未用灰抹严"],"answer":[0],"explanation":"知识点为瓦垄渗漏原因判断。“倒喝水”指水从盖瓦搭接处倒灌，多因盖瓦搭接不足或搭接方向错误。底瓦搭接过度不会造成倒灌；坐浆过厚主要影响平整；边楞未抹严影响的是边垄防水，不是垄内倒喝水。","tier":"进阶"},{"id":47,"type":"single","stem":"古建屋面翼角部位瓦件安装时，与正身瓦垄相比应特别注意","options":["加大盖瓦搭接量","按冲趟分中排列瓦口","底瓦改用筒瓦","减少瓦泥坐浆厚度"],"answer":[1],"explanation":"知识点为翼角瓦作特点。翼角瓦垄呈扇形展开，需按冲趟分中排瓦口，使瓦垄均匀放射。加大搭接量、底瓦改筒瓦均非翼角通用做法；减少坐浆厚度会影响瓦件稳固。","tier":"进阶"},{"id":48,"type":"multi","stem":"传统屋面苫背施工中，下列做法符合分层要求的有","options":["护板灰随铺随轧","青灰背分两次铺轧","每层灰背干燥后再做上层","大麻刀灰层用于找平基层","灰背轧实后洒水养护"],"answer":[0,1,3],"explanation":"知识点为苫背分层施工要点。护板灰应随铺随轧，青灰背分两次铺轧以利密实，大麻刀灰层用于找平基层，三项均符合传统做法。每层灰背干燥后再做上层会造成层间结合不良；灰背轧实后洒水养护非传统苫背工序，且易造成表面泛浆起皮。","tier":"挑战"},{"id":49,"type":"single","stem":"在某歇山建筑屋面苫背时，因工期紧，瓦作班组打算在望板上先铺一层掺灰泥背，再直接坐瓦，下列哪一做法最符合传统苫背工序要求","options":["掺灰泥背分两层赶轧密实后，再在其上做青灰背并扎实","掺灰泥背一次铺够厚度，表面收光后直接坐瓦","掺灰泥背拍实后，趁湿即铺青灰背并一次踩实","掺灰泥背晾至半干后，刷素灰浆一道即开始坐瓦"],"answer":[0],"explanation":"知识点为传统苫背的层次与密实要求：一般先做掺灰泥背，分层赶轧密实，再做青灰背并扎实，待干后才瓦。一次铺够厚度表面收光不能保证内部密实，故B错；趁湿即铺青灰背易造成层间含水分过大、日后空鼓，故C错；晾至半干后刷素灰浆并不能代替青灰背的护背作用，故D错。","tier":"挑战"},{"id":50,"type":"multi","stem":"修缮一座清代硬山建筑屋面时，揭瓦后发现部分底瓦（板瓦）碎裂、盖瓦（筒瓦）松动，下列哪些做法符合传统瓦作修缮要求","options":["更换底瓦时选用同规格同色泽的旧瓦或仿旧瓦，搭接压茬到位","盖瓦松动但未碎裂者，可揭起后清理灰浆再按原垄坐灰盖回","底瓦碎裂处若在檐口，可仅用灰浆填塞裂缝后继续使用","揭瓦后对原瓦件按垄编号存放，复位时按编号归位","新换瓦件与原有瓦件色泽差异较大时，可待屋面整体做旧处理"],"answer":[0,1,3],"explanation":"知识点为古建屋面瓦件修缮的选配、归安与灰浆坐实要求。A选同规格同色泽瓦并保证搭接压茬，符合传统做法；B对未碎而松动的盖瓦可揭起清灰后按原垄坐灰盖回，是常见做法；D按垄编号存放并按号归位，能保证瓦垄顺直、瓦件匹配。C仅用灰浆填塞碎裂底瓦不能恢复其受力与防水功能，属错误做法；E新换瓦件色差较大应尽量预先选配或做旧后再安装，待整坡做旧会留下明显色差，不符合修缮要求。","tier":"挑战"},{"id":51,"type":"single","stem":"传统屋面苫背时，在护板灰之上铺泥背，泥背所用的灰泥通常按体积比调制，下列配比更符合传统做法的是","options":["白灰与黄土按1:2至1:3调匀","白灰与黄土按1:8至1:10调匀","白灰与砂子按1:1调匀","黄土与麦秸按3:1调匀"],"answer":[0],"explanation":"知识点：泥背灰泥配比。传统苫背泥背常用白灰与黄土体积比1:2至1:3，既有粘结力又不易开裂。1:8至1:10灰量过少，泥背强度低；白灰与砂子1:1是灰浆做法，不是泥背；黄土掺麦秸是传统打墙或垛泥用料，不是苫背泥背配比。"},{"id":52,"type":"single","stem":"苫背工序中，在泥背干燥后、铺瓦之前所幔的灰层，行内通常称为","options":["护板灰","青灰背","月白灰","抱头灰"],"answer":[1],"explanation":"知识点：苫背层次名称。泥背之上所幔的细灰层为青灰背，起防水找平作用。护板灰是望板之上的第一道灰；月白灰多用于墙面或椽头饰面；抱头灰是筒瓦与底瓦搭接处的灰，均非泥背之上的找平层。"},{"id":53,"type":"single","stem":"底瓦铺设时，瓦与瓦之间在纵向搭接的密实程度应达到","options":["搭六露四","三搭三露","压六露四","对缝平接"],"answer":[2],"explanation":"知识点：底瓦搭接。底瓦铺设讲究压六露四，即上瓦压下瓦十分之六、露出十分之四，搭接密实利于排水防渗。搭六露四、三搭三露搭接量不足或说法不规范；对缝平接则无搭接，必然渗漏。"},{"id":54,"type":"single","stem":"在望板上先钉铺一层灰，其作用是隔绝望板与上层灰背并防腐，这道灰称为","options":["护板灰","青灰背","泥背","素灰"],"answer":[0],"explanation":"知识点：护板灰作用。护板灰直接铺在望板上，隔绝上层灰背水分、保护望板。青灰背和泥背均在护板灰之上；素灰是笼统说法，不是这道工序的专名。"},{"id":55,"type":"single","stem":"合瓦屋面中，底瓦与盖瓦的垄数关系通常表现为","options":["底瓦垄数与盖瓦垄数相等","盖瓦垄数比底瓦垄数多一垄","底瓦垄数比盖瓦垄数多一垄","底瓦垄数比盖瓦垄数多两垄"],"answer":[1],"explanation":"知识点：合瓦垄数关系。合瓦屋面盖瓦压在两垄底瓦之上，故盖瓦垄数比底瓦垄数多一垄。垄数相等或底瓦多出都是对搭接关系理解错误。"},{"id":56,"type":"single","stem":"修缮旧瓦面时发现少量底瓦碎裂，但相邻瓦件完好，较适宜的做法是","options":["揭除整垄底瓦重新铺","只更换碎裂底瓦并做好搭接","在碎裂底瓦上直接坐灰铺新瓦","将碎裂底瓦取出后空缺不补"],"answer":[1],"explanation":"知识点：瓦面局部修缮。少量碎裂且相邻完好时应只换碎裂瓦，注意上下搭接与坐灰，减少对原状扰动。揭整垄费工且破坏原状；直接坐灰铺新瓦会改变搭接厚度；空缺不补必然渗漏。"},{"id":57,"type":"single","stem":"筒瓦屋面中，筒瓦与底瓦之间的空隙用灰填塞，这道灰的作用主要是","options":["装饰瓦垄外观","粘结并防止雨水倒灌","增加屋面自重","调整瓦垄垂直度"],"answer":[1],"explanation":"知识点：筒瓦夹垄灰作用。筒瓦两侧与底瓦间填灰，主要起粘结和阻水作用，防止风雨从搭接处倒灌。装饰、增重、调垂直度均非其主要功能。"},{"id":58,"type":"single","stem":"布瓦时，底瓦坐灰的饱满程度对屋面防水影响很大，传统要求坐灰应","options":["只在瓦头处坐灰","满坐灰并挤出多余灰","坐灰至瓦长一半","不坐灰直接干摆"],"answer":[1],"explanation":"知识点：底瓦坐灰要求。底瓦应满坐灰，使瓦件与灰背密贴，多余灰挤出并抹平，才能有效防水。只坐瓦头、坐一半或不坐灰都会形成空隙渗水。"},{"id":59,"type":"multi","stem":"关于古建筑屋面苫背与瓦作修缮，下列做法符合传统工艺要求的有","options":["泥背干燥后再幔青灰背","底瓦铺设做到压六露四","筒瓦檐口第一块加瓦钉固定","瓦面局部碎裂时整垄揭除重铺","青灰背未干即铺瓦以增强粘结"],"answer":[0,1,2],"explanation":"知识点：苫背与瓦作修缮要点。泥背干后幔青灰背、底瓦压六露四、檐口筒瓦加钉均为传统正确做法。局部碎裂整垄揭除属过度维修；青灰背未干铺瓦会破坏灰背并影响防水，故不选。"},{"id":60,"type":"single","stem":"传统屋面苫背施工中，在望板之上先铺一层护板灰的主要作用是防止泥背中的水分直接侵蚀望板，这层护板灰通常应选用哪种灰料","options":["泼灰加麻刀调制的灰浆","纯白灰膏掺水泥的混合灰浆","石灰砂浆掺细砂的抹面灰","黏土浆掺麦秸的草泥灰"],"answer":[0],"explanation":"知识点：护板灰用料。护板灰用泼灰加麻刀调制，质地柔和、透气且与木望板结合好。错项一：掺水泥后刚性大、收缩开裂且不透气，古建苫背忌用水泥。错项二：掺细砂的石灰砂浆是抹面做法，用于护板灰会开裂脱层。错项三：黏土草泥是苫背的主体泥背用料，不能当护板灰直接贴在望板上。"},{"id":61,"type":"single","stem":"古建屋面苫背时，泥背通常需要分层夯拍，每层虚铺厚度一般控制在多少厘米左右，才能保证拍实后密实而不开裂","options":["5至7厘米","15至20厘米","25至30厘米","35至40厘米"],"answer":[0],"explanation":"知识点：泥背分层虚铺厚度。泥背分层虚铺约5至7厘米，逐层拍实，过厚则内部不实、干缩开裂。错项一：15至20厘米太厚，一次拍不透。错项二：25至30厘米远超常规，必然分层空鼓。错项三：35至40厘米更不可能拍实，属明显超厚。"},{"id":62,"type":"single","stem":"布瓦屋面底瓦垄的瓦件自下而上叠压铺设时，相邻两块底瓦的搭接长度应满足的要求是","options":["搭接不少于瓦长的三分之二","搭接不少于瓦长的二分之一","搭接不少于瓦长的三分之一","搭接不少于瓦长的四分之一"],"answer":[0],"explanation":"知识点：底瓦搭接要求。底瓦自下而上压茬，搭接不少于瓦长的三分之二，才能保证不渗漏。错项一：二分之一搭接偏短，遇骤雨易潲水。错项二：三分之一搭接不足，渗漏风险大。错项三：四分之一搭接远不够，属错误做法。"},{"id":63,"type":"single","stem":"筒瓦屋面中，盖在两条底瓦垄之间的筒瓦，其相邻两块筒瓦的搭接长度通常应控制为","options":["搭接不少于筒瓦长的二分之一","搭接不少于筒瓦长的三分之一","搭接不少于筒瓦长的四分之一","搭接不少于筒瓦长的五分之一"],"answer":[0],"explanation":"知识点：筒瓦搭接。筒瓦搭接不少于瓦长的二分之一，保证盖缝严密。错项一：三分之一偏短，雨水易从搭接缝倒灌。错项二：四分之一更短，不满足盖缝要求。错项三：五分之一过短，明显不符合传统做法。"},{"id":64,"type":"single","stem":"传统瓦作中，底瓦垄的瓦件应遵循的铺放方向是","options":["自檐口向脊部自下而上压茬","自脊部向檐口自上而下压茬","自中间向两端分别压茬","自两端向中间分别压茬"],"answer":[0],"explanation":"知识点：底瓦铺放方向。底瓦自檐口向屋脊自下而上叠压，使水顺茬下流。错项一：自上而下压茬会形成倒茬，水从搭接缝倒灌。错项二：由中间向两端铺会形成双向倒茬。错项三：由两端向中间铺同样形成倒茬，均属错误工序。"},{"id":65,"type":"single","stem":"古建屋面苫背完成并经验收后，在瓦瓦之前通常还需在苫背层表面进行的一道工序是","options":["刷一道青灰浆并赶轧压实","刷一道水泥净浆封闭","铺一层塑料薄膜防潮","涂一层沥青防水层"],"answer":[0],"explanation":"知识点：苫背后的打底工序。苫背验收后刷青灰浆并赶轧压实，形成与瓦件结合的面层。错项一：水泥净浆刚性大、不透气，古建忌用。错项二：塑料薄膜隔绝透气，会使苫背内部积潮。错项三：沥青防水层属现代做法，与传统苫背体系不符。"},{"id":66,"type":"single","stem":"古建筒瓦屋面中，位于檐口最下一块筒瓦下端、用以封住瓦垄端头的构件称为","options":["勾头","滴水","钉帽","当沟"],"answer":[0],"explanation":"知识点：檐口瓦件名称。勾头即筒瓦垄端头的封口瓦，带瓦当纹样。错项一：滴水是底瓦垄端头的封口瓦，位置在底瓦垄而非筒瓦垄。错项二：钉帽是盖在檐口钉孔上的小构件。错项三：当沟是屋脊与瓦垄交接处的构件，位置不对。"},{"id":67,"type":"single","stem":"传统布瓦屋面的屋脊砌筑中，位于正脊两端、起收头封护作用的构件通常称为","options":["吻兽","垂兽","仙人","套兽"],"answer":[0],"explanation":"知识点：脊饰构件位置。吻兽置于正脊两端收头。错项一：垂兽置于垂脊下端，位置不同。错项二：仙人是檐角小跑构件，不在正脊两端。错项三：套兽套在翼角仔角梁端头，位置也不对。"},{"id":68,"type":"single","stem":"古建瓦作中，筒瓦屋面相邻两垄底瓦之间的空隙称为蚰蜒当，其宽度应满足的要求是","options":["以能盖住筒瓦两侧压边为准","以能露出底瓦两侧边棱为准","以两垄底瓦刚好相碰为准","以两垄底瓦之间留出一指宽缝为准"],"answer":[0],"explanation":"知识点：蚰蜒当宽度控制。蚰蜒当以筒瓦能盖住两侧底瓦边棱为准，保证盖缝严密。错项一：露出边棱则筒瓦盖不住，渗漏。错项二：底瓦相碰则无筒瓦灰浆填充空间，无法压边。错项三：留一指宽缝筒瓦盖不住，同样渗漏。"},{"id":69,"type":"single","stem":"某古建修缮工地，工人正在苫背，现场发现已铺泥背局部因天气骤冷出现表面起皮，正确的处置方式是","options":["铲除起皮部分重新补拍同配比泥背","在起皮表面再抹一层新泥背盖住","刷一层素水泥浆后继续苫背","待其自然干燥后直接瓦瓦"],"answer":[0],"explanation":"知识点：泥背受冻起皮的处理。起皮说明表层与下层结合已破坏，应铲除重补。错项一：直接覆盖新泥背，新旧层间夹有起皮空鼓，日后脱层。错项二：刷水泥浆不能解决起皮层的空鼓问题。错项三：带病直接瓦瓦，隐患留在屋面内部。"},{"id":70,"type":"multi","stem":"古建布瓦屋面苫背施工中，下列做法符合传统工艺要求的有","options":["泥背分层拍实后再苫下一层","每层泥背干至七八成再苫上层","泥背中掺入适量麻刀增强拉结","为赶工期在湿泥背上直接苫上层","泥背拍实后表面洒水养护防止干裂"],"answer":[0,1,2],"explanation":"知识点：泥背分层施工要求。分层拍实、干至七八成再苫上层、掺麻刀增强拉结，均是传统做法。错项一：湿泥背上直接苫上层，下层未干会造成整体空鼓开裂。错项二：泥背拍实后洒水养护并非古建苫背常规工序，湿养护反而影响层间结合。"},{"id":71,"type":"single","stem":"传统屋面苫背施工中，在护板灰之上铺打泥背时，每层泥背的虚铺厚度通常应控制在","options":["60～100mm","100～150mm","150～200mm","200～250mm"],"answer":[1],"explanation":"知识点：泥背分层虚铺厚度。泥背分层夯实是苫背关键工序，每层虚铺100～150mm，夯实后约减半，利于密实和干燥。A项60～100mm偏薄，层数过多易分层起壳；C项150～200mm偏厚，夯打不易密实；D项200～250mm过厚，内部难干燥、易开裂，均为看似接近但不合工序要求的数值。"},{"id":72,"type":"single","stem":"苫背时在泥背中掺入适量麻刀或麦秸，其主要作用是","options":["提高泥背表面观感细腻度","增强泥背抗拉性能并减少干缩裂缝","加快泥背内部水分的蒸发速度","降低泥背与木基层之间的粘结力"],"answer":[1],"explanation":"知识点：灰泥背掺加纤维材料的作用。麻刀、麦秸等纤维在泥背中起拉结作用，能提高抗拉性能、抑制干缩裂缝。A项掺纤维后表面反而变粗糙，与观感细腻相悖；C项纤维不具促蒸发功能，掺入还会增加内部保湿；D项纤维提高整体连接，不会降低粘结力，属相邻概念误用。"},{"id":73,"type":"single","stem":"筒瓦屋面瓦瓦时，底瓦（板瓦）搭接应遵循的朝向是","options":["由檐口向屋脊方向逐块搭压","由屋脊向檐口方向逐块搭压","左右相邻板瓦相互对缝搭接","上下板瓦大头朝下小头朝上搭接"],"answer":[1],"explanation":"知识点：板瓦搭接方向。底瓦应大压小、由屋脊向檐口逐块搭压，使水流顺搭接方向排向檐口，防止渗水。A项方向相反，水会顶入搭缝；C项对缝搭接无顺水压茬，必然漏雨；D项板瓦安装应小头朝上（大头朝下）搭压方向仍须由上向下，该项把搭压方向搞错，属易混细节。"},{"id":74,"type":"single","stem":"在古建筑瓦作中，盖筒瓦时相邻两垄筒瓦之间的底瓦垄称为","options":["盖垄","底垄","边垄","分垄"],"answer":[1],"explanation":"知识点：瓦垄名称。筒瓦屋面中筒瓦所覆之垄为盖垄，筒瓦之间由板瓦铺成的排水垄为底垄。A项盖垄是筒瓦所在垄，与题干相反；C项边垄指屋面两侧靠垂脊的垄，非两筒瓦之间；D项分垄不是瓦垄的规范称谓，属相邻术语干扰。"},{"id":75,"type":"single","stem":"屋面檐头勾滴（勾头、滴水）安装时，勾头应压在滴水之上的主要原因是","options":["使勾头钉帽便于钉入连檐固定","保证檐口排水时滴水不被掀起","便于檐口瓦件的拆卸更换","增加檐口部位瓦件的叠压层次"],"answer":[1],"explanation":"知识点：檐头勾滴叠压关系。勾头压滴水可形成顺水搭接，使雨水沿滴水舌部滴落而不掀动瓦件。A项钉帽固定靠钉入连檐，与压滴水的排水功能无直接因果；C项拆卸便利与叠压方向无关；D项叠压层次是现象而非设置此关系的原因，属因果错位干扰。"},{"id":76,"type":"single","stem":"传统青瓦屋面修缮中，发现局部底瓦碎裂但盖垄筒瓦完好，正确的处置方式是","options":["只更换碎裂底瓦并恢复原搭接","将整垄底瓦连同筒瓦全部揭换","在碎裂底瓦上直接加铺一层新瓦","用灰浆将碎瓦缝隙填实后继续使用"],"answer":[0],"explanation":"知识点：瓦件局部修缮原则。仅底瓦碎裂时应揭起对应筒瓦，更换碎瓦并恢复原搭接压茬，保留完好瓦件。B项整垄揭换扩大工程量，损坏原有完好构件；C项叠铺新瓦改变屋面厚度与搭接关系；D项以灰浆填缝不能恢复瓦件承载与排水，均属似是而非的做法。"},{"id":77,"type":"single","stem":"古建筑屋面捉节夹垄时，筒瓦之间的接缝处理通常应","options":["用灰浆将筒瓦接缝完全填满抹平","在接缝处用灰夹垄并勾抹密实","仅将接缝表面涂灰不填内部","接缝处留空以便屋面透气"],"answer":[1],"explanation":"知识点：捉节夹垄工艺。捉节指筒瓦接缝勾灰，夹垄指盖垄两侧用灰夹实，二者配合使接缝密实又留出合理灰口。A项完全填满抹平会掩盖瓦垄轮廓且不利伸缩；C项只涂表面不填内部起不到防渗作用；D项留空会导致雨水顺缝渗入，均不符合传统做法。"},{"id":78,"type":"single","stem":"屋面瓦瓦前对木基层进行“号垄”的主要目的是","options":["确定各垄瓦在屋面上的横向位置","标记木基层需要刨光的范围","计算屋面所需瓦件的总数量","确定椽子的间距是否均匀"],"answer":[0],"explanation":"知识点：号垄的作用。号垄是在屋面上按中垄、边垄等排出各瓦垄的横向位置，保证瓦垄顺直、垄距均匀。B项刨光范围与号垄无关；C项算瓦量属备料工作；D项椽距检查是基层验收内容，均非号垄目的，属相邻工序概念干扰。"},{"id":79,"type":"single","stem":"在苫背施工中，护板灰的主要作用是","options":["作为泥背与木基层之间的隔离层","填塞望板缝隙并起基层找平作用","提高屋面整体的防水性能","增加泥背与望板之间的粘结力"],"answer":[1],"explanation":"知识点：护板灰功能。护板灰铺于望板之上，用于填塞望板缝隙、保护望板并初步找平，为上层苫背提供基层。A项护板灰并非隔离层；C项真正防水靠瓦面及灰背体系，单靠护板灰不够；D项其功能重在填缝找平而非单纯增加粘结，属功能相近易混项。"},{"id":80,"type":"single","stem":"某古建筑屋面施工时逢雨季，已苫好的泥背尚未干透，正确的处置是","options":["立即进行瓦瓦以保护泥背","待泥背干燥后再进行瓦瓦","在泥背表面撒干灰吸湿后继续","先铺一层塑料膜再瓦瓦"],"answer":[1],"explanation":"知识点：苫背与瓦瓦的工序衔接。泥背含水率高时瓦瓦会将水分封在内部，导致木基层受潮、灰背松软，故须待泥背干燥后再瓦瓦。A项抢工封盖易造成隐患；C项撒干灰只能吸表层湿气，内部仍不干；D项铺塑料膜隔断上下结合且不利透气，均属施工现场常见的错误应急做法。"},{"id":81,"type":"single","stem":"屋面翼角部位瓦瓦时，与正身瓦垄相比，翼角瓦垄的显著特点是","options":["垄距由翼角向正身逐渐增大","瓦垄呈放射状且垄距逐渐收窄","瓦件规格逐块增大以填满空间","底瓦搭接长度较正身明显加长"],"answer":[1],"explanation":"知识点：翼角瓦垄排布。翼角起翘处瓦垄呈放射状分布，随翼角收分垄距逐渐收窄，需用瓦件调整。A项垄距变化方向说反；C项翼角多用规格调整而非逐块放大瓦件；D项搭接长度由瓦件模数决定，不因翼角而整体加长，属邻近概念误配。"},{"id":82,"type":"single","stem":"传统屋面苫背时，在望板上先铺一层护板灰的主要作用是什么","options":["防止望板受潮腐朽并增强与上层灰浆的粘结","提高屋面的整体保温隔热性能","找平望板表面高低不平的缺陷","增加屋面自重以抵抗风力掀瓦"],"answer":[0],"explanation":"护板灰是苫背的第一道灰，作用是保护望板并作为结合层。保温隔热主要靠苫背层整体厚度而非护板灰；找平靠的是后续灰层；抗风揭靠瓦件固定和屋面自重整体，不是单靠护板灰。"},{"id":83,"type":"single","stem":"布瓦屋面底瓦的搭接方向应遵循的原则是","options":["自上而下、压槎顺水","自下而上、压槎顺水","自左向右、压槎顺水","自右向左、压槎顺水"],"answer":[0],"explanation":"底瓦铺设遵循压六露四或压七露三，搭接必须自上而下使上片压住下片，水才能顺流而下。自下而上会使下片压住上片形成倒喝水；左右向铺法不是传统底瓦搭接方向。"},{"id":84,"type":"single","stem":"古建筒瓦屋面中，筒瓦与底瓦之间的空隙通常用什么材料填充以保证瓦垄稳固","options":["灰浆","干土","砂粒","碎瓦片"],"answer":[0],"explanation":"筒瓦扣在底瓦垄上后，瓦翅与底瓦之间用灰浆填塞抹实，使筒瓦坐稳。干土、砂粒无粘结力；碎瓦片会顶起筒瓦导致瓦面不平。"},{"id":85,"type":"single","stem":"传统瓦作中，屋面檐口部位的瓦件最容易出现松动脱落，其主要原因是","options":["檐口部位受风雨冲刷和冻融交替作用最强","檐口部位瓦件规格与屋面中部不同","檐口部位不使用灰浆粘结","檐口部位苫背层厚度大于屋面中部"],"answer":[0],"explanation":"檐口处于屋面最外端，承受雨水冲刷、风力掀揭和冻融循环最剧烈。檐口瓦件规格与中部一致；檐口同样使用灰浆；檐口苫背层通常不厚于中部。"},{"id":86,"type":"single","stem":"在苫背施工中，若发现已苫好的灰背表面出现大量网状细微裂纹，正确的处置方法是","options":["将裂纹部位铲除重新苫抹","在裂纹表面直接再刷一层灰浆覆盖","用素水泥浆灌缝后继续施工","待其自然干燥后直接铺瓦"],"answer":[0],"explanation":"网状裂纹说明灰背收缩开裂，已丧失整体防水性，必须铲除重做。表面再刷灰浆只是遮盖，内部仍开裂；水泥浆与传统灰背材质不匹配；直接铺瓦会留下渗漏隐患。"},{"id":87,"type":"single","stem":"古建瓦作中，底瓦铺设的压六露四是指","options":["每片底瓦被上一片压住六成、露出四成","每片底瓦被上一片压住四成、露出六成","底瓦搭接长度为瓦长的六倍、露出四倍","底瓦垄间距为瓦宽的六成、灰浆厚四成"],"answer":[0],"explanation":"压六露四指底瓦上下搭接时，上片压住下片约六成、下片露出约四成。压四露六搭接过少易渗漏；其余选项是对压露比例的曲解。"},{"id":88,"type":"single","stem":"传统瓦作修缮中，更换屋面局部破碎底瓦时，对相邻完好瓦件的正确处理是","options":["轻拿轻放、按原搭接关系复位","一律拆除后统一重铺","用灰浆将相邻瓦件粘死防止再动","将相邻瓦件搭接方向改为顺水即可"],"answer":[0],"explanation":"局部更换应尽量保留完好瓦件，拆动时轻拿轻放并按原位复原搭接关系。全部拆除会扩大工程量并破坏原状；粘死相邻瓦件不利后续维修；搭接方向本已顺水无需更改。"},{"id":89,"type":"single","stem":"古建屋面瓦件安装时，檐头勾头瓦的钉帽处理应做到","options":["钉帽盖住钉孔并做灰浆封护","钉帽外露以方便日后拔钉","钉帽与瓦面齐平即可不封灰","钉帽涂防锈漆后不封灰"],"answer":[0],"explanation":"勾头瓦用钉固定后，钉帽须盖住钉孔并用灰浆封护，防止雨水沿钉孔渗入。钉帽外露会锈蚀渗水；不封灰同样渗水；防锈漆不能替代灰浆封护。"},{"id":90,"type":"single","stem":"苫背施工中，每层灰背的干燥程度对下一层施工的影响是","options":["上一层须达到适当干燥后再进行下一层","上一层越湿越有利于层间结合","上一层必须完全干透才能做下一层","上一层干燥与否对下一层没有影响"],"answer":[0],"explanation":"传统苫背讲究层间结合，上一层需达到适当干燥程度，既不过湿也不过干，才能保证层间粘结。过湿做下层会造成内部水分封闭；完全干透会使层间结合不良；干燥程度直接影响质量。"},{"id":91,"type":"single","stem":"某古建修缮工程中，施工人员在已苫好的灰背上直接踩踏行走搬运瓦件，这种做法导致的主要问题是","options":["灰背被踩踏密实并产生局部凹陷开裂","灰背表面被磨光更利于铺瓦","灰背厚度被均匀压实更加密实","灰背吸水率降低有利于防水"],"answer":[0],"explanation":"未干灰背被踩踏会造成局部凹陷、密实度不均并产生裂缝，破坏防水层。磨光、均匀压实、降低吸水率都不是踩踏带来的有益结果，反而掩盖了破坏。"},{"id":92,"type":"multi","stem":"传统瓦作修缮中，判断底瓦需要更换的依据包括哪些","options":["瓦件有明显裂缝或断裂","瓦件表面有轻微灰尘附着","瓦件搭接处出现渗漏痕迹且瓦体酥碱","瓦件颜色与相邻瓦略有差异"],"answer":[0,2],"explanation":"裂缝断裂和酥碱渗漏是必须更换的实质缺陷。轻微灰尘可清理无需更换；颜色略有差异属正常现象，不影响使用功能。"},{"id":93,"type":"single","stem":"传统屋面苫背时，在护板灰之上、瓦泥之下通常还要铺一层什么材料来起防潮和找平作用？","options":["月白灰","青灰背","泥背","素灰"],"answer":[1],"explanation":"知识点是苫背分层做法：护板灰之上常做青灰背，起防潮、找平、承瓦作用。月白灰多用于墙面或檐口刷浆；泥背一般用于早期做法或底衬，不作这道工序的找平层；素灰是水泥灰浆，不属传统苫背材料。"},{"id":94,"type":"single","stem":"布瓦屋面底瓦（板瓦）铺设时，板瓦的凹面应朝哪个方向？","options":["朝上承水","朝下扣盖","朝左搭接","朝右搭接"],"answer":[0],"explanation":"知识点是底瓦与盖瓦的区别：底瓦凹面朝上形成瓦沟排水，盖瓦凸面朝上扣压在两列底瓦搭接处。朝下扣盖是盖瓦的做法；朝左或朝右搭接是筒瓦搭接方向的说法，不是板瓦凹面的朝向。"},{"id":95,"type":"single","stem":"屋面瓦垄自檐口向屋脊方向逐块搭接时，正确的压茬方向是？","options":["上瓦压下瓦","下瓦压上瓦","左右交替压","按瓦件编号压"],"answer":[0],"explanation":"知识点是瓦件搭接的防水原理：水往低处流，必须上方瓦压住下方瓦，使水顺瓦面下泄。下瓦压上瓦会形成倒茬进水；左右交替压和按编号压都不是搭接方向的决定因素。"},{"id":96,"type":"single","stem":"传统瓦作中，用来封护正脊两端与垂脊交接部位、防止雨水从缝隙渗入的构件是？","options":["吻兽","垂兽","套兽","瓦当"],"answer":[2],"explanation":"知识点是脊饰构件功能：套兽套在翼角仔角梁端头，封护梁头并防雨。吻兽用于正脊两端；垂兽用于垂脊下部；瓦当是筒瓦檐口封头瓦，均不封护该交接部位。"},{"id":97,"type":"single","stem":"修缮古建筑屋面时，发现原有筒瓦多数完好、仅少量碎裂，正确的做法通常是？","options":["整垄全部揭换新瓦","只换碎裂瓦并按原做法归安","把筒瓦全部翻面继续使用","改用现代水泥瓦替代"],"answer":[1],"explanation":"知识点是古建修缮的最小干预原则：能保留的原构件应原位归安，只更换残损件。整垄揭换会破坏历史信息和相邻瓦件；翻面使用会破坏瓦件外形和搭接；现代水泥瓦替代改变原做法，均不符合修缮要求。"},{"id":98,"type":"single","stem":"在苫背施工中，判断灰背是否达到可继续铺瓦的干湿度，主要依据是？","options":["灰背表面颜色深浅","灰背含水率与压实程度","施工当天的气温高低","灰背所在屋面的朝向"],"answer":[1],"explanation":"知识点是苫背质量控制：灰背须在适当含水率下分层压实，过湿易开裂、过干难密实。表面颜色只反映表层；气温和屋面朝向影响干燥速度，但不能单独作为铺瓦依据。"},{"id":99,"type":"single","stem":"瓦作施工中，檐口第一块勾头（瓦当）的安装位置应满足什么要求？","options":["略低于相邻底瓦","与相邻底瓦齐平","略高于相邻底瓦","按檐口长度均分调整"],"answer":[0],"explanation":"知识点是檐口瓦件标高控制：勾头略低于相邻底瓦，使檐口排水顺畅、不兜水。齐平易造成檐口积水；略高会形成倒坡挡水；按长度均分是排瓦当位置的方法，不是标高要求。"},{"id":100,"type":"single","stem":"古建筑屋面出现局部渗漏，揭瓦检查发现渗漏点上方有一处瓦垄搭接错位，正确的修缮顺序是？","options":["先做防水涂料再复位瓦件","先复位错位瓦件再检查灰背","先更换整条瓦垄再查灰背","先刷浆封闭缝隙再复位瓦件"],"answer":[1],"explanation":"知识点是渗漏修缮的查因顺序：先恢复瓦件搭接、检查灰背是否受损，再决定是否需补灰或换瓦。先做涂料、先换整垄、先刷浆封闭都跳过了查因环节，可能掩盖灰背缺陷。"},{"id":101,"type":"single","stem":"传统瓦作中，用于屋脊砌筑和瓦件坐浆的传统灰浆材料通常是？","options":["麻刀灰","水泥砂浆","石膏灰","石灰砂浆"],"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椽望与苫背层，因基层下沉或苫背空鼓是塌垄主因。正脊垂脊多影响垄头垄尾；勾头滴水属檐口瓦件；连檐瓦口影响檐口平直，均非塌垄首要原因。"},{"id":122,"type":"single","stem":"传统屋面“分中号垄”时，若屋面为奇数垄，正中间的一垄应安排为","options":["底瓦垄","盖瓦垄","滴水垄","勾头垄"],"answer":[1],"explanation":"知识点为分中号垄规则。正确项奇数垄时中间为盖瓦垄，使两坡对称、垄沟居中。底瓦垄居中会使盖瓦偏斜；滴水垄、勾头垄属檐口瓦件名称，不是垄的排布类型。"},{"id":123,"type":"single","stem":"修缮旧屋面时，发现原有底瓦可继续使用但部分盖瓦碎裂，正确的处置方式是","options":["底瓦盖瓦全部揭除重铺","只换碎裂盖瓦并重新夹垄","揭除碎裂盖瓦及相邻底瓦","将碎裂盖瓦翻转作底瓦用"],"answer":[1],"explanation":"知识点为旧瓦修缮原则。正确项只换碎裂盖瓦并重新夹垄，保留可用底瓦，符合修旧如旧。全部揭除重铺浪费旧件且扰动基层；揭相邻底瓦扩大扰动范围；碎裂盖瓦翻转作底瓦强度不足且尺寸不合。"},{"id":124,"type":"single","stem":"传统瓦作中“捉节夹垄”工序里的“捉节”是指","options":["用灰将盖瓦垄节缝勾抹严实","将瓦垄逐垄拍打顺直","在底瓦垄内填塞灰浆","调整勾头瓦的出檐尺寸"],"answer":[0],"explanation":"知识点为捉节夹垄含义。正确项捉节是用灰勾抹盖瓦垄节缝，防雨水从节缝渗入。拍打顺直是瓦瓦时找直工序；底瓦垄填灰属夹垄内容；调整勾头出檐属檐口工序，均非捉节。"},{"id":125,"type":"single","stem":"屋面苫背时，若在雨季施工且灰背未干即遇雨，正确的处置是","options":["雨后立即继续上层苫背","待雨停表面收水后赶轧","用草帘覆盖后继续施工","雨停后铲除表层重新苫背"],"answer":[3],"explanation":"知识点为雨季苫背处置。正确项雨停后铲除表层重新苫背，因雨水冲刷浸泡已破坏灰背结构与粘结。立即继续会使上下层脱开；仅收水赶轧无法恢复已破坏的粘结；草帘覆盖不能阻止雨水渗入灰背。"},{"id":126,"type":"multi","stem":"以下关于古建筑屋面瓦件安装的操作要点，正确的有哪些","options":["底瓦小头朝下、大头朝上","盖瓦小头朝上、大头朝下","檐口第一块底瓦应出檐适量","瓦垄应用线绳找直后再瓦瓦","每块瓦均应坐灰饱满密实"],"answer":[0,2,3],"explanation":"知识点为瓦件安装要点。正确项底瓦小头朝下大头朝上利于搭接排水；檐口底瓦出檐适量防尿檐；用线绳找直保证瓦垄顺直。盖瓦应小头朝下大头朝上，与底瓦相反，故该项错；坐灰应饱满但并非每块瓦都满坐，檐口等部位需留空隙通气，故该项错。"},{"id":127,"type":"single","stem":"传统屋面苫背时，泥背拍实后表面呈现哪种状态即可进行灰背苫抹","options":["表面微湿但无明水，指压有浅窝","表面完全干燥开裂，敲击声音清脆","表面泛白结皮，脚踩不留痕迹","表面有积水，泥浆仍可流动"],"answer":[0],"explanation":"知识点为苫背工序中泥背与灰背的衔接条件。泥背拍实后需晾至表面微湿无明水、指压有浅窝时苫灰背，才能粘结牢固。表面干燥开裂说明失水过多，灰背易空鼓；表面泛白结皮说明已过干，粘结力下降；表面有积水则灰背无法与泥背结合，会形成隔离层。"},{"id":128,"type":"single","stem":"古建瓦面苫背中，传统做法在泥背与灰背之间常铺设一层材料以增强整体性并防止灰泥直接渗入泥背，该层材料是","options":["麻刀或麻丝","青灰浆","生桐油","净白灰"],"answer":[0],"explanation":"知识点为苫背分层构造。泥背与灰背之间铺麻刀或麻丝，可拉结两层、防止灰浆渗入泥背导致分层。青灰浆是灰背的调制材料，不是层间拉结材料；生桐油多用于瓦件或木构件防腐，不铺在泥灰之间；净白灰是灰背原料，直接铺撒起不到拉结作用。"},{"id":129,"type":"single","stem":"筒瓦屋面檐口第一块瓦件应选用下列哪种瓦件，才能保证檐口排水顺畅并封堵瓦垄端头","options":["勾头瓦","滴水瓦","筒瓦","板瓦"],"answer":[0],"explanation":"知识点为檐口瓦件配置。勾头瓦带瓦当，扣在檐口筒瓦垄端头，起封堵和装饰作用。滴水瓦用于底瓦垄檐口，与勾头配合形成檐口；筒瓦是屋面覆瓦主体，不用于端头封堵；板瓦是底瓦材料，不承担封头功能。"},{"id":130,"type":"single","stem":"底瓦铺设时，传统做法要求“压六露四”或“压七露三”，其中“压六露四”指的是","options":["上下两板瓦搭接长度为瓦长的六成，露出四成","板瓦压入灰泥的深度为六成，露出四成","每垄板瓦六成坐浆、四成干摆","板瓦六成用整瓦、四成用碎瓦"],"answer":[0],"explanation":"知识点为底瓦搭接比例。压六露四指上下两块板瓦搭接长度占瓦长六成，外露四成，搭接充分才能防漏。压入灰泥深度、坐浆干摆比例、整碎瓦搭配均与“压六露四”这一搭接术语无关。"},{"id":131,"type":"single","stem":"瓦面修缮时发现局部筒瓦松动但瓦件完好，正确的处置方法是","options":["揭下松动筒瓦，清理旧灰后重新坐灰安放","在松动筒瓦表面涂刷灰浆后压实","用铁钉将松动筒瓦钉入底瓦固定","在松动筒瓦两侧塞入碎瓦片挤紧"],"answer":[0],"explanation":"知识点为瓦件松动修缮工艺。正确做法是揭下瓦件、清理旧灰、重新坐灰安放，保证粘结和防水。表面涂灰不能恢复内部粘结；铁钉固定会破坏瓦件并造成渗漏通道；塞碎瓦片只是临时挤紧，不能形成有效灰浆粘结，易再次松动。"},{"id":132,"type":"single","stem":"古建屋面苫背用灰背的调制中，加入麻刀的主要作用是","options":["提高灰背抗拉强度，减少干缩裂缝","加快灰背干燥速度，缩短工期","降低灰背吸水率，增强防水","增加灰背颜色深度，便于检查"],"answer":[0],"explanation":"知识点为灰背材料性能。麻刀在灰背中起拉结作用，提高抗拉强度、抑制干缩裂缝。麻刀不加快干燥，反而可能延缓；不显著降低吸水率，防水靠灰背密实和瓦面；不改变灰背颜色，颜色与麻刀无关。"},{"id":133,"type":"single","stem":"布瓦屋面中，底瓦与盖瓦的排列关系是","options":["底瓦垄与盖瓦垄相间排列，盖瓦扣在两垄底瓦交接处","底瓦与盖瓦同垄叠放，盖瓦压在底瓦之上","底瓦在上、盖瓦在下，形成双层防水","底瓦与盖瓦平行铺设，互不搭接"],"answer":[0],"explanation":"知识点为布瓦屋面基本构造。底瓦垄与盖瓦垄相间排列，盖瓦扣在两垄底瓦交接处，形成排水通道。同垄叠放、底瓦在上、平行不搭接均不符合传统布瓦屋面的实际排列方式。"},{"id":134,"type":"single","stem":"瓦面修缮揭瓦时，对仍可使用的旧瓦件正确的清理方式是","options":["用铲刀轻轻剔除瓦件上的旧灰浆，保持瓦件完整","用铁锤敲击瓦件震落旧灰，提高效率","将旧瓦件浸泡在水中数日，使灰浆自行脱落","用钢丝刷用力刷除旧灰，直至瓦面露出新茬"],"answer":[0],"explanation":"知识点为旧瓦件回收清理。正确做法是轻剔旧灰、保持瓦件完整，便于重复使用。铁锤敲击易震裂瓦件；长时间浸泡会降低瓦件强度，且灰浆未必自行脱落；钢丝刷用力刷会磨损瓦面，影响耐久性。"},{"id":135,"type":"single","stem":"古建屋面苫背施工中，若泥背完成后遇连续降雨，正确的处置是","options":["待雨停后检查泥背，局部被冲坏处补拍修整后再苫灰背","雨停后立即苫灰背，利用泥背湿润有利粘结","在泥背表面撒干灰吸水后直接苫灰背","将泥背全部铲除，重新从基层开始苫背"],"answer":[0],"explanation":"知识点为苫背施工的雨期处置。雨停后应检查泥背，局部冲坏处补拍修整，合格后再苫灰背。立即苫灰背会因泥背过湿或含泥浆导致灰背空鼓；撒干灰吸水不能解决泥背被冲坏的问题；全部铲除重做过于绝对，只有大面积损坏才需重做。"},{"id":136,"type":"single","stem":"某古建屋面修缮时，发现瓦面局部渗漏，揭开后发现底瓦搭接处灰浆不实但瓦件完好，正确的修复顺序是","options":["清理搭接处旧灰，重新坐灰铺底瓦，再按原样盖瓦","直接在原底瓦上补抹灰浆，再盖回盖瓦","更换全部底瓦，重新苫背，再铺盖瓦","在渗漏处表面涂刷防水涂料，再盖回盖瓦"],"answer":[0],"explanation":"知识点为瓦面渗漏修缮程序。正确顺序是清理旧灰、重新坐灰铺底瓦、再盖瓦，恢复搭接防水。直接补抹灰浆不解决搭接不实；全部更换底瓦和重新苫背属于过度维修；表面涂防水涂料会改变传统做法且不能根治搭接渗漏。"},{"id":137,"type":"multi","stem":"古建瓦作施工中，下列哪些做法有助于保证筒瓦垄的防水和稳固","options":["筒瓦坐灰饱满，形成连续熊背","筒瓦搭接处灰浆密实，无空隙","底瓦搭接满足压六露四要求","盖瓦时从檐口向屋脊方向逐块安放","瓦垄完成后立即踩踏检查是否牢固"],"answer":[0,1,2],"explanation":"知识点为筒瓦垄防水稳固要点。筒瓦坐灰饱满形成连续熊背、搭接灰浆密实、底瓦压六露四都是保证防水和稳固的正确做法。盖瓦应从屋脊向檐口方向进行，从檐口向屋脊安放不利于搭接压茬；瓦垄完成后立即踩踏会破坏灰浆粘结，应待灰浆硬化后再检查。"},{"id":138,"type":"single","stem":"传统苫背做法中，在望板上先涂刷的护板灰，其主要作用是防止灰浆中的水分渗入木材导致望板糟朽，同时还能起到什么作用？","options":["增加屋面自重以抗风","使后续灰层与望板粘结更牢","防止望板受潮后膨胀变形","隔绝望板与瓦件的硬性接触"],"answer":[1],"explanation":"护板灰的作用是隔离潮气并作为结合层，使后续灰层与望板粘结牢固。增加自重不是护板灰的功能，抗风靠的是瓦件与灰层的整体压重；防止望板膨胀变形主要靠木材含水率控制；隔绝硬性接触靠的是灰层厚度而非护板灰本身。"},{"id":139,"type":"single","stem":"布瓦屋面苫背时，若在灰浆中掺入适量麻刀，其目的是什么？","options":["提高灰浆的防水性能","增强灰浆的抗拉强度防止开裂","加快灰浆的干燥速度","降低灰浆的吸水率"],"answer":[1],"explanation":"麻刀是纤维材料，掺入灰浆后可增强灰浆的抗拉强度，防止灰层干缩开裂。提高防水性能主要靠灰浆配比和分层做法；加快干燥速度与麻刀无关；降低吸水率也不是掺麻刀的目的。"},{"id":140,"type":"single","stem":"传统筒瓦屋面在底瓦铺设时，相邻两垄底瓦的搭接方向应遵循什么原则？","options":["从檐口向屋脊方向依次搭接","从屋脊向檐口方向依次搭接","左右相邻两垄底瓦对头搭接","根据屋面朝向决定搭接方向"],"ans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A对；垂兽用于垂脊；戗兽用于戗脊；套兽用于翼角仔角梁端。"},{"id":183,"type":"single","stem":"瓦作施工中，底瓦铺完后发现局部凹陷，正确的处理步骤是什么？","options":["直接在凹陷处加铺一层灰浆","揭起该处底瓦，补灰后重新坐浆铺瓦","用木槌从上方敲击底瓦使其与灰浆贴合","在凹陷处塞入瓦片垫平后灌浆"],"answer":[1],"explanation":"知识点：底瓦铺装纠偏。凹陷说明基层或坐浆不实，应揭起该处底瓦补灰重铺，故B对；A直接加灰会改变标高；C敲击易碎瓦且不能解决基层问题；D塞瓦垫平不稳固。"},{"id":184,"type":"single","stem":"某古建屋面修缮时，原屋面为筒瓦捉节夹垄做法，现局部更换底瓦，新底瓦与旧底瓦搭接处应如何处理？","options":["新瓦压旧瓦，搭接处用灰勾抹","旧瓦压新瓦，搭接处留缝","新旧瓦平接，用灰浆填平","新瓦插入旧瓦下方，不另做灰"],"answer":[0],"explanation":"知识点：新旧瓦搭接原则。修缮中应新瓦压旧瓦并勾灰防渗，故A对；B旧压新易渗水；C平接破坏搭接层次；D插入下方无防水保障。"},{"id":185,"type":"single","stem":"瓦作中“号垄”工序的主要目的是什么？","options":["确定瓦垄的排列位置和间距","检查瓦件质量是否合格","计算屋面所需瓦件数量","标记需要更换的旧瓦位置"],"answer":[0],"explanation":"知识点：号垄定义。号垄是在苫背完成后按规矩弹出瓦垄位置线，确定排列间距，故A对；B质量检查另做；C算料在号垄前；D标记旧瓦非号垄内容。"},{"id":186,"type":"single","stem":"传统屋面檐口处底瓦瓦头应伸出多少以利排水？","options":["与檐口齐平","伸出檐口约一瓦翅","缩进檐口约半瓦","伸出檐口约三瓦翅"],"answer":[1],"explanation":"知识点：檐口瓦头出檐。底瓦瓦头应伸出檐口约一瓦翅以利排水，故B对；A齐平易尿檐；C缩进导致雨水倒灌；D伸出过多易被风掀。"},{"id":187,"type":"single","stem":"传统屋面苫背时，护板灰的作用是防止泥背中的水分渗入木基层，其常用配比中灰与麻刀的体积比通常控制在多少","options":["10:1左右","3:1左右","1:1左右","1:10左右"],"answer":[0],"explanation":"知识点是护板灰的配比。护板灰以白灰为主，麻刀掺量很少，通常灰与麻刀体积比约10:1，起防潮隔离作用。3:1是泥背中灰与麻刀的常用比例，掺麻刀过多；1:1麻刀过密，灰浆失去涂刷性；1:10灰太少无法成浆。"},{"id":188,"type":"single","stem":"苫背施工中，泥背通常要分层苫抹，每层厚度一般控制在多少厘米以内，以便干燥均匀不裂纹","options":["1至2厘米","3至5厘米","6至8厘米","9至12厘米"],"answer":[1],"explanation":"知识点是泥背分层厚度。泥背每层以3至5厘米为宜，过薄失水快易裂，过厚内部难干易鼓。1至2厘米太薄，工具压实困难；6至8厘米过厚，内外干燥不同步；9至12厘米更厚，必然开裂空鼓。"},{"id":189,"type":"single","stem":"传统瓦屋面施工中，底瓦的搭接方向应遵循的原则是","options":["自下而上压茬，即上瓦压住下瓦","自上而下压茬，即下瓦顶住上瓦","左右相邻底瓦平接不留搭接","按房间朝向决定压茬方向"],"answer":[0],"explanation":"知识点是底瓦搭接方向。底瓦应自下而上依次铺设，上瓦压住下瓦，使雨水顺搭茬流下而不倒灌。自下而上压茬方向相反，雨水会从搭缝渗入；左右平接无搭接，接缝必然漏水；朝向不影响搭接方向，压茬方向由排水坡向决定。"},{"id":190,"type":"single","stem":"筒瓦屋面中，盖在底瓦两侧缝隙之上、起扣压和排水作用的瓦件是","options":["滴水瓦","勾头瓦","筒瓦","当沟瓦"],"answer":[2],"explanation":"知识点是筒瓦功能。筒瓦扣在两列底瓦之间的缝隙上，形成凸起排水垄。滴水瓦位于檐口底瓦端头，用于滴水导水；勾头瓦位于檐口筒瓦端头，用于封口；当沟瓦用于屋脊与屋面交接处。"},{"id":191,"type":"single","stem":"传统瓦作中，屋面檐口处底瓦端头安装的带有下垂舌片的瓦件称为","options":["勾头","滴水","筒瓦","钉帽"],"answer":[1],"explanation":"知识点是檐口瓦件名称。滴水瓦装在檐口底瓦端，舌片下垂引导雨水远离檐口。勾头装在檐口筒瓦端，用于封口和装饰；筒瓦用于覆盖瓦垄；钉帽用于封盖钉孔。"},{"id":192,"type":"single","stem":"古建筑瓦作修缮中，揭瓦重铺前对原有瓦件进行挑选分类，下列做法正确的是","options":["将缺角但还能搭接的瓦件用于檐口部位","将裂纹瓦件用灰浆粘补后用于屋面显眼处","将完好瓦件与可修补瓦件分类存放备用","将不同规格瓦件混堆以便现场随意取用"],"answer":[2],"explanation":"知识点是瓦件分选。修缮应将完好件与可修补件分类码放，便于按部位取用。缺角瓦件用于檐口会影响外观和防水；裂纹粘补件用于显眼处强度不足；不同规格混堆会造成搭接不严、垄不直。"},{"id":193,"type":"single","stem":"屋面瓦垄出现局部塌陷，但瓦件基本完好，最可能的原因是","options":["瓦件搭接长度不足","苫背层局部空鼓下沉","檐口滴水瓦缺失","筒瓦灰浆颜色不一致"],"answer":[1],"explanation":"知识点是瓦垄塌陷成因。瓦垄整体塌陷多因下部苫背层空鼓或下沉失去支承。搭接不足会漏雨但一般不塌垄；滴水缺失影响檐口排水；灰浆颜色与结构塌陷无关。"},{"id":194,"type":"single","stem":"传统屋面施工中，瓦垄垄距的确定主要依据是","options":["筒瓦的宽度与底瓦的搭接量","屋面的总长度除以瓦件总数","施工人员的手掌宽度","椽子的间距而无需考虑瓦件尺寸"],"answer":[0],"explanation":"知识点是垄距确定。垄距由筒瓦宽度和底瓦两侧搭接量共同决定，保证扣压严密。总长除以瓦数不考虑搭接，不可靠；手掌宽度与瓦件模数无关；椽子间距是参考因素，最终仍须以瓦件尺寸排垄。"},{"id":195,"type":"single","stem":"某古建筑屋面修缮时发现苫背层普遍空鼓，但木基层完好，正确的处置是","options":["在空鼓处钻孔灌注灰浆后直接铺瓦","铲除空鼓苫背层，分层重新苫抹","保留空鼓层，加厚上层泥背压住","只修补檐口附近空鼓部位"],"answer":[1],"explanation":"知识点是苫背空鼓处理。空鼓层已与基层脱离，应铲除后分层重苫，恢复整体结合。钻孔灌浆难以填实大面积空鼓；加厚上层不能消除空鼓且增加荷载；只补檐口会留下隐患。"},{"id":196,"type":"single","stem":"古建筑屋面苫背完成后遇雨，正确的处置是","options":["立即铺瓦，雨水可帮助灰浆养护","待苫背层充分干燥后再铺瓦","在苫背层上撒干灰吸水后立即铺瓦","用塑料布覆盖后继续铺瓦"],"answer":[1],"explanation":"知识点是苫背与铺瓦的间隔。苫背层含水时铺瓦，水汽无法排出，易造成瓦件松动和木基层受潮，应待其干燥后再铺。雨中立即铺瓦会封闭水汽；撒干灰只是表面吸水；覆盖后继续铺瓦同样封闭湿气。"},{"id":197,"type":"single","stem":"传统瓦作中，屋脊砌筑前在脊下屋面两侧先安装的、用于承接脊件并防水的瓦件是","options":["当沟瓦","筒瓦","滴水瓦","勾头瓦"],"answer":[0],"explanation":"知识点是当沟瓦作用。当沟瓦位于屋脊两侧与屋面交接处，承托脊件并形成防水过渡。筒瓦用于屋面瓦垄；滴水瓦、勾头瓦用于檐口，均不承担脊下承托功能。"},{"id":198,"type":"multi","stem":"关于传统瓦屋面修缮中旧瓦件的使用，下列做法正确的有","options":["完好旧瓦件清理灰垢后可按原位置回用","略有裂纹的旧瓦件可用于非承重装饰部位","缺角旧瓦件可用于屋面隐蔽的脊后部位","不同规格旧瓦件应分类码放便于选配","旧瓦件回用前应检查是否有隐伤和冻融酥松"],"answer":[0,3,4],"explanation":"知识点是旧瓦件回用原则。完好件清理后可原位回用；不同规格应分类码放；回用前须检查隐伤和酥松。略有裂纹件虽可勉强搭接，但强度不足不宜上屋面；缺角件即使隐蔽处也会影响搭接和防水，不应使用。"},{"id":199,"type":"single","stem":"传统屋面苫背时，在护板灰之上、瓦泥之下通常要分层铺打的灰浆层是哪种","options":["月白灰","泼灰","素灰","青灰"],"answer":[0],"explanation":"知识点是苫背分层做法：护板灰之上常用月白灰分层铺打，再上瓦泥。泼灰是淋灰过程中的半成品，素灰多用于勾抹，青灰常用于打底或掺灰泥，均不是该层标准做法。"},{"id":200,"type":"single","stem":"传统布瓦屋面檐头瓦件自下而上的正确排序是","options":["勾头、滴水、钉帽","滴水、勾头、钉帽","钉帽、勾头、滴水","勾头、钉帽、滴水"],"answer":[1],"explanation":"知识点是檐头瓦件顺序：最下为滴水，其上为勾头，钉帽钉在勾头之上。勾头在下、钉帽在下的排法都颠倒受力与搭接，钉帽在滴水前也不符合檐口构造。"},{"id":201,"type":"single","stem":"按传统官式做法，布瓦底瓦的搭接应遵循的口诀是","options":["压六露四","压七露三","三搭头","搭七露三"],"answer":[0],"explanation":"知识点是底瓦搭接率：传统布瓦底瓦常用压六露四，即上面一块压住下面一块的六成。压七露三、搭七露三是盖瓦或不同做法的说法，三搭头是筒瓦盖瓦搭接的俗称，不可混用。"},{"id":202,"type":"single","stem":"传统筒瓦屋面中，盖瓦与底瓦的关系是","options":["盖瓦压底瓦边，均坐灰","盖瓦骑在底瓦垄上，只坐瓦泥","盖瓦与底瓦平接，不坐灰","盖瓦压底瓦边，只坐素灰"],"answer":[1],"explanation":"知识点是筒瓦屋面构造：盖瓦骑在底瓦垄上，由瓦泥（灰泥）坐实，两侧压住底瓦边缘。盖瓦压底瓦边并坐灰是布瓦做法，素灰多用于勾抹，平接不坐灰则无法固定防水。"},{"id":203,"type":"single","stem":"在苫背施工中，每层灰浆铺打后需要进行的工序是","options":["趁湿轧实并晾干","半干时赶轧并找平","干透后洒水再轧","边轧边洒水防裂"],"answer":[1],"explanation":"知识点是苫背施工工序：每层铺打后应在半干时赶轧、找平，使灰层密实结合。趁湿轧实易泛浆，干透再轧会破坏强度，边轧边洒水会改变灰浆水灰比。"},{"id":204,"type":"single","stem":"传统屋面瓦件修缮中，发现底瓦有少量裂缝但未碎裂、不渗漏，正确处置是","options":["全部揭瓦重做","局部打点勾抹裂缝","直接在上面加铺一层瓦","用水泥砂浆封堵裂缝"],"answer":[1],"explanation":"知识点是瓦件修缮原则：少量裂缝未渗漏可局部打点勾抹。全部揭瓦属于过度维修，加铺瓦改变荷载与外观，水泥砂浆与古建灰浆不匹配且易伤瓦。"},{"id":205,"type":"single","stem":"布瓦屋面瓦垄出现局部塌陷，但两侧瓦件完好，查勘时应优先怀疑","options":["瓦件本身质量","苫背层局部脱空","椽望整体槽朽","屋脊压重不足"],"answer":[1],"explanation":"知识点是瓦垄塌陷成因：局部塌陷且两侧完好，多为苫背层局部脱空或灰泥流失。瓦件质量不会只塌一处，椽望整体槽朽会大面积下沉，屋脊压重不足影响脊部而非垄中。"},{"id":206,"type":"single","stem":"苫背用灰浆中掺入适量麻刀的主要作用是","options":["增加颜色","提高强度防裂","加快干燥","降低吸水率"],"answer":[1],"explanation":"知识点是麻刀作用：在灰浆中起拉结作用，提高强度、防止开裂。麻刀不改变颜色，不加快干燥，也不显著降低吸水率，这些是其他掺料或做法的功能。"},{"id":207,"type":"single","stem":"传统瓦作中，用于瓦垄之间勾抹以增强防水、外观呈半圆凸起的灰浆做法称为","options":["打点","捉节","夹垄","裹垄"],"answer":[2],"explanation":"知识点是瓦作灰浆工艺：夹垄是瓦垄间勾抹灰浆，使垄间密实防水。打点是局部修补，捉节是筒瓦节缝勾抹，裹垄是筒瓦整体裹灰，功能与部位均不同。"},{"id":208,"type":"multi","stem":"传统布瓦屋面苫背施工中，下列做法正确的有","options":["护板灰铺打后应晾至半干再上下一层","每层灰浆应赶轧密实、表面平整","瓦泥应在苫背层干透后再铺设","苫背层应做出囊线以利排水","各层灰浆可随意互换使用"],"answer":[0,1,3],"explanation":"知识点是苫背施工要点：护板灰半干再上下一层、每层赶轧密实、做出囊线都是正确做法。瓦泥应在苫背层半干时铺设，干透后铺设易空鼓；各层灰浆配比与功能不同，不可随意互换。"},{"id":209,"type":"single","stem":"传统屋面苫背时，在护板灰之上铺泥背，泥背所用灰浆的传统配比通常以什么为控制要点","options":["白灰与黄土按体积比掺和并闷制熟化","白灰与细砂按重量比掺和随拌随用","水泥与黄土按体积比掺和并加水养护","白灰与麦秸按重量比掺和并当日用完"],"answer":[0],"explanation":"知识点是泥背灰浆的传统配制。正确项按体积比掺和白灰与黄土并闷制熟化，是传统苫背泥背的常规做法，熟化后可避免起鼓开裂。错误项白灰掺细砂是砂浆做法，不是泥背；水泥掺黄土会改变传统材料性能且易开裂；白灰掺麦秸是传统墙体或屋面护灰做法，不用于泥背主料配比。"},{"id":210,"type":"single","stem":"传统瓦作中板瓦屋面苫背完成后，铺瓦前对苫背层进行晾晒和检查的主要目的是什么","options":["使苫背层干燥收缩稳定并发现裂缝空鼓","使苫背层表面形成光滑层便于瓦件滑动","使苫背层吸收雨水达到饱和以防后期开裂","使苫背层软化便于瓦件嵌入固定"],"answer":[0],"explanation":"知识点是苫背层质量检查。正确项是让苫背层干燥收缩稳定，并检查裂缝、空鼓，为铺瓦提供合格基层。错误项形成光滑层会影响瓦件与基层结合；吸水饱和会破坏苫背强度并导致冻胀；软化苫背层不是铺瓦前的正常要求。"},{"id":211,"type":"single","stem":"传统瓦作修缮中，发现屋面局部瓦件松动但瓦片完好，正确的处置顺序是什么","options":["先清理松动处灰浆碎屑，再按原做法重新坐灰安瓦","先整体揭瓦重铺，再对旧瓦进行挑选回用","先浇水湿润瓦件，再直接压回原位不做坐灰","先刷浆封闭缝隙，再从上方压瓦固定"],"answer":[0],"explanation":"知识点是局部瓦件松动修缮程序。正确项先清理松动处灰浆碎屑，再按原做法坐灰安瓦，保证结合与防水。错误项整体揭瓦属于扩大修缮；直接压回不做坐灰不牢固；刷浆封闭只是表面处理，不能解决松动。"},{"id":212,"type":"single","stem":"传统屋面瓦作中，底瓦铺设时习惯讲的“压六露四”是指什么","options":["底瓦搭接长度占瓦长的六成，露明部分占四成","底瓦露明部分占六成，搭接长度占四成","底瓦与筒瓦数量比为六比四","底瓦坐灰厚度六成，空腔四成"],"answer":[0],"explanation":"知识点是底瓦搭接的传统术语。正确项压六露四指底瓦搭接长度占瓦长六成、露明四成，搭接充分利于防水。错误项把比例颠倒；数量比说法不是该术语含义；坐灰厚度与空腔比例属于另一类做法表述。"},{"id":213,"type":"single","stem":"传统瓦作中，屋脊砌筑时脊件坐灰不实最容易导致下列哪种后期问题","options":["脊件下沉歪闪并产生裂缝渗水","屋面底瓦大面积滑落","筒瓦表面出现龟裂","苫背层与望板之间脱离"],"answer":[0],"explanation":"知识点是脊件坐灰质量。正确项脊件坐灰不实会下沉、歪闪并裂缝渗水。错误项底瓦大面积滑落多与底瓦坐灰或钉系有关；筒瓦表面龟裂多为瓦件质量或冻融；苫背与望板脱离多与苫背基层处理有关，均不是脊件坐灰不实的直接后果。"},{"id":214,"type":"single","stem":"传统瓦作中，在望板上苫背前对望板缝进行处理，通常采用什么做法","options":["用灰浆或木条将望板缝填塞严实","在望板缝处预留缝隙以利于通风","在望板缝上直接铺油毡不做填塞","用砂子填缝并浇水压实"],"answer":[0],"explanation":"知识点是苫背前基层处理。正确项用灰浆或木条填塞望板缝，防止苫背材料漏下并减少渗漏通道。错误项预留缝隙不利防漏；直接铺油毡不填缝仍可能漏浆；砂子填缝不具粘结性，不能形成有效封闭。"},{"id":215,"type":"single","stem":"传统瓦作修缮中，揭取旧瓦时对完好旧瓦的正确处理方式是什么","options":["按规格分类码放，清理灰浆后择优选留回用","不分规格混堆，待铺瓦时随取随用","用水长时间浸泡去除灰浆后立即上房","将旧瓦背面灰浆保留以增强与新灰粘结"],"answer":[0],"explanation":"知识点是旧瓦揭取与回用。正确项按规格分类码放并清理灰浆，择优选留回用，符合文物修缮原状保护要求。错误项混堆易造成规格错用；长时间浸泡可能损伤瓦件；保留旧灰浆会妨碍新坐灰结合。"},{"id":216,"type":"single","stem":"传统屋面瓦作施工中，檐口瓦件安装时下列哪项做法符合传统要求","options":["檐口底瓦出檐一致并用勾头滴水坐灰固定","檐口底瓦可高低错落以显自然","檐口滴水可省略坐灰直接搁置","檐口筒瓦可用铁钉穿透固定不坐灰"],"answer":[0],"explanation":"知识点是檐口瓦件安装。正确项檐口底瓦出檐一致、勾头滴水坐灰固定，保证檐口平直牢固防水。错误项高低错落不符合传统檐口顺直要求；滴水不坐灰不稳固；筒瓦钉穿不坐灰易渗漏且损伤瓦件。"},{"id":217,"type":"single","stem":"传统瓦作中，屋面苫背层出现局部空鼓，正确的修缮处置是什么","options":["铲除空鼓部位至密实处，按原层次补做苫背","在空鼓表面钻孔注浆后直接铺瓦","在空鼓处加铺一层泥背压住","用砂浆抹平空鼓表面后铺瓦"],"answer":[0],"explanation":"知识点是苫背空鼓修缮。正确项铲除空鼓至密实处并按原层次补做，保证基层整体性。错误项钻孔注浆不适用于传统苫背层；加铺泥背压住不能消除空鼓；砂浆抹面只处理表面，内部仍空鼓。"},{"id":218,"type":"multi","stem":"传统瓦作修缮中，以下关于屋面瓦件拆卸与堆放的做法，正确的有哪些","options":["拆卸前对瓦垄位置和瓦件规格进行编号记录","完好筒瓦与板瓦分别码放并采取防倾倒措施","拆卸时从檐口向屋脊方向依次进行","堆放场地应平整并垫板防止瓦件磕碰","拆下的瓦件可临时堆在屋面待铺瓦时再分类"],"answer":[0,1,3],"explanation":"知识点是瓦件拆卸与堆放。正确项包括拆前编号记录、按类分别码放防倾倒、场地平整垫板防磕碰，均利于后续原状恢复和瓦件保护。错误项从檐口向屋脊方向拆卸不符合传统自上而下拆卸顺序；临时堆在屋面不分类存在滑落和混淆风险。"},{"id":219,"type":"single","stem":"传统屋面苫背施工中，在护板灰之上、青灰背之下通常应铺设的构造层是","options":["月白灰","泥背","锡背","油毡"],"answer":[1],"explanation":"知识点为苫背分层构造。正确项泥背是护板灰与青灰背之间的传统构造层，起找平与粘结作用。月白灰多用于墙面或瓦面勾抹，不是此层；锡背属高等级防渗层，并非所有屋面必设；油毡为现代材料，传统苫背工序中不采用。"},{"id":220,"type":"single","stem":"筒瓦屋面瓦垄底部的底瓦（板瓦）搭接方向应遵循的传统做法是","options":["由檐口向脊方向逐块压叠","由脊向檐口方向逐块压叠","相邻两垄底瓦压向相反","底瓦一律大头朝下压小头"],"answer":[0],"explanation":"知识点为底瓦搭接方向。正确项为由檐口向脊方向逐块压叠，使雨水顺搭茬下泄不渗入。由脊向檐口压叠会形成倒水搭茬导致渗漏；相邻垄压向相反不符合底瓦顺水搭接规律；底瓦大头朝下压小头是混淆了瓦件大小头与搭接方向的错误做法。"},{"id":221,"type":"single","stem":"屋面苫背时对泥背的分层做法，较符合传统工艺要求的是","options":["一次铺足设计厚度再拍实","分两层铺抹且每层拍实晾干","分两层铺抹但第二层趁湿一次压光","一次铺足后表面刷素灰压光"],"answer":[1],"explanation":"知识点为泥背分层施工。正确项为分两层铺抹、每层拍实晾干，可防止开裂与空鼓。一次铺足厚度易开裂；第二层趁湿一次压光会封闭内部水分导致起鼓；一次铺足后刷素灰压光不能解决泥背自身收缩开裂问题。"},{"id":222,"type":"single","stem":"修缮古建筑屋面揭瓦时，对仍可继续使用的旧筒瓦，正确的清理与归垛方式是","options":["用铁铲敲掉灰皮后集中堆放","瓦面朝下码放并遮雨保存","带灰直接码放待用时再清灰","用水浸泡至灰皮软化后刷洗"],"answer":[1],"explanation":"知识点为旧瓦件保护性拆卸。正确项为瓦面朝下码放并遮雨，可保护瓦口与釉面。铁铲敲灰易崩边伤瓦；带灰码放灰渣会磨损瓦面；长时间浸泡会降低瓦件强度并损伤灰口。"},{"id":223,"type":"single","stem":"传统筒瓦屋面中，檐口第一块筒瓦下所用的瓦件通常称为","options":["勾头","滴水","钉帽","瓦当"],"answer":[0],"explanation":"知识点为檐口瓦件名称。正确项勾头即檐口筒瓦端的封口瓦，常带钉帽孔。滴水是檐口底瓦端的排水瓦件；钉帽是固定勾头用的铁件；瓦当是勾头带纹样一面的俗称，与勾头并非同一瓦件名。"},{"id":224,"type":"single","stem":"屋面苫背完成后，判断青灰背是否达到可进行瓦瓦工序的干湿度，较为可靠的经验方法是","options":["用手掌按压表面不留指印即可","用脚踩踏背面无明显下陷即可","用瓦刀轻划表面呈白色划痕即可","表面颜色由深转浅且不粘手即可"],"answer":[3],"explanation":"知识点为青灰背干燥程度判断。正确项表面颜色由深转浅且不粘手，说明水分已适度蒸发、强度初步形成。手压不留指印、脚踩不下陷、划出白痕均可能表面已干而内部仍湿，贸然瓦瓦易造成背层损伤。"},{"id":225,"type":"single","stem":"某施工队修缮一座清代硬山建筑，揭瓦后发现局部木椽糟朽，正确的处理顺序是","options":["先苫背保护椽望再择机换椽","先更换糟朽椽望再重新苫背瓦瓦","先瓦瓦后从室内顶棚更换椽望","先做防水层后更换糟朽椽望"],"answer":[1],"explanation":"知识点为修缮工序逻辑。正确项为先更换糟朽椽望再重新苫背瓦瓦，保证基层牢固。先苫背后换椽会破坏已做背层；先瓦瓦后换椽需二次揭瓦；先做防水层再换椽同样破坏已完工序。"},{"id":226,"type":"single","stem":"布瓦屋面瓦瓦时，控制瓦垄顺直的传统做法是在屋面上先拉线，这条线通常称为","options":["檐线","脊线","瓦垄线","垂线"],"answer":[2],"explanation":"知识点为瓦垄定位放线。正确项瓦垄线用于控制各垄底瓦与筒瓦的走向顺直及垄距均匀。檐线控制檐口平直；脊线控制屋脊位置；垂线是局部垂直控制线，不直接控制瓦垄分布。"},{"id":227,"type":"single","stem":"传统屋面在瓦瓦完成后，对筒瓦节缝进行勾抹的工序称为","options":["夹垄","捉节","裹垄","打点"],"answer":[1],"explanation":"知识点为瓦面勾抹工序。正确项捉节指对筒瓦相邻两节接缝处用灰勾抹严实。夹垄是筒瓦两侧与底瓦之间的填灰；裹垄是筒瓦表面整体包裹灰层的做法；打点是局部修补。"},{"id":228,"type":"single","stem":"某古建屋面局部修缮时发现原屋面为干槎瓦做法，正确的认识是","options":["干槎瓦不用灰泥，瓦垄间相互挤靠","干槎瓦底瓦不搭接，仅靠灰浆粘结","干槎瓦只用筒瓦不用底瓦","干槎瓦是现代水泥瓦的铺法"],"answer":[0],"explanation":"知识点为干槎瓦屋面特征。正确项干槎瓦为不用灰泥、瓦件相互挤靠叠压的传统做法。干槎瓦底瓦仍需搭接；干槎瓦同样使用底瓦；干槎瓦属传统布瓦做法，与现代水泥瓦无关。"},{"id":229,"type":"single","stem":"传统屋面苫背施工中，护板灰的主要作用是","options":["隔绝木基层与灰背防止木材受潮","增强瓦面与椽望的整体粘结","找平椽望表面便于后续苫背","防止瓦件下滑并固定瓦口"],"answer":[0],"explanation":"护板灰是苫背的第一道灰，涂刷在望板（木基层）上，作用是把木基层与上层灰背隔开，防止灰背水分渗入木材导致糟朽。B项是泥背或瓦面与灰背之间的粘结要求，不是护板灰的功能；C项找平主要靠泥背分层拍实找平，护板灰很薄不具备找平作用；D项固定瓦口靠的是瓦口木和钉瓦口，与护板灰无关。"},{"id":230,"type":"single","stem":"古建筑布瓦屋面瓦瓦时，底瓦的搭接方向应","options":["从檐口向屋脊方向自下而上搭","从屋脊向檐口方向自上而下搭","由左向右横向依次搭","由右向左横向依次搭"],"answer":[0],"explanation":"底瓦应檐头在下、脊部在上，自下而上依次搭接，使雨水顺搭茬流下不渗入。B项自上而下搭会使瓦茬口朝上形成倒水，雨水容易倒灌；C、D项横向搭接是筒瓦或脊瓦的排列方向，不是底瓦流水的搭接方向。"},{"id":231,"type":"single","stem":"筒瓦屋面盖瓦时，筒瓦之间的接缝处应","options":["用灰泥填实抹平形成瓦垄","保持空缝以利排水","用碎瓦片塞紧不留空隙","先铺麻刀灰再扣盖脊瓦"],"answer":[0],"explanation":"筒瓦之间接缝用灰泥（如麻刀灰）填实抹平，形成完整瓦垄，保证防水。B项留空缝会使雨水沿缝下渗到灰背；C项塞碎瓦片不能形成连续防水层且不稳固；D项扣盖脊瓦是屋脊部位的工序，不是筒瓦垄间接缝的处理。"},{"id":232,"type":"single","stem":"苫背施工中，泥背每层拍实的厚度一般控制在","options":["2厘米至3厘米","5厘米至6厘米","10厘米至12厘米","15厘米至20厘米"],"answer":[0],"explanation":"传统苫背泥背分层施工，每层虚铺后拍实，实厚一般控制在2～3厘米，便于干透和防止开裂。B项5～6厘米过厚不易干透易开裂；C、D项更厚，超出单层苫背合理厚度，属于典型错记。"},{"id":233,"type":"single","stem":"古建筑瓦作中，筒瓦的“舌”指的是","options":["筒瓦前端带弧度的收口部分","筒瓦背面用于挂灰的凸棱","筒瓦两侧的切割边缘","筒瓦顶部用于搭接的平面"],"answer":[0],"explanation":"筒瓦前端的弧形收口俗称“舌”，盖瓦时舌部朝下扣住底瓦垄，起导水和搭接作用。B项凸棱是瓦背特征但不是“舌”；C项侧边是切面，不是舌；D项顶部平面是瓦身，与舌不是同一部位。"},{"id":234,"type":"single","stem":"传统屋面瓦瓦前进行“号垄”的主要目的是","options":["确定各垄瓦的中线和瓦件排布位置","检查瓦件是否有裂纹缺角","标识底瓦与筒瓦的烧制批次","记录屋面坡度便于苫背找平"],"answer":[0],"explanation":"号垄是在屋面上弹出各垄瓦的中线，确定底瓦、筒瓦的排布位置和垄距，保证瓦垄顺直均匀。B项是选瓦时的质量检查；C项是材料管理内容；D项坡度控制靠苫背和瓦口标高，号垄主要解决横向排布定位。"},{"id":235,"type":"single","stem":"修缮古建筑屋面时，揭瓦后发现局部望板糟朽但未超过椽径三分之一，正确的处置是","options":["将该处糟朽部分剔除并补配同材质新板","整块望板拆除后全部换成新板","用灰泥将糟朽处填平后直接苫背","在糟朽处表面刷桐油后继续使用"],"answer":[0],"explanation":"望板局部糟朽未超过椽径三分之一时，可将糟朽部分剔除，用同材质、同厚度的新板补配嵌实，保持原构件和整体性。B项整块更换会破坏原有构件且不必要；C项灰泥填平无法恢复木材承力；D项刷桐油只能表面防护，不能解决已经糟朽的问题。"},{"id":236,"type":"single","stem":"在坡度较陡的古建筑屋面上瓦瓦时，防止瓦件下滑的常见做法是","options":["在瓦底灰中掺入适量麻刀并压实","在底瓦下垫小石子增加摩擦","将底瓦搭接长度缩短以减重","在筒瓦表面刷浆增加表面粗糙度"],"answer":[0],"explanation":"陡坡屋面瓦底灰中掺麻刀可增强灰浆整体性和与瓦件的粘结力，配合压实防止瓦件下滑。B项垫小石子会形成点接触，反而使瓦件不稳；C项缩短搭接会削弱防水；D项表面刷浆不能增加瓦件与灰浆之间的粘结。"},{"id":237,"type":"single","stem":"布瓦屋面修缮中，若发现底瓦出现“喝风”现象，通常是指","options":["底瓦搭接处灰浆不实形成空隙","底瓦表面被风蚀出现麻面","底瓦颜色发白俗称返碱","底瓦被风吹落缺失"],"answer":[0],"explanation":"“喝风”是行业俗语，指底瓦搭接处灰浆未填实，存在空隙，风雨易侵入。B项风蚀麻面是瓦体表面风化；C项返碱是盐析现象；D项瓦件缺失是揭瓦或掉瓦，与喝风的成因不同。"},{"id":238,"type":"single","stem":"古建筑屋脊砌筑时，脊件之间使用的“脊灰”通常比苫背用灰","options":["稠度更大且掺入更多纤维材料","稠度更稀以便灌满缝隙","不含纤维以避免开裂","掺入更多细砂以减轻重量"],"answer":[0],"explanation":"脊件砌筑需要灰浆有较高稠度和粘结力，通常掺入更多麻刀等纤维材料，防止脊件滑动和灰缝开裂。B项过稀无法承托脊件；C项不加纤维易裂；D项多加细砂会降低粘结强度。"},{"id":239,"type":"single","stem":"某古建修缮工程中，揭瓦后原苫背泥背基本完好，仅局部因漏雨酥松，正确的处置是","options":["铲除酥松部分并补做同层次泥背","全部铲除泥背重新苫背","在酥松处直接加铺一层新泥背","用水泥砂浆修补酥松部位"],"answer":[0],"explanation":"原泥背基本完好时，应遵循最小干预原则，仅铲除酥松失效部分，按原层次、原材料补做泥背，保持整体一致。B项全部铲除属于过度干预，破坏原有灰背；C项直接加铺会造成层次混乱、厚度不均；D项水泥砂浆与原泥背材料性能差异大，不符合传统做法。"},{"id":240,"type":"single","stem":"传统屋面苫背时，护板灰的打底做法在古建瓦作中主要起着什么作用","options":["粘结瓦件防止下滑","隔潮并找平基层","提高屋面整体吸水率","代替泥背作为承重层"],"answer":[1],"explanation":"护板灰是苫背的第一道灰层，作用是隔潮并初步找平基层，为后续泥背提供结合面。粘结瓦件是瓦泥和灰浆的作用；提高吸水率与苫背目的相反，苫背追求密实防渗；护板灰是薄灰层，不能代替泥背承重。"},{"id":241,"type":"single","stem":"古建屋面苫背分层施工时，泥背与灰背之间的正确顺序是","options":["灰背在下泥背在上","泥背在下灰背在上","两者混合后一次拍实","先铺灰背再铺泥背再铺灰背"],"answer":[1],"explanation":"传统苫背自下而上为护板灰、泥背、灰背，泥背在下、灰背在上，灰背起防水面层作用。灰背在下泥背在上颠倒层次，泥背受压后易被灰背封住水分；两者混合会破坏分层密实效果；三层夹心做法不符合传统苫背分层逻辑。"},{"id":242,"type":"single","stem":"布瓦屋面中底瓦的搭接朝向应遵循的传统做法是","options":["瓦垄顺水方向压七露三","瓦垄顺水方向压三露七","底瓦小头朝上大头朝下","底瓦大头朝上小头朝下"],"answer":[0],"explanation":"底瓦铺设讲究压七露三，即上面一片压住下面一片约七成，露三成，保证顺水搭接防渗。压三露七搭接过少易渗漏；底瓦应小头朝上、大头朝下形成顺水，大头朝上小头朝下会形成逆水。"},{"id":243,"type":"single","stem":"筒瓦屋面中筒瓦与底瓦的配合关系，传统做法要求筒瓦扣盖在底瓦垄上时","options":["筒瓦熊头朝上顺水搭接","筒瓦熊头朝下逆水搭接","筒瓦平接不留搭接量","筒瓦搭接朝向与底瓦相反"],"answer":[0],"explanation":"筒瓦扣盖在相邻两垄底瓦之上，熊头朝上顺水搭接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防水，传统做法中筒瓦接缝处应","options":["坐灰饱满并勾抹严实","仅两端点灰固定","只勾外缝不坐内灰","干摆后灌浆填缝"],"answer":[0],"explanation":"知识点：筒瓦裹垄与坐灰工艺。正确项坐灰饱满并勾抹严实可形成连续防水层。仅两端点灰固定会使中段空鼓渗水；只勾外缝不坐内灰内部空隙仍会进水；干摆后灌浆填缝难以保证浆液填满且易收缩开裂。"},{"id":265,"type":"single","stem":"修缮古建筑屋面时发现椽望局部糟朽但未影响承重，传统瓦作中更换檐椽后恢复屋面，苫背层应","options":["只补做更换椽位处的苫背","整坡铲除重新苫背","保留旧苫背直接盖瓦","用灰浆罩面后即盖瓦"],"answer":[0],"explanation":"知识点：局部修缮中苫背层处理。正确项只补做更换椽位处的苫背，可与原苫背衔接且减少扰动。整坡铲除重新苫背会过度干预原构；保留旧苫背直接盖瓦新旧层不衔接；用灰浆罩面后即盖瓦未恢复泥背层，均不符合传统做法。"},{"id":266,"type":"single","stem":"古建筑瓦作中，用于屋脊砌筑的脊瓦与普通屋面瓦件相比，其吸水率要求通常是","options":["脊瓦吸水率可高于面瓦","脊瓦吸水率应低于面瓦","脊瓦与面瓦吸水率相同","脊瓦不做吸水率要求"],"answer":[1],"explanation":"知识点：脊瓦与面瓦性能差异。正确项脊瓦位于屋脊受力与冻融最不利部位，吸水率应低于面瓦以减少冻胀破坏。脊瓦吸水率可高于面瓦会加剧冻融剥落；与面瓦相同未体现屋脊部位更高要求；脊瓦不做吸水率要求不符合瓦件质量控制原则。"},{"id":267,"type":"single","stem":"传统瓦作中“压六露四”指的是底瓦搭接时","options":["搭接六成、露四成","搭接四成、露六成","压边六分、露边四分","压六层、露四层"],"answer":[0],"explanation":"知识点：底瓦搭接比例术语。正确项压六露四即上下瓦搭接长度为瓦长的六成、露明四成。搭接四成露六成比例颠倒，防水不足；压边六分露边四分是混淆了长度比例与边距；压六层露四层说法无此构造。"},{"id":268,"type":"single","stem":"在古建筑屋面修缮中，拆除旧瓦件时对可回用瓦件的清理，正确做法是","options":["用铁铲猛敲去除灰浆","用木槌轻敲并竹片刮灰","用酸液浸泡洗去灰浆","用水冲后钢丝刷打磨"],"answer":[1],"explanation":"知识点：旧瓦件回收清理。正确项木槌轻敲并竹片刮灰可减少瓦件损伤。铁铲猛敲易崩边；酸液浸泡会腐蚀瓦面；水冲后钢丝刷打磨会磨损瓦面釉层或布纹，均造成不可逆损伤。"},{"id":269,"type":"single","stem":"传统瓦作中，屋面瓦垄的“睁眼”与“闭眼”主要用于判断","options":["瓦件烧制火候","底瓦搭接是否严密","筒瓦坐灰厚薄","屋脊砌筑高度"],"answer":[1],"explanation":"知识点：瓦垄睁眼闭眼术语。正确项睁眼指底瓦搭接处露缝、闭眼指搭接严密，用于检查底瓦防水。瓦件烧制火候看色泽听声音；筒瓦坐灰厚薄看灰口；屋脊砌筑高度用尺量，均与睁眼闭眼无关。"},{"id":270,"type":"single","stem":"某古建修缮工地，瓦工在苫背完成后遇连续降雨，雨后准备盖瓦前发现泥背表面有细微裂纹，正确处置是","options":["直接盖瓦，裂纹被瓦压住","洒水润湿并用木拍板拍实","铲除裂纹层重新苫背","用水泥砂浆填补裂纹"],"answer":[1],"explanation":"知识点：泥背干缩裂纹处理。正确项洒水润湿拍实可闭合细微裂纹恢复密实。直接盖瓦裂纹会成为渗水通道；铲除重做对细微裂纹属过度处理；水泥砂浆填补与泥背材质收缩不一致，易再次开裂。"},{"id":271,"type":"single","stem":"布瓦屋面盖瓦垄时，若发现相邻两垄底瓦的搭接处出现“喝风”现象，说明","options":["底瓦搭接过长","底瓦搭接不足或翘曲","筒瓦坐灰过厚","瓦垄间距过大"],"answer":[1],"explanation":"知识点：喝风现象判断。正确项喝风指搭接处有缝隙可进风，因搭接不足或瓦件翘曲。搭接过长不会喝风；筒瓦坐灰过厚影响盖瓦垄；瓦垄间距过大影响排列，均不直接造成底瓦搭接喝风。"},{"id":272,"type":"single","stem":"古建筑瓦作修缮中，屋面翼角部位的瓦件排列与正身不同，其主要原因是","options":["翼角瓦件规格更大","翼角瓦垄呈放射状排列","翼角不使用底瓦","翼角瓦件不需搭接"],"answer":[1],"explanation":"知识点：翼角瓦垄排列特点。正确项翼角瓦垄随戗脊呈放射状，瓦件需按角度调整。翼角瓦件规格并不更大；翼角同样使用底瓦；瓦件仍需搭接，只是方向角度变化。"},{"id":273,"type":"multi","stem":"传统瓦作苫背施工中，下列哪些做法有助于保证苫背层与基层结合牢固且不易空鼓","options":["基层清扫干净并适量洒水润湿","泥背分层铺拍，每层拍实后再铺上层","泥背一次铺足设计厚度后统一拍实","在光滑混凝土基层上直接铺泥背","泥背中掺入适量麻刀或麦秸"],"answer":[0,1,4],"explanation":"知识点：苫背结合与防空鼓措施。正确项：基层清扫洒水可增强粘结；分层铺拍每层拍实可减少空鼓；掺麻刀或麦秸可抗裂。错误项：一次铺足厚度统一拍实内部不密实易空鼓；光滑混凝土基层直接铺泥背粘结差，需先做界面处理。"},{"id":274,"type":"single","stem":"传统屋面苫背时，护板灰上依次要苫的灰泥层顺序是","options":["先苫大麻刀灰，再苫月白灰，最后苫青灰","先苫月白灰，再苫大麻刀灰，最后苫青灰","先苫青灰，再苫大麻刀灰，最后苫月白灰","先苫大麻刀灰，再苫青灰，最后苫月白灰"],"answer":[0],"explanation":"知识点是苫背分层顺序：护板灰之上通常先苫大麻刀灰打底，再苫月白灰找平，最后苫青灰压光。B把月白灰放底层，失去打底作用；C把青灰放底层，青灰是表面压光用灰；D把青灰夹在中间、月白灰放面层，面层颜色和强度都不符。"},{"id":275,"type":"single","stem":"筒瓦屋面瓦瓦时，底瓦的搭接方向应遵循的规则是","options":["压六露四，从檐口向正脊方向逐块往上搭","压四露六，从正脊向檐口方向逐块往下搭","压六露四，从正脊向檐口方向逐块往下搭","压四露六，从檐口向正脊方向逐块往上搭"],"answer":[0],"explanation":"知识点是底瓦搭接：应压六露四，并自檐口向正脊方向逐块往上搭，使水流顺搭茬下泄。B搭接比例和方向均反；C比例对但方向反，会兜水；D方向对但比例反，搭接过少易渗漏。"},{"id":276,"type":"single","stem":"古建筒瓦屋面捉节夹垄时，夹垄灰的常用做法是","options":["用麻刀灰分次填实垄缝，最后赶轧压光","用素灰一次填满垄缝，表面抹平即可","用灰泥填缝后不再赶轧，保留粗糙面","用石灰浆灌缝，表面撒瓦片碎屑压光"],"answer":[0],"explanation":"知识点是捉节夹垄：垄缝需用麻刀灰分次填实并赶轧压光，才能密实防渗。B素灰一次填满易开裂收缩；C不赶轧则灰缝不密实；D灌浆加碎屑不是夹垄灰的正常做法，表面也不密实。"},{"id":277,"type":"single","stem":"布瓦屋面查补时，发现底瓦有少量裂缝但未破碎，传统修缮做法是","options":["揭起该底瓦，更换同规格新瓦后重新瓦好","在裂缝处直接涂刷青灰浆封闭，不揭瓦","在裂缝上盖一块新瓦，用灰粘牢搭接","将裂缝瓦翻面使用，把完好面朝上重新瓦好"],"answer":[0],"explanation":"知识点是瓦件残损修缮：底瓦有裂缝应揭起更换同规格新瓦，重新瓦好并恢复搭接。B表面涂灰不能恢复瓦体强度，水仍可渗入；C加盖一块新瓦会改变搭接和外观；D翻面使用破坏瓦的搭接面和防水构造。"},{"id":278,"type":"single","stem":"古建筑屋面瓦瓦前对瓦件进行“沾浆”处理，其主要作用是","options":["使瓦件表面挂灰均匀，增强与灰浆的粘结","使瓦件吸水饱和，防止瓦件冻融破坏","使瓦件表面染色，与旧瓦颜色一致","使瓦件表面光滑，便于屋面排水"],"answer":[0],"explanation":"知识点是沾浆作用：瓦件沾浆后表面挂灰均匀，可增强与灰浆的粘结。B沾浆不是饱和吸水防冻措施；C沾浆不用于染色；D沾浆不使瓦面变光滑，与排水无直接关系。"},{"id":279,"type":"single","stem":"传统屋面苫背中，护板灰的主要作用是","options":["粘护望板并起第一道防水找平作用","替代泥背层，直接承受瓦件荷载","作为面层压光，决定屋面最终颜色","填充望板缝隙，只起保温作用"],"answer":[0],"explanation":"知识点是护板灰功能：护板灰用于粘护望板并作第一道防水找平。B护板灰不能替代泥背层承重；C面层压光是青灰的作用；D护板灰不只是填缝保温，还有防水找平功能。"},{"id":280,"type":"single","stem":"筒瓦屋面瓦瓦时，筒瓦与底瓦之间的“睁眼”过大，最容易导致的问题是","options":["筒瓦坐灰不实，屋面易渗漏且瓦件易松动","底瓦搭接不足，屋面排水不畅","垄缝灰无法填入，捉节夹垄困难","屋面外观颜色不均，影响观感"],"answer":[0],"explanation":"知识点是睁眼控制：睁眼过大会使筒瓦坐灰不实，导致渗漏和瓦件松动。B睁眼大小不直接决定底瓦搭接；C垄缝灰仍可填，只是质量受影响；D睁眼大小与颜色无关。"},{"id":281,"type":"single","stem":"传统布瓦屋面瓦瓦时，檐口第一块瓦应控制的关键是","options":["瓦头出檐一致，檐口平直，瓦底坐灰密实","瓦头尽量内收，防止雨水溅出檐外","瓦头尽量外挑，使排水更远","檐口瓦可略高于内部瓦，形成反坡"],"answer":[0],"explanation":"知识点是檐口控制：檐口瓦头出檐应一致，檐口平直，瓦底坐灰密实。B内收过多会造成檐口渗水；C外挑过多易被风掀且外观不齐；D檐口抬高形成反坡会兜水，是错误做法。"},{"id":282,"type":"single","stem":"古建屋面瓦瓦时，从檐口向正脊方向瓦瓦，底瓦搭接应做到","options":["檐口瓦压住下一块瓦的瓦头，逐块往上搭","下一块瓦压住檐口瓦的瓦尾，逐块往上搭","相邻底瓦互不搭接，仅靠灰缝连接","底瓦与筒瓦同向搭接，均从正脊往下搭"],"answer":[0],"explanation":"知识点是底瓦搭接方向：应檐口瓦压住下一块瓦的瓦头，逐块往上搭，使水顺搭茬下流。B方向反，会兜水渗漏；C不搭接无法防水；D筒瓦与底瓦搭接方式不同，不能同向处理。"},{"id":283,"type":"single","stem":"某古建修缮工程中，屋面苫背完成后遇雨，背层局部被雨水冲淋出现坑洼，正确的处置是","options":["待背层干燥后，将坑洼处清除至密实层，重新补苫并赶轧","直接在坑洼处补抹一层青灰，表面压光即可","在坑洼处填塞干灰，待其自然吸潮硬化","将整个屋面背层全部铲除，重新苫背"],"answer":[0],"explanation":"知识点是苫背雨淋后的处理：应清除坑洼至密实层，重新补苫赶轧。B直接补青灰不能与底层结合；C干灰填塞无法密实；D局部坑洼不必全部铲除，全部返工过度。"},{"id":284,"type":"single","stem":"布瓦屋面底瓦铺设时，相邻两垄底瓦的搭接方向应如何设置？","options":["自上而下顺搭","自下而上逆搭","左右横向对搭","上下对头搭"],"answer":[0],"explanation":"知识点是底瓦搭接方向。正确项自上而下顺搭可让雨水顺瓦垄排出，避免倒呛水。自下而上逆搭会使雨水钻入搭接缝；左右横向对搭不符合瓦垄排水的坡向逻辑；上下对头搭会形成积水节点。"},{"id":285,"type":"single","stem":"筒瓦屋面中，盖瓦垄与底瓦垄之间的空隙常用哪类灰浆填充固定？","options":["夹垄灰","护板灰","月白灰","泼灰"],"answer":[0],"explanation":"知识点是筒瓦卧浆与夹垄。正确项夹垄灰用于填塞盖瓦两侧空隙并稳固瓦件。护板灰用于苫背与望板之间；月白灰多用于墙面或瓦面勾抹；泼灰是灰浆制备工序名称，不是填塞材料。"},{"id":286,"type":"single","stem":"古建筑瓦作修缮中，发现檐头瓦件局部碎裂但瓦垄整体稳固时，优先采用的处置方式是？","options":["整垄揭瓦重做","剔凿挖补更换瓦件","加抹灰浆封护裂缝","增设金属抱箍加固"],"answer":[1],"explanation":"知识点是瓦件修缮的局部挖补工艺。正确项剔凿挖补可保留稳固瓦垄，仅更换损坏瓦件。整垄揭瓦重做会造成不必要扰动；加抹灰浆封护会掩盖渗漏且不符形制；金属抱箍并非传统瓦作修缮做法。"},{"id":287,"type":"single","stem":"传统瓦作中，用于固定檐头筒瓦防止下滑的瓦件通常称作什么？","options":["钉帽","瓦钉","滴水","勾头"],"answer":[0],"explanation":"知识点是檐头瓦件固定构件。正确项钉帽套在瓦钉顶端，既固定筒瓦又起装饰防水作用。瓦钉是钉入木基层的钉体，需配钉帽使用；滴水是檐头底瓦端部排水瓦件；勾头是檐头筒瓦端部带花纹的瓦件。"},{"id":288,"type":"single","stem":"在苫背施工中，每层灰背拍打夯实的目的是什么？","options":["增加灰浆流动性","提高密实度与防水性","加快灰浆凝固速度","便于后续瓦件滑动调整"],"answer":[1],"explanation":"知识点是苫背拍打夯实作用。正确项通过拍打提高灰背密实度，减少孔隙以增强防水与承瓦能力。拍打不会增加流动性；凝固速度由材料配比与环境决定；瓦件安装需稳固而非滑动。"},{"id":289,"type":"single","stem":"布瓦屋面盖瓦垄的瓦件应如何搭接？","options":["上瓦压下瓦","下瓦压上瓦","左右瓦对压","上下瓦对顶"],"answer":[0],"explanation":"知识点是盖瓦搭接方向。正确项上瓦压下瓦使雨水顺盖瓦垄排走，不致倒灌。下瓦压上瓦会形成逆水缝；左右瓦对压不符合垄向排水；上下瓦对顶会形成渗漏节点。"},{"id":290,"type":"single","stem":"修缮中发现瓦垄局部沉陷，但相邻瓦垄完好，最可能的原因是？","options":["整体木基层腐朽","该垄下苫背层局部酥松","瓦件规格不一致","屋面坡度整体偏小"],"answer":[1],"explanation":"知识点是瓦垄局部沉陷的病因判断。正确项局部沉陷多因该垄下苫背层酥松或局部脱空。整体木基层腐朽会引起大面积沉陷；瓦件规格不一致主要影响外观与搭接；坡度整体偏小会导致普遍排水不畅而非单垄沉陷。"},{"id":291,"type":"single","stem":"传统瓦作中，用于檐头底瓦端部的排水瓦件是？","options":["勾头","滴水","钉帽","瓦钉"],"answer":[1],"explanation":"知识点是檐头瓦件名称与功能。正确项滴水位于檐头底瓦端部，引导雨水滴落远离檐口。勾头是檐头筒瓦端部瓦件；钉帽用于固定瓦钉；瓦钉是钉入基层的固定件。"},{"id":292,"type":"single","stem":"苫背施工时，若青灰背表面出现大量龟裂，最恰当的处置是？","options":["直接铺瓦掩盖","铲除龟裂层重新苫抹","用素灰勾抹裂缝","洒水润湿后压光"],"answer":[1],"explanation":"知识点是苫背质量缺陷处置。正确项龟裂说明灰背粘结或养护不当，应铲除重做以保证防水。直接铺瓦会遗留渗漏隐患；素灰勾抹只能表面封闭；洒水压光不能恢复已破坏的层间粘结。"},{"id":293,"type":"single","stem":"某古建筑屋面修缮时，发现瓦件完好但瓦垄间勾抹灰大量脱落，正确的下一步工序是？","options":["整垄揭瓦重做","清理灰缝后重新勾抹","直接铺新瓦覆盖","拆除苫背层检查"],"answer":[1],"explanation":"知识点是瓦垄勾抹灰修缮工序。正确项瓦件完好时只需清理旧灰缝并重新勾抹，恢复防水与稳固。整垄揭瓦会扰动完好瓦件；直接铺新瓦不解决灰缝渗漏；拆除苫背层属过度处置。"},{"id":294,"type":"single","stem":"传统屋面苫背时，护板灰与泥背之间若需找平，应优先采用下列哪种材料做垫层","options":["掺灰泥","纯白灰","细砂","素土"],"answer":[0],"explanation":"知识点为苫背分层做法。掺灰泥是护板灰与泥背之间常用的找平垫层，既有粘结性又便于找坡；纯白灰强度高但易裂、不宜厚垫；细砂松散无粘结力、不能形成整体垫层；素土干缩大、易粉化，不能作为找平垫层。"},{"id":295,"type":"single","stem":"筒瓦屋面盖瓦时，若发现筒瓦与底瓦之间空隙偏大，传统瓦作中正确的处理方式是","options":["在筒瓦内用灰浆填实挤严","将筒瓦敲碎重新配瓦","垫入干瓦片找平","加大盖瓦搭接长度"],"answer":[0],"explanation":"知识点为盖瓦坐灰挤严。筒瓦与底瓦间空隙偏大时应在筒瓦内填灰浆并挤严，保证瓦件稳固、不晃动；敲碎筒瓦会破坏瓦件；垫干瓦片无粘结且易移位；加大搭接长度不能解决底部空隙问题，反而影响瓦垄顺直。"},{"id":296,"type":"single","stem":"修缮古建筑屋面时，发现原有瓦件尚可使用但局部脱节松动，正确的处置顺序是","options":["先清扫瓦垄再逐块归安紧固","先拆下全部瓦件再重新铺瓦","先灌浆粘接再清扫瓦面","先更换松动瓦件再补做灰浆"],"answer":[0],"explanation":"知识点为原状维修与瓦件归安。局部脱节松动应保留可用瓦件，先清扫垄内积尘杂物，再逐块归安、坐灰紧固；全部拆下重铺会破坏原做法与原瓦件；先灌浆会掩盖缝隙且粘结不牢；先更换瓦件会丢失可继续使用的原构件。"},{"id":297,"type":"single","stem":"某古建修缮工程中，瓦工在苫背完成后遇连续降雨，为防止苫背层受淋，下列处置正确的是","options":["及时覆盖防雨材料并做好排水","在苫背层表面撒干灰吸水","趁湿继续抢做瓦面","雨停后直接铺瓦不再检查"],"answer":[0],"explanation":"知识点为苫背养护与防雨。苫背层未干前遇雨应及时覆盖并疏导排水，防止雨水冲刷和浸泡；撒干灰只能吸表面水、不能防雨；趁湿抢做瓦面会扰动苫背层；雨停后直接铺瓦未检查苫背是否受损，可能留下渗漏隐患。"},{"id":298,"type":"multi","stem":"关于古建筑传统瓦作修缮中旧瓦件回用的做法，下列表述正确的有","options":["挑选无裂纹、无缺角的瓦件分类码放","回用前清除瓦件表面苔藓和灰垢","按原瓦垄位置编号后原位归安","有轻微裂纹的瓦件可放在檐口显眼处","不同规格瓦件可混用于同一瓦垄"],"answer":[0,1,2],"explanation":"知识点为旧瓦件回用原则。无裂纹缺角者分类码放、清污、编号原位归安，均符合原状修缮要求；有轻微裂纹的瓦件即使外观尚可也不应放在檐口受力显眼处，易破损渗漏；不同规格混用于同一瓦垄会破坏垄距与搭接，影响防水和观感。"},{"id":299,"type":"single","stem":"在古建筑屋面苫背工序中，下列哪种材料通常作为苫背层的结合层浆料使用","options":["白灰浆","水泥砂浆","石膏浆","沥青玛蹄脂"],"answer":[0],"explanation":"知识点：古建筑苫背结合层浆料以白灰浆为主，传统做法用泼灰或灰膏调制成浆，用于分层苫背时粘结护板灰与泥背。水泥砂浆是近现代材料，与古建传统灰浆体系不同，易开裂且不透气；石膏浆凝结过快，古建苫背不用；沥青玛蹄脂为现代防水材料，非传统苫背做法。"},{"id":300,"type":"multi","stem":"某古建筑屋面修缮中，揭除旧瓦后发现部分底瓦坐灰已经酥松脱落，施工人员拟进行底瓦重新安装，下列做法中符合传统瓦作工艺要求的有","options":["底瓦按压六露四搭接并用灰浆坐实","檐口第一块底瓦改用麻刀灰坐浆固定","底瓦搭接处用素灰勾抹密实以防渗水","底瓦安装前先对瓦件进行选瓦并分类","底瓦与盖瓦同时铺完后再统一灌浆"],"answer":[0,1,3],"explanation":"知识点：传统底瓦安装需选瓦分类、坐灰搭接、檐口加固。底瓦按压六露四搭接并坐灰是标准做法；檐口第一块底瓦用麻刀灰坐浆可增强抗风揭能力；安装前选瓦分类保证瓦垄顺直。底瓦搭接处用素灰勾抹会使瓦件失去伸缩余地且传统做法靠盖瓦压边防水，非底瓦勾缝；底瓦与盖瓦应分垄先后施工，同时铺完再灌浆不符合分层操作程序。"}]}