{"name":"缫丝工题库","level":"五级 / 四级 / 三级 / 二级 / 一级","org":"人力资源和社会保障部门","count":300,"questions":[{"id":1,"type":"single","stem":"自动缫丝机索绪时，茧子在索绪锅内的索绪温度通常控制在多少范围","options":["60～65℃","75～80℃","90～95℃","100℃以上"],"answer":[2],"explanation":"知识点为索绪温度控制。索绪需高温使丝胶膨润、茧丝松散，90～95℃是常用工艺范围。60～65℃温度偏低，丝胶膨润不足，索绪效率低；75～80℃仍未达到索绪所需膨润程度，易出落绪；100℃以上沸腾剧烈，易使茧层受损、绪丝紊乱。","tier":"基础"},{"id":2,"type":"single","stem":"缫丝过程中发现生丝纤度偏细且波动增大，应优先检查哪个环节","options":["集绪器是否堵塞","丝鞘长度是否过短","绪丝是否发生落绪或减少","络交钩是否磨损"],"answer":[2],"explanation":"知识点为纤度异常的因果判断。纤度偏细且波动大，多因缫丝中绪丝根数减少（落绪、添绪不及时），导致目的纤度变细。集绪器堵塞会造成纤度偏粗或断头，而非偏细；丝鞘长度过短主要影响抱合与水分，不直接使纤度变细；络交钩磨损影响丝条成形，不改变纤度。","tier":"进阶"},{"id":3,"type":"single","stem":"缫丝工在巡回中发现某绪丝条出现连续细小糙节，最可能的原因是","options":["茧子煮熟过度","缫丝汤温度偏低","添绪时绪丝未理顺","丝鞘捻度不足"],"answer":[2],"explanation":"知识点为糙节产生原因。添绪时绪丝未理顺，纤维排列紊乱，易形成小糙节。煮熟过度会使茧丝强度下降、易断，不直接产生连续小糙；汤温偏低影响解舒，多表现为落绪增多；丝鞘捻度不足影响抱合，多表现为丝条松散而非糙节。","tier":"进阶"},{"id":4,"type":"single","stem":"自动缫丝机缫丝汤温度一般应保持在","options":["25～30℃","35～40℃","45～50℃","55～60℃"],"answer":[1],"explanation":"知识点为缫丝汤温度。缫丝汤温度通常控制在35～40℃，利于茧丝解舒与丝胶适度膨润。25～30℃温度偏低，解舒不良、落绪多；45～50℃偏高，丝胶溶解过多、丝条易发粘；55～60℃过高，茧层过度膨润，生丝强力下降。","tier":"基础"},{"id":5,"type":"single","stem":"缫丝机上的集绪器（瓷眼）孔径选择不当，直接影响的是","options":["茧子的解舒速度","生丝纤度的均匀度","丝鞘的捻度","缫丝汤的浓度"],"answer":[1],"explanation":"知识点为集绪器作用。集绪器孔径与生丝纤度匹配，孔径过大不能有效控制丝条，纤度均匀度变差；过小则摩擦增大、易断头。解舒速度由煮熟与汤温决定；丝鞘捻度由丝鞘长度与缫速决定；汤浓度由汤温与茧量决定，均与集绪器孔径无直接关系。","tier":"基础"},{"id":6,"type":"single","stem":"当缫丝过程中发生断头，操作工接绪时首先应做的动作是","options":["立即加快缫速补偿产量","先关停该绪缫丝再找绪","迅速找到断头绪丝并理顺后接绪","直接向索绪锅补加新茧"],"answer":[2],"explanation":"知识点为断头处理程序。断头后应先找到断头绪丝、理顺再接入，避免乱丝形成糙节。立即加快缫速会加剧纤度波动；关停该绪缫丝会造成产量损失且非必要；直接补加新茧不解决原绪丝接续问题，反而增加绪丝混乱。","tier":"进阶"},{"id":7,"type":"single","stem":"生丝纤度检验中，纤度偏差（纤度均方差）主要反映的是","options":["生丝的平均粗细","生丝粗细的离散程度","生丝的断裂强度","生丝的抱合性能"],"answer":[1],"explanation":"知识点为纤度检验指标。纤度偏差反映各段生丝纤度偏离平均值的离散程度，值越小越均匀。平均粗细由平均纤度表示；断裂强度属力学指标；抱合性能属丝鞘与纤维结合指标，均非纤度偏差含义。","tier":"基础"},{"id":8,"type":"single","stem":"缫丝车间相对湿度偏低时，生丝容易出现的问题是","options":["纤度偏粗","丝条发脆易断","抱合不良","丝色发黄"],"answer":[1],"explanation":"知识点为车间温湿度对生丝的影响。湿度偏低，丝条水分蒸发快，柔韧性下降，发脆易断。纤度偏粗与绪丝根数、集绪器有关；抱合不良多与丝鞘捻度不足有关；丝色发黄多与煮茧或汤质有关。","tier":"基础"},{"id":9,"type":"single","stem":"某缫丝车间连续多日生丝纤度偏粗，操作记录显示添绪次数正常，最应进一步检查的是","options":["索绪锅水温是否偏低","集绪器孔径是否偏大","茧子煮熟程度是否偏生","丝鞘长度是否偏长"],"answer":[1],"explanation":"知识点为纤度偏粗的排查思路。添绪正常而纤度持续偏粗，说明目的纤度控制环节异常，集绪器孔径偏大不能有效约束丝条，易使实际纤度偏粗。索绪水温偏低影响索绪效率而非纤度；煮熟偏生影响解舒；丝鞘偏长影响抱合与水分，不使纤度变粗。","tier":"进阶"},{"id":10,"type":"single","stem":"缫丝工在交接班时发现上一班生丝小篗成形出现明显叠丝，正确的处置是","options":["直接继续缫丝待下班再处理","调整络交钩位置后继续缫丝并记录","降低缫速等待丝条自然理顺","更换集绪器后重新开车"],"answer":[1],"explanation":"知识点为成形异常的现场处置。叠丝多因络交钩位置不当或络交动程异常，应调整络交机构后继续并记录，避免批量成形不良。直接继续会扩大不良品；降低缫速不能改变络交轨迹，叠丝依旧；更换集绪器针对纤度控制，与成形叠丝无关。","tier":"挑战"},{"id":11,"type":"multi","stem":"影响生丝纤度均匀度的操作因素包括哪些","options":["添绪及时性与绪丝根数稳定","集绪器孔径与丝条匹配","缫丝汤温度与解舒状态","络交钩往复动程与成形","丝鞘长度与抱合状态"],"answer":[0,1,2],"explanation":"知识点为纤度均匀度的多因素影响。添绪及时、绪丝根数稳定是纤度均匀的核心；集绪器孔径匹配可有效约束丝条；汤温与解舒状态影响落绪与绪丝连续性，均直接关系纤度均匀。络交钩动程影响丝条成形与叠丝，不改变纤度；丝鞘长度影响抱合与水分，也不直接决定纤度均匀度。","tier":"进阶"},{"id":12,"type":"single","stem":"缫丝时发现茧丝纤度偏细，需要调整缫丝速度，正确的做法是适当降低卷绕速度并同步调整哪个部件的转速以保持茧丝解舒张力稳定","options":["降低停鼓轮转速","提高索绪锅温度","增大理绪锅水量","减少给茧机茧量"],"answer":[0],"explanation":"知识点是缫丝速度与解舒张力的配合。降低卷绕速度时须同步降低停鼓轮转速，使解舒张力与卷绕速度匹配，避免丝条松弛或断头。提高索绪锅温度影响的是索绪效率而非解舒张力；增大理绪锅水量与解舒张力无直接关系；减少给茧机茧量影响的是缫丝连续性而非张力配合。","tier":"挑战"},{"id":13,"type":"single","stem":"生丝纤度检验中，用纤度机摇取小丝时，若发现丝条有轻微绞缠，正确的处置方法是","options":["剪断绞缠处重新摇取","继续摇取后在计算时扣除绞缠长度","用手轻拉解开绞缠后继续摇取","将绞缠段单独标记后计入丝长"],"answer":[0],"explanation":"知识点是小丝摇取的规范操作。绞缠会导致丝长和纤度测量失真，必须剪断绞缠处重新摇取该段小丝。继续摇取后扣除绞缠长度无法消除纤度偏差；手拉解开会使丝条伸长改变纤度；单独标记计入丝长仍会使该段纤度数据不准确。","tier":"挑战"},{"id":14,"type":"single","stem":"缫丝车间发现某台缫丝机的生丝清洁疵点突然增多，检查索绪工艺参数均正常，下一步应优先检查","options":["卷绕丝道上的导丝器磨损情况","索绪锅水温是否偏低","理绪锅水量是否过大","给茧机茧量是否不足"],"answer":[0],"explanation":"知识点是清洁疵点的异常排查顺序。索绪参数正常时，疵点突增多因丝道部件磨损刮伤丝条，应优先检查导丝器等丝道部件。索绪锅水温偏低影响索绪效率而非清洁疵点；理绪锅水量过大影响理绪效果；给茧机茧量不足影响缫丝连续性，均与清洁疵点突增无直接因果。","tier":"挑战"},{"id":15,"type":"single","stem":"缫丝工在交接班时发现上一班留下的茧子已部分发硬，正确的处理方式是","options":["将发硬茧子单独处理并重新调整索绪温度","将发硬茧子混入新茧中一起索绪","将发硬茧子直接投入理绪锅理绪","将发硬茧子弃去只使用新茧"],"answer":[0],"explanation":"知识点是茧子保存状态对索绪工艺的影响。发硬茧子解舒变差，需单独处理并适当提高索绪温度或延长索绪时间，不能与正常茧混用。混入新茧会使整批索绪不匀；直接投入理绪锅无法解决解舒不良；全部弃去造成原料浪费且不符合节约原则。","tier":"挑战"},{"id":16,"type":"single","stem":"生丝纤度控制中，当缫丝过程中发现丝条纤度逐渐变粗，最可能的原因是","options":["茧丝解舒张力逐渐减小","索绪锅温度逐渐升高","给茧机给茧速度逐渐加快","卷绕速度逐渐降低"],"answer":[0],"explanation":"知识点是纤度变化的成因分析。解舒张力减小会使茧丝在缫制时被拉伸程度降低，丝条实际纤度偏粗。索绪锅温度升高影响索绪而非纤度；给茧速度加快会使纤度偏细而非偏粗；卷绕速度降低会使丝条被拉伸减少，但题干问的是逐渐变粗的主因，解舒张力减小是最直接原因。","tier":"挑战"},{"id":17,"type":"single","stem":"缫丝机运转中停鼓轮处出现丝条频繁脱落，检查张力装置正常，应重点检查","options":["停鼓轮表面是否有油污或磨损","索绪锅水温是否过高","理绪锅水位是否过低","给茧机茧量是否过多"],"answer":[0],"explanation":"知识点是停鼓轮处断头的排查。停鼓轮表面油污或磨损会降低摩擦系数导致丝条脱落，是常见原因。索绪锅水温过高影响索绪效率；理绪锅水位过低影响理绪；给茧机茧量过多影响给茧均匀性，均不直接导致停鼓轮处脱落。","tier":"进阶"},{"id":18,"type":"single","stem":"生丝检验中，断裂强度指标反映的是生丝的哪项性能","options":["丝条抵抗拉伸断裂的能力","丝条抵抗弯曲疲劳的能力","丝条表面抵抗摩擦的能力","丝条抵抗扭转变形的能力"],"answer":[0],"explanation":"知识点是生丝力学性能指标的含义。断裂强度是丝条拉伸至断裂时单位截面积所承受的力，反映抵抗拉伸断裂的能力。弯曲疲劳、表面摩擦、扭转变形分别对应其他性能指标，与断裂强度定义不同。","tier":"基础"},{"id":19,"type":"single","stem":"缫丝过程中若发现丝条上有规律性出现的糙块，最可能的原因是","options":["茧子解舒不良导致落绪频繁","索绪锅温度波动过大","理绪锅水量不稳定","卷绕速度忽快忽慢"],"answer":[0],"explanation":"知识点是糙块疵点的成因。解舒不良的茧子落绪频繁，重新索绪理绪时易带入糙块，形成有规律性糙块。索绪锅温度波动影响索绪效率但不直接产生规律性糙块；理绪锅水量不稳定影响理绪质量；卷绕速度忽快忽慢影响纤度均匀性而非糙块。","tier":"进阶"},{"id":20,"type":"single","stem":"缫丝工在操作给茧机时，发现给茧机送出的茧子大小差异较大，正确的做法是","options":["调整给茧机选茧装置并剔除过大过小茧","将所有茧子混合后继续缫丝","加大给茧机茧量以稀释差异","降低给茧机速度使差异减小"],"answer":[0],"explanation":"知识点是给茧机选茧要求。茧子大小差异大会导致纤度不匀，应调整选茧装置剔除过大过小茧。混合后继续缫丝会使纤度波动加剧；加大茧量不能改变大小差异；降低速度只是延缓问题而非解决选茧不匀。","tier":"挑战"},{"id":21,"type":"single","stem":"生丝纤度检验中，纤度偏差指标主要反映的是","options":["丝条各段纤度偏离平均值的程度","丝条平均纤度与规格的差异","丝条最大纤度与最小纤度之差","丝条纤度随时间变化的趋势"],"answer":[0],"explanation":"知识点是纤度偏差的定义。纤度偏差是各段纤度与平均纤度之差的综合反映，衡量纤度均匀性。平均纤度与规格差异是纤度规格偏差；最大与最小之差是极差；随时间变化趋势属于纤度变化率概念，均与纤度偏差定义不同。","tier":"基础"},{"id":22,"type":"single","stem":"缫丝车间某台机器缫出的生丝抱合力差，检查卷绕张力正常，应重点检查","options":["丝鞘捻度是否合适","索绪锅温度是否偏低","理绪锅水量是否过大","给茧机茧量是否不足"],"answer":[0],"explanation":"知识点是抱合力的影响因素。丝鞘捻度不合适会直接影响抱合力，捻度不足或过大都会使抱合力下降。索绪锅温度偏低影响索绪效率；理绪锅水量过大影响理绪效果；给茧机茧量不足影响缫丝连续性，均不直接决定抱合力。","tier":"进阶"},{"id":23,"type":"multi","stem":"缫丝过程中生丝纤度偏细，可能的原因有哪些","options":["解舒张力过大","卷绕速度过快","给茧机茧量不足","索绪锅温度偏高"],"answer":[0,1],"explanation":"知识点是纤度偏细的成因分析。解舒张力过大使茧丝被过度拉伸，纤度偏细；卷绕速度过快同样使丝条被拉伸过度，纤度偏细。给茧机茧量不足影响缫丝连续性但不直接改变纤度；索绪锅温度偏高影响索绪效率，与纤度偏细无直接因果。","tier":"进阶"},{"id":24,"type":"single","stem":"立缫机索绪时，茧子沉在索绪锅底不浮起，下列处置正确的是","options":["提高索绪锅水温至微沸后继续索绪","延长索绪帚在锅中的回转时间至茧层松解","向索绪锅中加入适量温水并搅动使茧腔吸水","将索绪帚下压使茧子贴近索绪孔"],"answer":[2],"explanation":"索绪依赖茧腔吸水后茧层膨润、丝缕离解，沉茧多因水温偏低或茧腔未充分吸水，加温水并搅动可促吸水。A水温过高会烫伤茧层、增加落绪；B单纯延长索绪时间不解决吸水问题且易损伤茧层；D下压只能暂时贴孔，不能改变茧子不浮的本质。","tier":"进阶"},{"id":25,"type":"single","stem":"缫丝过程中发现生丝纤度持续偏细，下列调整方向正确的是","options":["增加每绪的茧粒数并适当减慢缫丝速度","减少每绪的茧粒数并加快缫丝速度","保持茧粒数不变只提高索绪温度","降低缫丝汤温以增加茧丝离解量"],"answer":[0],"explanation":"纤度偏细说明单位时间集绪的茧丝量不足，应增加茧粒数或减慢速度使集绪量增加。B方向相反会进一步变细；C索绪温度影响解舒不影响集绪茧数；D汤温降低会使解舒变差、落绪增多，纤度更难稳定。","tier":"进阶"},{"id":26,"type":"single","stem":"生丝检验中，纤度偏差指标主要反映的是","options":["生丝细度围绕平均纤度的波动程度","生丝断裂强力与伸长的综合水平","生丝表面颣节的大小与分布密度","生丝抱合性能的均匀程度"],"answer":[0],"explanation":"纤度偏差是各绞丝纤度与平均纤度的离散程度，直接反映细度均匀性。B对应强力检验；C对应清洁或洁净（颣节）检验；D对应抱合检验，三者检测对象不同。","tier":"基础"},{"id":27,"type":"single","stem":"缫丝车间生产中，丝鞘的作用是","options":["增加丝条张力并促进丝胶凝集抱合","提高缫丝汤温以改善解舒","减少索绪时间以提高产量","增大集绪器孔径以降低断头"],"answer":[0],"explanation":"丝鞘由丝条自身捻绞形成，能产生适当张力并使丝胶凝集，增强抱合、减少颣节。B汤温由加热装置控制，与丝鞘无关；C索绪时间由索绪工艺决定；D集绪器孔径是固定件，不因丝鞘改变。","tier":"基础"},{"id":28,"type":"single","stem":"生丝洁净检验中，发现丝条上存在较多小糙（小型颣节），下列工序中最应先排查的是","options":["索绪温度与索绪时间","缫丝汤温与丝鞘长度","复摇车间的丝条张力","打包车间的环境湿度"],"answer":[0],"explanation":"小糙多因索绪时丝缕未充分离解、索绪过度或索绪温度不当造成。B影响抱合与纤度；C复摇张力影响成形与强力；D打包湿度影响丝包贮存，均与小糙形成关系较远。","tier":"挑战"},{"id":29,"type":"single","stem":"缫丝操作中，当发现丝条在集绪器与丝鞘之间出现明显毛丝，正确的处置是","options":["立即停机并检查集绪器是否磨损或有缺口","提高缫丝汤温使丝胶软化","降低缫丝速度以减少张力","增加每绪茧粒数以提高纤度"],"answer":[0],"explanation":"毛丝多因集绪器磨损、缺口刮擦丝条所致，应先停机检查并更换。B汤温升高不能消除机械刮擦；C降速只减少张力，不解决刮擦源；D增加茧粒数改变纤度，与毛丝成因无关。","tier":"挑战"},{"id":30,"type":"single","stem":"自动缫丝机在缫制细纤度生丝时，与缫制粗纤度生丝相比，下列参数调整合理的是","options":["适当减少每绪茧粒数并提高缫丝速度","适当增加每绪茧粒数并降低缫丝速度","保持茧粒数不变并降低索绪温度","减少茧粒数并降低丝鞘张力"],"answer":[0],"explanation":"细纤度生丝单位长度集绪茧丝量少，应减少茧粒数并适当提速以匹配产量与纤度。B会使纤度偏粗；C索绪温度与纤度无直接对应；D减少茧粒数方向对，但降低丝鞘张力会影响抱合，不是合理配套调整。","tier":"进阶"},{"id":31,"type":"single","stem":"缫丝时发现茧丝纤度突然变细且张力下降，最先应检查的部位是哪个？","options":["集绪器是否堵塞","茧子是否已落绪","停篗装置是否失灵","索绪温度是否偏低"],"answer":[1],"explanation":"知识点是缫丝中纤度突变的原因判断。茧丝变细且张力下降，说明正在缫的茧子可能已落绪或即将落绪，应优先检查落绪情况；集绪器堵塞会使丝条受阻、张力反而异常增大；停篗装置失灵影响的是断头后的停车，不会先表现为纤度变细；索绪温度偏低影响索绪效率，不是正在缫丝纤度变细的直接原因。","tier":"挑战"},{"id":32,"type":"single","stem":"缫丝车间测定生丝纤度时，纤度偏差过大，下列哪项因素是首先要排查的？","options":["缫丝汤的pH值","茧丝纤度的均匀程度","车间相对湿度","卷绕张力大小"],"answer":[1],"explanation":"知识点是生丝纤度偏差的成因。纤度偏差主要取决于原料茧茧丝纤度的均匀程度及配茧是否合理，应首先排查；缫丝汤pH影响丝胶溶失和手感，不是纤度偏差首因；车间湿度影响丝条干燥和静电，不直接决定纤度偏差；卷绕张力影响丝条伸长和抱合，与纤度偏差关系次之。","tier":"进阶"},{"id":33,"type":"single","stem":"自动缫丝机在缫丝过程中，感知器的作用是什么？","options":["感知茧子数量并控制给茧","感知丝条张力并调节卷绕","感知缫丝汤温度并加热","感知丝条纤度并控制索绪"],"answer":[0],"explanation":"知识点是自动缫丝机感知器的功能。感知器用于检测缫丝中茧子的粒数，配合给茧机构补充茧子以稳定纤度；感知张力并调节卷绕是张力装置的功能；感知温度并加热是温控装置的功能；感知纤度并控制索绪并非感知器的职责，索绪由索绪机构完成。","tier":"基础"},{"id":34,"type":"single","stem":"缫丝时丝条出现明显的糙疵（颣节），下列哪项操作最可能导致该问题？","options":["索绪时间过长导致绪丝过多","缫丝汤温度偏低使丝胶未充分溶失","缫丝速度过快使丝条来不及干燥","茧子存放时间过短含水率偏高"],"answer":[1],"explanation":"知识点是糙疵的成因。缫丝汤温度偏低，丝胶未充分溶失，茧丝间黏合不良，容易形成糙疵；索绪时间过长主要影响绪丝量和原料消耗，不是糙疵主因；缫丝速度过快主要影响干燥和断头，与糙疵关系较小；茧子存放时间过短含水率偏高会影响解舒，但糙疵的直接原因更多与丝胶溶失不足有关。","tier":"进阶"},{"id":35,"type":"single","stem":"缫丝工在巡回中发现某绪茧子已落绪但添绪机构未及时补充，正确的下一步处置是什么？","options":["立即停车并重新索绪","手动添绪并调整给茧机构","加大缫丝汤流量冲洗绪头","提高卷绕速度弥补产量"],"answer":[1],"explanation":"知识点是落绪后的现场处置。落绪后应先手动添绪维持缫丝，并检查调整给茧机构使其恢复正常自动补茧；立即停车重新索绪会打断生产且非必要；加大汤流量冲洗绪头不能补充茧子；提高卷绕速度会加剧纤度波动，不能弥补落绪。","tier":"进阶"},{"id":36,"type":"single","stem":"缫丝汤温度对生丝质量影响较大，下列哪项是温度偏高的主要危害？","options":["丝胶溶失过多使丝条抱合变差","茧层解舒变差使落绪增多","缫丝汤中茧子沉底","绪丝量减少使索绪困难"],"answer":[0],"explanation":"知识点是缫丝汤温度的作用与危害。温度偏高会使丝胶溶失过多，丝条抱合不良、强力下降；解舒变差、落绪增多通常是温度偏低或水质不良造成的；茧子沉底与温度高低无直接必然联系；绪丝量减少也不是温度偏高的主要危害。","tier":"进阶"},{"id":37,"type":"single","stem":"生丝检验中，切断检验的主要目的是评定什么？","options":["生丝的纤度偏差","生丝的断裂强度","生丝的抱合性能","生丝的清洁洁净"],"answer":[1],"explanation":"知识点是生丝检验项目。切断检验用于测定生丝的断裂强度和伸长率，反映其机械性能；纤度偏差由纤度检验测定；抱合性能由抱合检验测定；清洁洁净由黑板检验评定。","tier":"基础"},{"id":38,"type":"single","stem":"缫丝过程中发现丝条张力忽大忽小，最可能引起该现象的原因是哪个？","options":["缫丝汤温度波动","卷绕张力装置调节不当","索绪机构转速不稳","茧子解舒率偏高"],"answer":[1],"explanation":"知识点是丝条张力波动的成因。卷绕张力装置调节不当会直接造成丝条张力忽大忽小；缫丝汤温度波动主要影响丝胶溶失和纤度，不是张力波动的直接原因；索绪机构转速不稳影响索绪效率；解舒率偏高有利于缫丝，不会造成张力忽大忽小。","tier":"挑战"},{"id":39,"type":"single","stem":"某缫丝工在接班时发现上一班留下的绪头丝条排列紊乱，正确的首要处置是什么？","options":["直接继续缫丝待其自然理顺","停车清理绪头并重新索绪理绪","只调整卷绕张力不处理绪头","加大给茧量掩盖排列问题"],"answer":[1],"explanation":"知识点是交接班时的绪头处置。绪头丝条排列紊乱会影响纤度和断头，应停车清理绪头并重新索绪理绪；直接继续缫丝会持续产生次品；只调张力不能解决排列紊乱；加大给茧量会加剧纤度偏差，掩盖问题。","tier":"进阶"},{"id":40,"type":"single","stem":"缫丝时茧子解舒不良，下列哪项措施最有助于改善解舒？","options":["适当提高缫丝汤温度并调整水质","降低索绪温度缩短索绪时间","提高卷绕速度加快缫丝","减少给茧量降低茧子密度"],"answer":[0],"explanation":"知识点是解舒不良的改善措施。适当提高缫丝汤温度并调整水质可促进丝胶溶失，改善解舒；降低索绪温度、缩短索绪时间会使解舒更差；提高卷绕速度与解舒无关，反而可能增加断头；减少给茧量影响纤度控制，不能改善解舒。","tier":"基础"},{"id":41,"type":"multi","stem":"缫丝工在控制生丝纤度时，下列哪些做法有助于减小纤度偏差？","options":["按茧丝纤度合理配茧","保持给茧机构动作准确","定期检查感知器灵敏度","缫丝汤温度随季节任意调整","卷绕张力按个人习惯设定"],"answer":[0,1,2],"explanation":"知识点是纤度偏差的控制措施。合理配茧可使缫丝中茧丝纤度互补，减小偏差；给茧机构动作准确能保证添绪及时；感知器灵敏可准确感知茧粒数；缫丝汤温度应按规定控制而非任意调整；卷绕张力应按工艺要求设定而非按个人习惯。","tier":"进阶"},{"id":42,"type":"single","stem":"缫丝时发现茧丝纤度偏细，需要调整缫丝速度，正确的操作方向是","options":["适当降低缫丝速度","适当提高缫丝速度","保持缫丝速度并增加茧粒数","保持缫丝速度并减少茧粒数"],"answer":[0],"explanation":"知识点：缫丝速度与生丝纤度的关系。缫丝速度降低时单位时间通过集绪器的茧丝量减少，在茧粒数不变的情况下生丝纤度会变粗，因此纤度偏细时应降低缫丝速度。A正确，降速可使纤度增粗。B提高速度会使纤度更细。C增加茧粒数会使纤度偏粗超过目标。D减少茧粒数会使纤度进一步偏细。","tier":"进阶"},{"id":43,"type":"single","stem":"缫丝过程中索绪温度偏低时，最常见的直接后果是","options":["索绪效率下降、绪丝量不足","茧层过度软化、绪丝紊乱","蛹体气味加重、丝色变深","丝胶溶失过多、抱合力下降"],"answer":[0],"explanation":"知识点：索绪温度对索绪效果的影响。索绪温度偏低时茧层膨润不足，茧丝间胶着未充分软化，索绪效率下降、绪丝量不足。A正确。B茧层过度软化通常是温度偏高或时间过长所致。C蛹体气味与温度关系不大，主要与水质和茧质有关。D丝胶溶失过多是温度过高或浸泡过久的结果，与温度偏低相反。","tier":"基础"},{"id":44,"type":"single","stem":"缫丝工在巡回操作中发现某绪头绪丝断落，重新索绪后应优先确认的项目是","options":["该绪头茧粒数是否与工艺要求一致","集绪器是否安装到位","缫丝槽水温是否达到上限","丝鞘长度是否超过标准"],"answer":[0],"explanation":"知识点：断绪后恢复操作的质量控制要点。断绪后重新索绪可能改变该绪头的茧粒数，若不核对茧粒数会导致生丝纤度波动，因此应优先确认茧粒数是否符合工艺要求。A正确。B集绪器安装属于开机前检查，断绪不涉及拆卸。C水温是持续控制项，不是断绪后首要核对项。D丝鞘长度属于运转中的常规检查项，与断绪恢复无直接优先关系。","tier":"挑战"},{"id":45,"type":"single","stem":"缫丝车间采用定纤缫丝时，感知器的作用是","options":["检测丝条纤度变化并控制茧粒数补充","检测缫丝槽水温并自动加热","检测丝鞘捻度并调整络交速度","检测茧层厚度并控制索绪时间"],"answer":[0],"explanation":"知识点：定纤缫丝的自动控制原理。定纤缫丝中感知器通过检测丝条纤度变化，反馈控制添绪机构补充茧粒数，使纤度保持在设定范围。A正确。B水温由温度控制系统负责。C丝鞘捻度由丝鞘装置和络交机构决定。D茧层厚度与索绪时间由索绪工艺参数控制，与感知器无关。","tier":"基础"},{"id":46,"type":"single","stem":"某缫丝工在交接班时发现缫丝槽水面浮有较多蛹屑和断绪，正确的处置方式是","options":["先捞除浮屑并逐绪检查绪头状态再接班","直接接班并在运转中逐步清理","放掉槽水重新加满后再接班","提高缫丝速度把浮屑冲走"],"answer":[0],"explanation":"知识点：交接班时的质量责任处置。浮屑和断绪会影响生丝洁净和纤度，应先捞除浮屑并逐绪检查绪头状态，确认正常后再接班。A正确。B带病接班会使质量问题延续。C放水重加会破坏已稳定的水温与绪头状态。D提高速度无法清除浮屑，反而增加断绪。","tier":"挑战"},{"id":47,"type":"single","stem":"缫丝过程中丝条出现明显颣节，与下列哪项操作关系最直接","options":["茧丝离解不良或添绪时丝头搭接不齐","缫丝槽水温略低于工艺下限","丝鞘长度略短于标准值","络交速度略快于标准值"],"answer":[0],"explanation":"知识点：颣节产生的主要原因。颣节多因茧丝离解不良、添绪时丝头搭接不齐或索绪绪丝紊乱造成。A正确。B水温略低主要影响索绪效率和纤度，不直接形成颣节。C丝鞘长度略短影响抱合，不是颣节主因。D络交速度略快影响丝条排列，与颣节关系不直接。","tier":"基础"},{"id":48,"type":"single","stem":"某绪头生丝纤度持续偏粗，检查发现该绪头实际缫丝茧粒数多于工艺规定，正确的处置是","options":["按工艺要求减少该绪头茧粒数并观察纤度变化","提高该绪头缫丝速度以拉细丝条","降低缫丝槽水温使茧丝收缩","增加集绪器孔径使丝条变细"],"answer":[0],"explanation":"知识点：纤度偏粗的处置。纤度偏粗的直接原因是实际茧粒数多于工艺规定，应按工艺要求减少茧粒数并观察纤度变化。A正确。B提高速度会同时影响其他绪头，且不是针对茧粒数超标的处置。C降低水温不能改变纤度偏粗的根本原因。D集绪器孔径影响丝条通过性，不能使丝条变细。","tier":"挑战"},{"id":49,"type":"single","stem":"缫丝过程中生丝纤度突然变细且丝条手感发凉，检查发现茧丝离解张力下降，此时缫丝工应首先采取的正确处置是","options":["立即调低索绪温度并放慢缫丝速度","检查并调整集绪器瓷眼位置与丝鞘张力","向缫丝槽内补加同庄口新茧并保持原速","停车更换更细的纤度感知器规格"],"answer":[1],"explanation":"知识点是缫丝中纤度突变与丝鞘张力及集绪器状态的关联。丝条发凉、离解张力下降常因丝鞘张力变化或集绪器瓷眼位置偏移导致生丝纤度失控，应先检查并调整集绪器与丝鞘张力。选项0错在索绪温度影响的是解舒而非纤度突变的首要因素；选项2错在补加新茧不能解决张力异常；选项3错在感知器规格应与目标纤度匹配，随意更换会加重纤度偏差。","tier":"挑战"},{"id":50,"type":"multi","stem":"关于缫丝过程中生丝纤度控制与质量检验的以下做法，哪些是符合工艺要求的","options":["定时抽取丝片做纤度检验并记录偏差","根据茧丝纤度曲线调整各绪添绪时机","发现纤度偏差超标后立即停车整绪","用同一台纤度仪抽检不同庄口生丝","按黑板检验结果调整缫丝张力"],"answer":[0,1,4],"explanation":"知识点是缫丝纤度控制与质量检验的工艺规范。定时抽检并记录偏差可及时掌握纤度波动；按茧丝纤度曲线调整添绪时机是控制平均纤度的核心手段；按黑板检验结果调整张力能改善生丝匀度。选项2错在纤度偏差超标应先分析原因并逐步调整，立即停车整绪会打乱缫丝连续性且未必消除偏差；选项3错在不同庄口生丝应分别检验，共用纤度仪易造成交叉污染和测量误差。","tier":"进阶"},{"id":51,"type":"single","stem":"缫丝时发现茧丝纤度偏细且波动大，最应先检查的工艺环节是","options":["煮茧温度是否偏高","缫丝汤温是否偏低","集绪器孔径是否偏大","茧丝纤度是否偏细"],"answer":[1],"explanation":"缫丝汤温偏低会使茧丝离解不良、张力变化大，导致纤度偏细且波动；煮茧温度偏高主要影响解舒而非纤度波动；集绪器孔径偏大主要影响丝条集束和颣节；茧丝纤度是原料属性，不是可调工艺环节。"},{"id":52,"type":"single","stem":"生丝纤度检验中，纤度偏差率反映的是","options":["生丝的平均纤度大小","生丝纤度不匀的程度","生丝断裂强度的高低","生丝含胶量的多少"],"answer":[1],"explanation":"纤度偏差率是衡量生丝纤度均匀性的指标，反映纤度不匀程度；平均纤度是纤度平均值；断裂强度是力学指标；含胶量是化学组分指标，三者均与偏差率含义不同。"},{"id":53,"type":"single","stem":"自动缫丝机缫制20/22旦生丝时，若茧丝纤度偏粗且绪间差异大，合理的配茧方式是","options":["全部选用偏细的茧","按纤度分档后搭配缫制","随机抽取不分类直接缫","只选用同一庄口的茧"],"answer":[1],"explanation":"配茧的核心是按茧丝纤度分档搭配，使各绪平均纤度接近设计规格；全部选偏细茧会使生丝偏细；随机抽取无法控制纤度差异；只选同一庄口若不纤度分档仍不能解决绪间差异。"},{"id":54,"type":"single","stem":"缫丝过程中丝条频繁出现颣节，最先应排查的部位是","options":["集绪器与丝鞘","索绪帚与汤温","茧层含水率","卷绕张力"],"answe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差，缫丝时断绪增多；解舒变好、断绪减少与水温偏低的实际效果相反；解舒不变且产量提高不符合规律；解舒变好同时速度降低也自相矛盾。"},{"id":75,"type":"single","stem":"缫丝工在缫制细纤度生丝时，集绪器孔径应","options":["比缫粗纤度时适当减小","比缫粗纤度时适当增大","与缫粗纤度时完全相同","根据索绪时间长短选择"],"answer":[0],"explanation":"集绪器孔径应与丝条纤度相匹配，细纤度丝条直径小，孔径适当减小才能有效集绪并去除糙颣；孔径增大会使细丝条得不到有效控制；与粗纤度完全相同则控制不精细；索绪时间与集绪器孔径选择无关。"},{"id":76,"type":"single","stem":"自动缫丝机运转中，缫丝槽内茧子出现\"吊糙\"现象，通常是指","options":["茧子沉在槽底不动","茧子被绪丝吊起悬于槽中","茧子浮在水面打转","茧子被水流冲入集绪器"],"answer":[1],"explanation":"吊糙是茧子被绪丝吊起悬于槽中、不能正常沉浮翻滚的现象，会阻碍索绪和缫丝；沉底不动、浮面打转、冲入集绪器均不是吊糙的定义，分别属于沉茧、浮茧和进绪异常。"},{"id":77,"type":"single","stem":"缫丝车间进行生丝纤度检验时，若同一绞丝内纤度偏差过大，首先应检查","options":["缫丝槽水温是否均匀","索绪帚转速是否稳定","缫丝粒数是否一致","车间相对湿度是否达标"],"answer":[2],"explanation":"同一绞丝纤度偏差过大，最常见原因是缫丝过程中粒数不一致，如添绪不当、落绪后未及时补齐；水温不均匀会影响解舒但不直接造成绞内纤度偏差；索绪帚转速影响索绪效率；车间湿度影响丝条含水率，与绞内纤度偏差关系较小。"},{"id":78,"type":"single","stem":"立缫机缫丝时，添绪操作的正确做法是","options":["将绪丝直接搭在丝条上不捻合","将绪丝与丝条捻合后再引入集绪器","将绪丝甩入缫丝槽任其自然粘附","将绪丝穿过集绪器后再与丝条并合"],"answer":[1],"explanation":"添绪时须将新绪丝与原有丝条捻合后再引入集绪器，保证丝条连续、纤度稳定；直接搭上不捻合会脱结断头；甩入槽中自然粘附无法保证连接强度；先穿集绪器再并合顺序颠倒，操作不便且易断。"},{"id":79,"type":"single","stem":"缫丝工发现缫出的生丝颜色发暗、手感发脆，最可能的原因是","options":["缫丝槽水温偏高、丝胶溶失过多","缫丝槽水温偏低、丝胶膨润不足","索绪时间偏短、茧子未充分解舒","缫丝速度偏快、丝条张力过大"],"answer":[0],"explanation":"水温偏高使丝胶过度溶失，丝条失去胶着保护，颜色发暗、手感发脆；水温偏低主要造成解舒不良、断绪增多，丝条不会发脆；索绪时间偏短影响索绪效率；缫丝速度偏快主要造成断头增多，与丝条发脆发暗关系不大。"},{"id":80,"type":"single","stem":"立缫机缫丝时，索绪锅水温偏低会导致下列哪种现象","options":["索绪效率下降，绪丝量不足","茧层丝胶溶失过多，丝条发脆","蛹体破裂，茧丝被污染","缫丝张力过大，丝条易断"],"answer":[0],"explanation":"知识点：索绪温度与索绪效果的关系。水温偏低时丝胶膨润不足，索绪效率下降、绪丝量不足，正确项符合原理；丝胶溶失过多对应的是水温偏高；蛹体破裂与索绪温度无关，多与煮茧或蛹体处理有关；张力过大与索绪水温无直接关系。"},{"id":81,"type":"single","stem":"缫丝过程中发现生丝纤度持续偏细，在集绪器、茧丝纤度均正常的情况下应优先检查","options":["缫丝速度是否偏快","茧粒数是否偏少","索绪时间是否偏长","丝鞘长度是否偏短"],"answer":[1],"explanation":"知识点：生丝纤度与缫丝茧粒数的关系。纤度偏细最直接的原因是同时缫制的茧粒数偏少，应先核对茧粒数；缫丝速度偏快影响的是张力与断头率，不直接改变纤度；索绪时间偏长影响绪丝量和效率；丝鞘长度偏短主要影响抱合与张力，不直接决定纤度粗细。"},{"id":82,"type":"single","stem":"缫丝车间测定生丝纤度时，纤度检验的试样长度通常采用的规格是","options":["50 回","100 回","200 回","400 回"],"answer":[1],"explanation":"知识点：生丝纤度检验的试样规格。生丝纤度检验通常以 100 回（即 100 圈）为一个纤度丝绞进行称量计算；50 回多用于短片段检测；200 回、400 回不是纤度检验的常规试样规格，会改变纤度计算基准。"},{"id":83,"type":"single","stem":"缫丝时丝鞘的作用是使茧丝之间产生抱合，下列因素中直接影响丝鞘抱合效果的是","options":["丝鞘的捻数和长度","索绪锅的水位高度","茧丝的纤度均匀度","集绪器的孔径大小"],"answer":[0],"explanation":"知识点：丝鞘的形成与抱合作用。丝鞘通过捻数和长度使茧丝相互绞合而增加抱合，捻数和长度直接决定抱合效果；索绪锅水位影响索绪，不直接决定丝鞘抱合；茧丝纤度均匀度是茧质因素；集绪器孔径影响丝条通道与张力，不是丝鞘抱合的直接决定因素。"},{"id":84,"type":"single","stem":"缫丝工在巡回操作中发现一粒茧的绪丝已断但茧仍浮在索绪锅中，正确的处置是","options":["立即用索绪帚重新索绪后添绪","将该茧直接捞除投入蛹衬","把该茧拨到锅边待下轮统一处理","提高索绪锅温度后再索绪"],"answer":[0],"explanation":"知识点：断绪茧的添绪处置。断绪茧仍具缫丝价值，应重新索绪后添绪；直接捞除投入蛹衬会造成原料浪费；拨到锅边待下轮处理会延长落绪时间、影响产质量；单纯提高温度并不能解决该粒茧的断绪问题，且可能影响整锅工艺。"},{"id":85,"type":"single","stem":"自动缫丝机缫丝时，给茧机送茧不及时会导致下列哪种直接后果","options":["生丝纤度偏细甚至断头","生丝抱合不良","丝鞘捻数不足","茧丝清洁度下降"],"answer":[0],"explanation":"知识点：给茧机供茧与纤度的关系。给茧不及时使缫制茧粒数减少，生丝纤度偏细甚至断头；抱合不良主要与丝鞘有关；丝鞘捻数由丝鞘装置决定；清洁度与茧质和集绪器状态有关，均非给茧不及时的直接后果。"},{"id":86,"type":"single","stem":"缫丝过程中集绪器孔径过大，可能造成的影响是","options":["丝条张力偏小、抱合变差","丝条张力偏大、断头增多","索绪效率明显下降","茧丝纤度自动变细"],"answer":[0],"explanation":"知识点：集绪器孔径对缫丝张力的影响。孔径过大时对丝条的摩擦约束减小，张力偏小、抱合变差；孔径过小才会造成张力偏大、断头增多；索绪效率与索绪系统有关；茧丝纤度由茧本身决定，不会因集绪器孔径改变。"},{"id":87,"type":"single","stem":"某缫丝工在缫制一批茧时发现生丝纤度忽粗忽细，经查茧粒数正常、给茧正常，下一步应重点检查","options":["定纤感知器的工作状态","索绪锅的水温高低","丝鞘的捻数多少","缫丝车间的相对湿度"],"answer":[0],"explanation":"知识点：定纤感知器与纤度控制。茧粒数和给茧正常而纤度波动，说明纤度控制环节异常，应重点检查定纤感知器；索绪水温影响索绪效率；丝鞘捻数影响抱合；车间湿度影响断头率，均不是纤度忽粗忽细的首要检查点。"},{"id":88,"type":"single","stem":"缫丝工在交接班时发现本班生丝平均纤度比标准偏粗，经核实缫制茧粒数无误，最可能的原因是","options":["茧丝纤度偏粗或茧层厚薄不匀","缫丝速度设定偏高","索绪时间设定偏短","丝鞘长度设定偏短"],"answer":[0],"explanation":"知识点：纤度偏差的原因分析。茧粒数无误而纤度偏粗，应从茧质本身找原因，如茧丝纤度偏粗或茧层厚薄不匀；缫丝速度偏高主要影响断头率；索绪时间偏短影响绪丝量；丝鞘长度偏短影响抱合，均不直接使纤度整体偏粗。"},{"id":89,"type":"single","stem":"缫丝时生丝纤度偏细且波动大，下列针对茧丝纤度不匀的处置中，正确的一项是","options":["将偏细的茧单独合并到同一绪缫制以平衡纤度","按茧层厚薄和茧丝纤度分组，分别配茧缫制","把偏细的茧投入相邻绪头由该绪自行消化","将偏细的茧混入正常茧中继续缫制"],"answer":[1],"explanation":"知识点是配茧与纤度控制。茧丝纤度差异要靠分组配茧来稳定生丝纤度，所以B正确。A把偏细茧合到同一绪只会整体偏细；C让相邻绪消化会造成该绪纤度突变；D混入正常茧无法消除不匀，都是看似合理但细节错误的做法。"},{"id":90,"type":"single","stem":"缫丝过程中索绪温度偏低时，对索绪效果和生丝质量的影响，正确的一项是","options":["茧层软化不足，索绪效率下降且易拉断茧丝","茧层过度软化，索绪过快导致蛹屑混入","索绪温度偏低会使丝胶溶失过多影响抱合","索绪温度偏低能减少落绪从而提高产量"],"answer":[0],"explanation":"知识点是索绪温度与茧层软化关系。温度偏低茧层软化不足，索绪困难、易拉断，A正确。B是温度偏高的表现；C温度偏低丝胶溶失少而非过多；D温度偏低落绪反而增加，产量不会因此提高。"},{"id":91,"type":"single","stem":"缫丝工发现集绪器（瓷眼）处丝条出现毛丝和断头增多，最应优先检查的项目是","options":["缫丝汤温度是否偏低","集绪器孔径是否磨损或丝胶堵塞","茧子是否已经过触蒸处理","丝鞘长度是否超过规定范围"],"answer":[1],"explanation":"知识点是集绪器异常判断。毛丝和断头集中出现在集绪器处，多因孔径磨损或丝胶堵塞，B正确。汤温偏低影响索绪和解舒；触蒸处理是前道工序；丝鞘长度主要影响抱合与纤度，均非此处首要原因。"},{"id":92,"type":"single","stem":"生丝纤度检验中，一批生丝的平均纤度为22.2dtex，纤度偏差为1.5dtex，纤度最大偏差为4.8dtex，判定该批生丝纤度指标时应依据的标准是","options":["仅平均纤度符合即可判合格","纤度偏差和最大偏差均需符合对应规格要求","最大偏差符合即可忽略纤度偏差","平均纤度与纤度偏差符合即可不看最大偏差"],"answer":[1],"explanation":"知识点是生丝纤度检验判定规则。纤度偏差和纤度最大偏差都是分级考核指标，需同时符合，B正确。A、D漏掉偏差考核项；C忽略纤度偏差，都不符合检验要求。"},{"id":93,"type":"single","stem":"缫丝车间发现某绪头生丝抱合不良，检验时反复摩擦易起毛，下列调整措施中最直接有效的是","options":["适当增大丝鞘长度并调整丝鞘捻度","降低缫丝汤温度以减慢丝条干燥","减少每绪的茧粒数使丝条变细","提高索绪温度以加快索绪速度"],"answer":[0],"explanation":"知识点是丝鞘与抱合关系。丝鞘长度和捻度直接影响抱合，增大丝鞘并调整捻度可改善抱合，A正确。B降低汤温不利于丝胶适度凝固；C减少茧粒数只改纤度；D提高索绪温度与抱合无直接关系。"},{"id":94,"type":"single","stem":"自动缫丝机运行中某绪频繁落绪，挡车工例行检查时首先应观察的部位是","options":["停箍装置是否灵敏","给茧机是否缺茧或茧子堆积","卷取张力是否过大","丝鞘是否已经断裂"],"answer":[1],"explanation":"知识点是自动缫丝机落绪原因排查。频繁落绪常见于给茧机供茧异常，应先看给茧机是否缺茧或堆积，B正确。停箍、卷取张力、丝鞘断裂会造成其他故障现象，不是落绪频繁的首要排查点。"},{"id":95,"type":"single","stem":"缫丝用水的总硬度偏高时，对缫丝过程和生丝质量的主要影响是","options":["丝胶溶解加快，生丝抱合变差","丝胶溶解减慢，索绪困难且丝色发暗","茧层吸水过快，解舒明显改善","缫丝汤泡沫增多，纤度自动变细"],"answer":[1],"explanation":"知识点是缫丝用水硬度的影响。硬水中钙镁离子多，会抑制丝胶溶解，造成索绪困难、丝色发暗，B正确。A方向相反；C硬水不会使解舒明显改善；D泡沫与硬度无此直接因果关系。"},{"id":96,"type":"single","stem":"生丝检验取样时，关于抽样方法和试样数量的做法，正确的一项是","options":["从茧站随机抽取若干粒茧作为试样","按批从丝包中随机抽取规定数量的绞丝","从缫丝机上任取一绪的丝作为整批试样","由挡车工自行挑选外观最好的绞丝送检"],"answer":[1],"explanation":"知识点是生丝检验取样规则。应按批从丝包中随机抽取规定数量绞丝，保证代表性，B正确。A取茧不是生丝试样；C单绪丝不能代表整批；D挑最好的丝违反随机抽样原则。"},{"id":97,"type":"single","stem":"缫制细纤度生丝时，若每绪茧粒数配得过多，最可能出现的结果是","options":["生丝纤度偏粗且偏差增大","生丝纤度偏细且抱合下降","生丝纤度不变但丝色变深","生丝纤度偏细且强力提高"],"answer":[0],"explanation":"知识点是茧粒数与纤度关系。每绪茧粒数过多会使生丝纤度偏粗，且各绪差异导致偏差增大，A正确。B、D说偏细方向错误；C茧粒数不改变纤度，说法不成立。"},{"id":98,"type":"multi","stem":"缫丝过程中出现生丝纤度突然变细，下列处置措施中恰当的有","options":["检查给茧机是否缺茧并及时补茧","核查是否有茧子落绪未及时补充","适当增加每绪缫制茧粒数","立即大幅提高缫丝汤温度","观察丝鞘是否断裂并及时接续"],"answer":[0,1,2],"explanation":"知识点是纤度突细的原因与处置。缺茧、落绪未补会使茧粒数减少导致纤度变细，补茧和增加茧粒数可纠正，A、B、C正确。D大幅提高汤温不能补回茧粒数且可能扰乱工艺；E丝鞘断裂会造成断头而非单纯纤度变细，均不恰当。"},{"id":99,"type":"single","stem":"缫丝时发现茧丝纤度偏粗且落绪增多，在索绪汤温正常的前提下，应优先调整的操作是","options":["降低索绪汤温度并延长索绪时间","适当提高缫丝汤温并减慢缫丝速度","减少每绪的茧粒数并降低索绪汤浓度","保持茧量不变仅调快缫丝速度"],"answer":[1],"explanation":"本题考查缫丝汤温与缫丝速度对纤度与落绪的调节原理。缫丝汤温适当提高有利于茧丝解舒、减少落绪，减慢缫丝速度可降低单位时间抽丝量使纤度变细，故B正确。A索绪汤温已正常再降低不利于索绪；C减少茧粒数会使纤度更细而落绪问题未解决，且索绪汤浓度与本题无关；D单纯调快速度会使张力增大反而增加落绪。"},{"id":100,"type":"single","stem":"缫丝车间生丝纤度控制中，常用的纤度单位是","options":["特克斯","旦尼尔","公支","英支"],"answer":[1],"explanation":"本题考查生丝纤度的计量单位。丝绸行业生丝纤度传统以旦尼尔（D）表示，故B正确。A特克斯是线密度单位多用于化纤长丝标准；C公支、D英支均为支数制，表示单位重量长度，与生丝纤度习惯表示不符。"},{"id":101,"type":"single","stem":"立缫机缫丝过程中，茧丝在瓷眼处频繁切断，检查发现瓷眼有细微裂纹，正确的处置是","options":["用细砂纸打磨裂纹处后继续使用","将裂纹瓷眼换到次要绪位继续用","立即更换合格瓷眼并检查同批瓷眼","适当加大缫丝张力压住断头"],"answer":[2],"explanation":"本题考查缫丝通道部件损伤的处理。瓷眼裂纹会割断茧丝，必须更换合格件并排查同批，故C正确。A打磨会改变孔径且留下粗糙面仍伤丝；B裂纹件无论装在哪一绪都会断丝；D加大张力只会加剧断头。"},{"id":102,"type":"single","stem":"缫丝工在巡回中发现某绪茧丝纤度突然变细，最应先检查的环节是","options":["缫丝汤温是否偏高","该绪茧粒数是否减少或落绪","卷绕速度是否偏低","车间相对湿度是否偏低"],"answer":[1],"explanation":"本题考查纤度突变的原因排查。纤度突然变细最常见原因是该绪参与缫丝的茧粒数减少或落绪，故B正确。A汤温偏高一般使解舒好而非突然变细；C卷绕速度偏低会使纤度偏粗而非变细；D湿度偏低影响解舒与断头，不是纤度变细的直接首要原因。"},{"id":103,"type":"single","stem":"索绪汤温过高对缫丝生产造成的直接影响是","options":["茧层丝胶溶失过多、茧丝强力下降","索绪效率降低、绪丝难以引出","茧丝纤度变粗、落绪减少","缫丝汤浓度升高、丝色变深"],"answer":[0],"explanation":"本题考查索绪汤温过高的危害。汤温过高使丝胶过度溶失，茧丝强力下降易断，故A正确。B汤温过低才索绪困难；C汤温过高不会使纤度变粗；D丝色变化与索绪汤温无直接对应关系。"},{"id":104,"type":"single","stem":"缫丝机添绪时，新茧绪丝搭接的正确做法是","options":["将新绪丝直接甩入缫丝汤中","在缫丝汤中把新绪丝与旧绪丝并合捻接","在卷绕部把新绪丝打结接上","待旧绪丝落完后重新索绪再缫"],"answer":[1],"explanation":"本题考查添绪搭接的操作规范。添绪应在缫丝汤中利用丝胶粘合并合捻接，使纤度连续，故B正确。A甩入汤中无法有效搭接；C在卷绕部打结会形成结头疵点；D重新索绪会中断生产并造成纤度波动。"},{"id":105,"type":"single","stem":"检验生丝纤度时，同一绞丝在规定长度内称重后计算纤度，若称重结果偏大，说明","options":["生丝实际纤度偏细","生丝实际纤度偏粗","生丝回潮率一定偏低","生丝抱合力一定偏差"],"answer":[1],"explanation":"本题考查纤度检验的称重原理。规定长度下重量偏大即纤度偏粗，故B正确。A与称重结果相反；C回潮率需另测，不能由纤度称重直接判定；D抱合力是另一项指标，与纤度称重无直接对应。"},{"id":106,"type":"single","stem":"缫丝车间发现某批生丝切断次数明显偏高，现场记录显示缫丝汤温、索绪汤温均正常，应优先排查的是","options":["茧的煮茧程度与解舒是否均匀","车间照明亮度是否足够","卷绕丝片宽度是否偏窄","操作工巡回间隔是否偏长"],"answer":[0],"explanation":"本题考查切断偏高的原因分析。汤温正常时切断多与茧本身煮茧和解舒均匀性有关，故A正确。B照明影响操作但不直接造成切断；C丝片宽度影响干燥与成形，不是切断主因；D巡回间隔长会影响添绪及时性，但题中已指向批量切断，应先查茧质。"},{"id":107,"type":"single","stem":"缫丝工在交接班时发现缫丝汤面浮有较多茧屑和丝胶沫，正确的处理是","options":["继续生产待下班前统一清理","用勺撇除浮屑并检查汤温汤位","加大缫丝速度把浮屑带走","向汤中补加冷水使浮屑下沉"],"answer":[1],"explanation":"本题考查缫丝汤面清洁的现场处置。浮屑会影响丝质与断头，应及时撇除并检查汤温汤位，故B正确。A浮屑持续影响丝质不宜等到下班；C加大速度不能去除浮屑；D补冷水会降低汤温影响解舒。"},{"id":108,"type":"single","stem":"生丝检验中，抱合力指标主要反映的是","options":["单根茧丝的抗拉强度","丝条中茧丝相互胶着的牢固程度","生丝纤度的均匀程度","生丝表面的色泽差异"],"answer":[1],"explanation":"本题考查抱合力的定义。抱合力指丝条中茧丝相互胶着的牢固程度，故B正确。A抗拉强度是断裂强度指标；C均匀程度由纤度偏差等反映；D色泽差异属外观检验内容。"},{"id":109,"type":"multi","stem":"缫丝过程中出现纤度偏差偏大的异常，下列处置措施中恰当的有","options":["检查各绪茧粒数是否一致并及时添绪","核对缫丝汤温是否稳定在工艺范围","检查纤度检验取样长度与称重是否规范","适当提高索绪汤温以增加绪丝量","检查卷绕速度是否忽快忽慢"],"answer":[0,1,2],"explanation":"本题考查纤度偏差偏大的综合处置。A茧粒数不一致直接造成纤度波动，需检查添绪；B汤温不稳影响解舒与纤度；C取样或称重不规范会造成检验偏差。D提高索绪汤温影响索绪而非直接纠正纤度偏差；E卷绕速度波动影响张力与成形，不是纤度偏差的首要调节因素，故不选。"},{"id":110,"type":"single","stem":"缫丝机运转中索绪效率明显下降，绪丝量偏少且多为单根，最应先检查的部位是","options":["索绪帚与索绪锅水温","停篗装置与丝鞘位置","集绪器孔径与瓷眼","络交钩导丝速度"],"answer":[0],"explanation":"索绪效率低、绪丝偏少多与索绪帚磨损、索绪锅水温偏低或水量不足有关，故先查索绪帚与索绪锅水温。停篗装置与丝鞘偏重落绪、断绪控制；集绪器孔径影响纤度与丝条张力；络交钩导丝速度影响丝片成形，与索绪效率无直接关系。"},{"id":111,"type":"single","stem":"缫丝车间测定生丝纤度时，纤度偏差反映的是","options":["生丝粗细偏离设计规格的程度","生丝强力低于标准值的幅度","生丝伸长率波动的范围","生丝含胶量高低的变化"],"answer":[0],"explanation":"纤度偏差指实测纤度相对设计规格的偏离程度，是评定生丝纤度均匀性的核心指标。强力、伸长率属于力学性能指标；含胶量属于丝胶含量指标，三者与纤度偏差的计量对象不同。"},{"id":112,"type":"single","stem":"缫丝过程中发现丝条在集绪器处频繁起毛、断头增多，而茧丝本身质量正常，应优先调整的是","options":["集绪器孔径与丝条通过位置","索绪锅水温与索绪时间","缫丝车速与卷绕张力","车间相对湿度与温度"],"answer":[0],"explanation":"茧丝正常而集绪器处起毛断头，多因集绪器孔径偏小、瓷眼磨损或丝条未对准中心，故优先调整集绪器孔径与丝条通过位置。索绪水温影响索绪效率；车速与张力影响纤度与断绪分布；温湿度属环境因素，均非该现象的首要原因。"},{"id":113,"type":"single","stem":"自动缫丝机运转中发现某绪落绪后长时间不添绪，其余绪正常，最可能的原因是","options":["该绪添绪机构或给茧盒供茧不畅","全机索绪锅水温整体偏低","总停篗装置动作失灵","络交机构导丝速度过快"],"answer":[0],"explanation":"单绪落绪后不添绪而其余绪正常，说明故障局限在该绪的添绪机构或给茧盒供茧环节。索绪锅水温偏低会影响全机索绪效率；总停篗失灵会造成全机性停车；络交速度过快影响丝片成形，均不会只表现为单绪不添绪。"},{"id":114,"type":"single","stem":"缫制细规格生丝时，为控制纤度偏差，通常采取的措施是","options":["适当降低缫丝车速并提高添绪精度","提高索绪锅水温以增加绪丝量","增大集绪器孔径以减小丝条摩擦","加快络交速度以缩短卷绕周期"],"answer":[0],"explanation":"细规格生丝纤度基数小，车速过快易造成纤度波动，故适当降低车速并提高添绪精度有利于控制纤度偏差。提高索绪水温影响索绪效率而非纤度控制；增大集绪器孔径会削弱纤度控制；加快络交速度影响丝片成形，不解决纤度偏差。"},{"id":115,"type":"single","stem":"缫丝生产中丝鞘的作用是","options":["使茧丝抱合紧密并去除部分丝胶水分","增加生丝纤度以补偿落绪损失","提高索绪锅水温以促进茧层解舒","调节络交速度以改善丝片成形"],"answer":[0],"explanation":"丝鞘由多根茧丝合并捻绞而成，可使茧丝抱合紧密、去除部分丝胶和水分，是缫丝的重要工序环节。丝鞘不用于补偿纤度、不加热索绪锅、也不调节络交速度，其余选项均把丝鞘功能与其他机构混淆。"},{"id":116,"type":"single","stem":"缫丝工在巡回中发现丝条张力忽大忽小、丝片成形松紧不匀，应首先检查","options":["络交机构与张力调节装置","索绪帚磨损程度","给茧盒内茧量多少","集绪器瓷眼是否破损"],"answer":[0],"explanation":"丝条张力波动与丝片成形不匀，主要与络交机构动作、张力调节装置状态有关，故首先检查这两处。索绪帚磨损影响索绪效率；给茧盒茧量影响添绪供茧；集绪器破损会造成起毛断头，均不是张力忽大忽小的首要原因。"},{"id":117,"type":"single","stem":"某缫丝车间生丝纤度偏差连续超标，现场记录显示缫丝车速频繁变动、添绪操作间隔不均，最合理的处置是","options":["稳定缫丝车速并规范添绪操作间隔","提高索绪锅水温以增加绪丝量","更换集绪器瓷眼以减小摩擦","加大络交速度以改善丝片成形"],"answer":[0],"explanation":"案例中纤度偏差超标的直接诱因是车速频繁变动与添绪间隔不均，故应稳定车速并规范添绪操作。提高索绪水温、更换瓷眼、加大络交速度分别针对索绪效率、丝条摩擦和丝片成形，均不能纠正由车速与添绪不稳引起的纤度偏差。"},{"id":118,"type":"single","stem":"缫丝工交接班时发现上一班生丝回潮率偏高，本班正确的处置是","options":["按工艺要求调整车间温湿度并复检回潮率","直接加大缫丝车速以加快水分蒸发","提高索绪锅水温以烘干丝条","减少丝鞘捻绞次数以降低含水"],"answer":[0],"explanation":"回潮率偏高应通过调整车间温湿度等工艺条件并复检来纠正。加大车速会加剧纤度波动；提高索绪水温影响索绪而非丝条干燥；减少丝鞘捻绞会削弱抱合并影响丝质，三者都不是纠正回潮率的正确途径。"},{"id":119,"type":"single","stem":"缫丝机停篗装置的主要作用是","options":["在落绪或断绪时及时停止卷绕以防止纤度缺失","自动调节索绪锅水温以稳定索绪效率","控制络交速度以保证丝片成形均匀","监测集绪器孔径变化以预警断头"],"answer":[0],"explanation":"停篗装置在落绪、断绪时使卷绕停止，避免无丝段卷入造成纤度缺失，是保证生丝纤度均匀的重要机构。水温调节、络交速度控制、集绪器监测分别由相应装置或人工完成，不属停篗装置功能。"},{"id":120,"type":"single","stem":"缫丝时发现绪下茧粒数比工艺设计少2粒，索绪锅汤温正常、茧层无异常，应优先检查的部位是","options":["索绪帚与茧丝的接触状态","给茧机茧斗内有无空茧","缫丝槽汤温是否偏低","丝鞘长度是否超标"],"answer":[1],"explanation":"知识点：绪下茧粒数不足的常见原因。茧斗空茧会造成给茧不足，直接导致绪下粒数减少，故优先查茧斗；索绪帚接触状态影响索绪效率而非已缫绪下粒数；缫丝槽汤温偏低影响解舒而不直接减少粒数；丝鞘长度影响抱合与除颣，与粒数无直接关系。"},{"id":121,"type":"single","stem":"生丝纤度控制中，当缫丝槽汤温比工艺规定偏低时，对生丝纤度最直接的影响是","options":["纤度偏细且波动增大","纤度偏粗且波动减小","纤度不变但抱合下降","纤度先粗后细循环变化"],"answer":[0],"explanation":"知识点：汤温与解舒、纤度的关系。汤温偏低使茧丝解舒变差、离解阻力增大，实际落绪增多，单位时间缫取的茧丝量减少且不匀，故纤度偏细且波动增大；偏粗、波动减小与汤温偏低机理相反；抱合下降不是汤温偏低对纤度的直接结果；先粗后细循环变化不符合汤温稳定的实际影响。"},{"id":122,"type":"single","stem":"缫丝工在巡回中发现某绪丝条出现连续细小糙颣，其他绪正常，下一步最合理的处置是","options":["立即停车更换该绪全部茧粒","检查该绪丝鞘与集绪器是否夹持异物","提高全槽汤温后继续观察","降低该绪缫丝速度继续缫制"],"answer":[1],"explanation":"知识点：局部糙颣的现场排查。连续细小糙颣多因该绪丝鞘或集绪器夹持异物、通道不畅所致，先查通道最合理；立即更换全部茧粒属过度处置且未定位原因；提高全槽汤温会影响其他正常绪；降低速度只能暂时掩盖不能消除异物。"},{"id":123,"type":"single","stem":"自动缫丝机给茧机每斗茧粒数设定偏多时，最容易造成的质量问题是","options":["生丝纤度偏粗且匀度变差","生丝纤度偏细且切断增多","生丝抱合不良且颣节增多","生丝回潮率偏高"],"answer":[0],"explanation":"知识点：给茧量与纤度的关系。每斗茧粒数偏多使单位时间投入茧丝量增加，纤度偏粗且各绪差异增大、匀度变差；偏细、切断增多与给茧偏多相反；抱合与颣节主要受丝鞘和除颣影响；回潮率由干燥和平衡条件决定，与给茧量无直接关系。"},{"id":124,"type":"single","stem":"缫丝车间相对湿度过低时，对缫丝操作与生丝质量的主要影响是","options":["茧丝含水减少、丝条发脆易断","茧层含水增加、解舒变好","丝鞘抱合增强、颣节减少","汤温升高、茧丝离解加快"],"answer":[0],"explanation":"知识点：车间温湿度对缫丝的影响。相对湿度过低使茧丝水分蒸发过快、丝条发脆，断头增多；茧层含水增加与低湿相反；抱合增强、颣节减少不是低湿的结果；汤温由加热控制，不随空气湿度直接升高。"},{"id":125,"type":"single","stem":"缫丝工在测定生丝纤度时，同一绞丝在纤度机上连续两次称量结果差异较大，最应先排除的因素是","options":["纤度机秤盘是否水平、零点是否漂移","生丝回潮率是否达到平衡","纤度机传动皮带是否打滑","称量时环境气流是否过大"],"answer":[0],"explanation":"知识点：纤度测定误差排查。连续称量差异大，首先应确认仪器自身零点与水平状态是否正常；回潮率影响绝对纤度但不会使同一绞丝两次称量差异大；皮带打滑影响纤度机牵伸而非称量；环境气流影响较小且通常在称量箱内已控制。"},{"id":126,"type":"single","stem":"缫丝工更换索绪帚后，发现索绪效率反而下降、绪下茧粒数不足，最可能的原因是","options":["索绪帚安装角度不当或帚丝过密","索绪锅汤温设定偏低","缫丝槽汤温设定偏高","给茧机茧斗容量偏小"],"answer":[0],"explanation":"知识点：索绪帚安装与索绪效率。更换索绪帚后效率下降，多因安装角度不当或帚丝过密影响茧子翻滚与索绪；索绪锅汤温偏低是原有设定问题，与更换索绪帚无直接因果；缫丝槽汤温偏高影响解舒而非索绪；茧斗容量影响给茧量而非索绪效率。"},{"id":127,"type":"single","stem":"缫丝工在交接班时发现缫丝槽汤色发浑、茧丝手感发滑，正确的处置是","options":["直接继续缫制并加强巡回","先排放部分汤水并补加清水至工艺浓度","立即停车更换全部茧粒","提高汤温以杀灭微生物"],"answer":[1],"explanation":"知识点：缫丝汤水质管理。汤色发浑、手感发滑说明汤水浓度与洁净度下降，应先部分换水并补清水恢复工艺浓度；直接继续会影响解舒与生丝质量；更换全部茧粒属过度处置；提高汤温不能解决汤水污染问题。"},{"id":128,"type":"single","stem":"自动缫丝机缫制细纤度生丝时，与缫制粗纤度生丝相比，通常需要","options":["增加每斗茧粒数并降低缫丝速度","减少每斗茧粒数并适当提高缫丝速度","减少每斗茧粒数并降低缫丝速度","增加每斗茧粒数并提高缫丝速度"],"answer":[1],"explanation":"知识点：纤度与给茧量、速度的配合。缫细纤度丝需减少每斗茧粒数以降低单位时间茧丝量，同时适当提高缫丝速度以维持产量与张力；增加粒数会使纤度偏粗；减少粒数又降速会产量过低；增加粒数又提速会造成纤度失控。"},{"id":129,"type":"single","stem":"缫丝时发现索绪效率明显下降，茧子表面已充分润湿，下一步应优先调整的是","options":["降低索绪汤温度","提高索绪汤温度","减少索绪茧量","延长索绪时间"],"answer":[1],"explanation":"知识点：索绪温度与索绪效率的关系。茧层润湿充分但索绪效率低，多因汤温不足使丝胶软化不够，提高汤温能促进解舒。降低汤温会使丝胶更硬、效率更低；减少索绪茧量只改变产量不解决索绪困难；延长索绪时间不能弥补温度不足导致的解舒差。"},{"id":130,"type":"single","stem":"立缫机缫丝过程中，生丝纤度出现周期性偏细，最可能的原因是","options":["缫丝速度偏慢","茧丝纤度偏粗","绪丝卷绕张力偏大","茧子粒数配合偏少"],"answer":[3],"explanation":"知识点：纤度与茧粒数的对应关系。纤度周期性偏细说明实际参与缫丝的茧粒数少于工艺定粒，应检查定粒配合。缫丝速度偏慢主要影响产量而非纤度；茧丝纤度偏粗会使生丝偏粗；张力偏大影响伸长和张力不改变纤度粗细。"},{"id":131,"type":"single","stem":"缫丝车间发现某台缫丝机生丝清洁疵点突然增多，检查发现是集绪器孔口有结块，正确处理是","options":["停机清洗集绪器后继续缫丝","提高缫丝汤温度继续缫丝","降低卷绕速度继续缫丝","更换更粗的集绪器孔继续缫丝"],"answer":[0],"explanation":"知识点：集绪器堵塞与清洁疵点的关系。集绪器孔口结块会刮擦丝条产生裂丝、糙块，须停机清洗。提高汤温不能清除结块；降低卷绕速度只是减缓，不解决已存在的刮擦；更换更粗孔径会改变丝条抱合和纤度控制，属错误处置。"},{"id":132,"type":"single","stem":"缫丝中茧子沉浮不齐、部分茧子长期浮于汤面，最有效的处理措施是","options":["提高索绪汤温度","加大索绪帚回转速度","补充新茧并调整茧量","降低缫丝汤液面高度"],"answer":[2],"explanation":"知识点：缫丝茧量管理与沉浮控制。茧子沉浮不齐多因索绪后熟茧不足或缫丝中落绪补充不及时，应补新茧并调整茧量。提高汤温只影响解舒不解决茧量；加大索绪帚速度影响索绪不解决缫丝中茧量；降低液面不能改变茧子沉浮状态。"},{"id":133,"type":"single","stem":"生丝纤度检验中，纤度偏差是指","options":["各绞丝纤度平均值与设计纤度之差","各绞丝纤度与平均纤度的离散程度","最大纤度与最小纤度之差","平均纤度与公定回潮率折算值之差"],"answer":[1],"explanation":"知识点：纤度偏差与纤度最大偏差的区分。纤度偏差反映各绞丝纤度围绕平均值的离散程度。平均值与设计纤度之差是纤度偏差率概念；最大与最小之差是极差；与公定回潮折算值之差属回潮换算，不是纤度偏差。"},{"id":134,"type":"single","stem":"缫丝工在巡回中发现某绪丝条张力突然增大、丝条发亮，应首先检查","options":["缫丝汤温度是否偏低","茧子是否落绪过多","卷绕张力装置是否异常","索绪汤浓度是否过高"],"answer":[2],"explanation":"知识点：丝条张力异常与卷绕机构的关系。张力突然增大、丝条发亮是典型张力过大表现，应先查张力装置。汤温偏低影响解舒不直接导致张力突增；落绪过多会使纤度变细而非张力突增；索绪汤浓度影响索绪不直接作用于缫丝张力。"},{"id":135,"type":"single","stem":"立缫机缫丝时，若缫丝汤温度过高，对生丝质量的主要影响是","options":["生丝抱合变差、强力下降","生丝纤度变粗、偏差增大","生丝清洁疵点减少、洁净提高","生丝回潮率降低、手感变硬"],"answer":[0],"explanation":"知识点：缫丝汤温度对生丝抱合的影响。汤温过高使丝胶过度软化，丝条抱合不牢，强力下降。纤度变化主要取决于茧粒数配合；清洁疵点与集绪器、索绪关系更大；回潮率主要受干燥和车间温湿度影响，与汤温关系不大。"},{"id":136,"type":"single","stem":"缫丝生产中，生丝纤度偏粗且各绞之间差异较大，最可能的原因是","options":["定粒数偏多且落绪补位不及时","缫丝速度偏快且张力偏大","索绪汤温度偏低且索绪时间短","集绪器孔径偏小且清洁不及时"],"answer":[0],"explanation":"知识点：定粒与落绪补位对纤度的影响。定粒偏多使整体偏粗，落绪补位不及时造成各绞间波动大。速度偏快、张力偏大主要影响伸长和断头；索绪温度、时间影响解舒和索绪效率；集绪器孔径影响清洁和抱合，不是纤度偏粗的主因。"},{"id":137,"type":"single","stem":"缫丝工在交接班时发现上一班遗留的索绪茧已冷却结块，正确的处置是","options":["直接加入索绪锅继续索绪","重新加热至工艺温度后再索绪","混入新茧中一起索绪","丢弃结块茧不再使用"],"answer":[1],"explanation":"知识点：索绪茧的温度管理与索绪质量。冷却结块的索绪茧丝胶硬化，直接索绪效率低且易损伤茧层，应重新加热至工艺温度后索绪。直接加入会降低索绪效率；混入新茧会影响整体索绪均匀性；直接丢弃造成原料浪费，不是正确处置。"},{"id":138,"type":"single","stem":"生丝纤度检验中，若测得平均纤度为22.5dtex，设计纤度为20.0dtex，则该批生丝的纤度偏差率为","options":["11.1%","12.5%","2.5%","25.0%"],"answer":[1],"explanation":"知识点：纤度偏差率计算。纤度偏差率=（平均纤度-设计纤度）/设计纤度×100%=（22.5-20.0）/20.0×100%=12.5%。11.1%是用差值除以实测值算错；2.5%只取差值未除设计值；25.0%是把差值乘10的错误换算。"},{"id":139,"type":"multi","stem":"缫丝过程中出现生丝纤度偏细，下列处置措施中正确的有","options":["检查定粒数是否偏少并及时补足","检查落绪茧是否未及时补位","适当降低缫丝卷绕速度","检查索绪汤温度是否过高","检查集绪器孔径是否偏大"],"answer":[0,1,3],"explanation":"知识点：纤度偏细的多因素排查。定粒偏少、落绪未补位、索绪汤温过高导致解舒过度使茧丝变细，均为正确排查方向。降低卷绕速度主要影响产量和张力，不改变纤度粗细；集绪器孔径偏大影响清洁和抱合，不是纤度偏细的直接原因。"},{"id":140,"type":"single","stem":"自动缫丝机索绪时，索绪槽水温一般控制在多少范围更有利于茧层丝胶适度膨润而不致茧丝强度下降","options":["60～65℃","75～80℃","88～92℃","98～100℃"],"answer":[2],"explanation":"索绪水温通常控制在88～92℃，可使丝胶适度膨润、茧丝易离解且强度损失小。60～65℃膨润不足、索绪效率低；75～80℃偏低，索绪不充分；98～100℃接近沸水，丝胶过度溶失、茧丝强度下降且易生屑。"},{"id":141,"type":"single","stem":"缫丝过程中发现生丝纤度偏细且波动增大，同时茧子解舒张力偏小，应优先调整的工艺参数是","options":["降低索绪温度以减少落绪","提高缫丝速度以增加产量","适当增加绪下茧粒数并检查定纤装置","加大给茧量并缩短添绪间隔"],"answer":[2],"explanation":"纤度偏细说明单位时间集绪的茧丝总量不足，应增加绪下茧粒数并检查定纤（感知器）是否灵敏。降低索绪温度会减少可缫茧、加剧偏细；提高缫丝速度只会使纤度更细；单纯加大给茧量而不检定纤装置，无法稳定纤度控制。"},{"id":142,"type":"single","stem":"生丝纤度检验中，某批小绞丝用纤度仪称量后计算出的纤度偏差较大，但平均纤度合格，最可能反映的问题是","options":["纤度控制系统细部均匀性差","原料茧茧层率整体偏低","缫丝车间相对湿度过高","生丝回潮率整体偏高"],"answer":[0],"explanation":"平均纤度合格而偏差大，说明纤度围绕中心值波动，属细部均匀性（定纤控制）问题。茧层率偏低影响的是出丝率与纤度水平而非单批偏差；车间湿度偏高主要影响回潮与手感；回潮率偏高会使称量纤度整体偏大而非偏差增大。"},{"id":143,"type":"single","stem":"缫丝工在巡回中发现某绪频繁添绪但生丝仍偏细，检查绪下茧多数为薄皮茧和蛹衬，正确的处置是","options":["继续添绪并提高索绪温度","剔除薄皮茧并补充适缫新茧","降低缫丝速度等待茧层增厚","加大给茧量但不更换茧子"],"answer":[1],"explanation":"薄皮茧、蛹衬有效丝量少，添绪再多也难以达到定纤要求，应剔除并补充适缫茧。提高索绪温度不能改变茧层已薄的事实；降低速度只能减少断绪，不能解决纤度不足；加大给茧量但不换茧，添上的仍是无效茧，纤度依旧偏细。"},{"id":144,"type":"single","stem":"立缫机缫丝时，集绪器（瓷眼）孔径选择过大会直接导致","options":["生丝纤度偏细且易断","生丝抱合不良、颣节增多","茧丝离解困难、落绪增多","缫丝张力过大、丝条发毛"],"answer":[1],"explanation":"集绪器孔径过大时丝条集束不良，抱合力下降，颣节增多。孔径过大不会使纤度变细或增加断头；离解困难主要与煮茧、索绪有关；张力过大一般与孔径偏小或丝道阻力大有关，而非孔径过大。"},{"id":145,"type":"single","stem":"煮茧后茧层丝胶溶失过多，缫丝时最可能出现的现象是","options":["茧丝离解容易但断绪明显增多","茧丝离解困难且落绪增多","索绪效率高但生丝纤度偏粗","缫丝张力稳定且颣节减少"],"answer":[0],"explanation":"丝胶溶失过多使茧丝间胶着减弱，离解容易，但茧丝本身强度下降，断绪增多。离解困难、落绪增多是煮茧不足或丝胶未充分膨润的表现；纤度偏粗与绪下茧粒数或定纤有关；颣节减少、张力稳定不符合丝胶过度溶失的实际。"},{"id":146,"type":"single","stem":"缫丝车间相对湿度偏低时，生丝回潮率下降，对纤度称量结果的影响是","options":["称量纤度偏大","称量纤度偏小","纤度偏差消失","纤度不发生变化"],"answer":[1],"explanation":"生丝回潮率下降即含水减少，同样长度下称量质量减小，计算纤度偏小。称量纤度偏大是回潮率偏高的结果；纤度偏差由控制均匀性决定，不会因湿度低而消失；纤度必然随回潮变化，不会不变。"},{"id":147,"type":"single","stem":"自动缫丝机感知器（定纤装置）隔距调整偏大时，最可能出现的纤度变化是","options":["生丝纤度整体偏细","生丝纤度整体偏粗","生丝纤度偏差减小","生丝纤度不受影响"],"answer":[1],"explanation":"感知器隔距偏大时，需更多茧丝才能触发停止添绪，导致绪下茧粒数偏多、纤度整体偏粗。整体偏细是隔距偏小或感知过灵的结果；偏差减小与隔距无关；隔距直接决定控制点，必然影响纤度。"},{"id":148,"type":"single","stem":"缫丝时发现丝条上出现较多环颣，检查索绪体、集绪器均正常，应重点检查的部件是","options":["停 鼓 轮 与 给 茧 机 构","丝 鞘 与 络 交 部 分","煮 茧 机 的 渗 透 程 序","茧 丝 的 纤 度 检 验 台"],"answer":[1],"explanation":"环颣多因丝条在丝鞘、络交处捻合或摩擦形成，应检查丝鞘长度、络交钩状态。停鼓轮与给茧机构影响添绪与纤度；煮茧渗透影响离解与落绪；纤度检验台属检验环节，不产生环颣。"},{"id":149,"type":"single","stem":"缫丝工在交接班时发现本班生丝平均纤度合格但纤度最大偏差超标，交接记录中最应重点说明的是","options":["当班原料茧的茧层率数值","当班定纤装置的调整与异常处理情况","当班车间的温湿度平均值","当班索绪锅的换水次数"],"answer":[1],"explanation":"平均纤度合格而最大偏差超标，核心在定纤控制的稳定性，交接应说明感知器隔距调整、故障处理等。茧层率影响纤度水平与出丝率；温湿度均值影响回潮与整体纤度；索绪换水次数影响索绪效率，均非最大偏差的主要交代内容。"},{"id":150,"type":"single","stem":"缫丝过程中发生断绪，重新索绪添绪前应先确认的事项是","options":["索绪槽内有无绪茧及茧子离解状态","缫丝速度是否已调到最高","给茧机是否已停止运转","生丝检验台的称量是否完成"],"answer":[0],"explanation":"断绪后需先确认索绪槽内有可添的绪茧且茧丝离解良好，才能有效添绪。速度是否最高与添绪准备无关；给茧机停止运转会妨碍添绪而非确认事项；检验台称量属后续检验，与现场添绪无关。"},{"id":151,"type":"multi","stem":"缫丝工在控制生丝纤度时，下列做法有助于减小纤度偏差的有","options":["定期检查并校准感知器隔距","按茧层厚薄分类缫制、合理配茧","提高索绪温度至接近沸点","保持给茧机构添绪动作准确稳定","随意增减绪下茧粒数以便操作"],"answer":[0,1,3],"explanation":"校准感知器、分类配茧、保证添绪稳定均直接有利于纤度均匀。提高索绪温度至近沸会使丝胶过度溶失、茧丝强度下降，反而增加波动；随意增减绪下茧粒数会破坏定纤控制，使偏差增大。"},{"id":152,"type":"single","stem":"缫丝时发现茧丝纤度突然偏细，操作工在索绪汤温正常的情况下应优先检查哪个环节","options":["茧子是否煮熟偏生","集绪器是否堵塞","丝鞘长度是否偏短","缫丝汤温度是否偏低"],"answer":[0],"explanation":"知识点：纤度偏细的常见原因。煮熟偏生的茧子茧丝不易离解，被强行缫取时实际有效纤度偏细，索绪汤温正常时优先查煮熟度。集绪器堵塞会造成断头或纤度不匀而非单纯偏细。丝鞘长度偏短影响抱合与除糙，不直接导致纤度变细。缫丝汤温度偏低主要影响解舒和断头，不是纤度偏细的首查项。"},{"id":153,"type":"single","stem":"自动缫丝机运行中给茧机出现漏添，茧斗内茧量忽多忽少，最应先调整的部位是","options":["探索机构灵敏度","给茧机振动频率","茧斗内茧量检测装置","添绪机构定位"],"answer":[1],"explanation":"知识点：给茧机添茧均匀性调节。给茧机漏添多因振动频率与茧斗落茧节奏不匹配，应先调振动频率。探索机构灵敏度影响的是索绪效率和绪下茧量信号，不是添茧量本身。茧斗检测装置故障会报警停机而非忽多忽少。添绪机构定位偏差会造成添绪位置错，不会造成茧量波动。"},{"id":154,"type":"single","stem":"缫丝车间相对湿度偏低时，对生丝抱合最直接的影响是","options":["丝条回潮率下降，抱合变差","茧丝离解困难，断头增多","丝鞘张力增大，纤度偏粗","集绪器摩擦力减小，丝条松散"],"answer":[0],"explanation":"知识点：车间温湿度与生丝抱合关系。湿度偏低使丝条回潮率下降，丝胶干燥发脆，抱合变差。茧丝离解困难主要与煮茧和索绪汤温有关。丝鞘张力与缫丝汤温和缫速关系更大，不是湿度直接影响。集绪器摩擦力与瓷眼磨损相关，不因湿度减小而变小。"},{"id":155,"type":"single","stem":"缫丝工在巡回中发现某绪丝鞘频繁散开，其他绪正常，最可能的原因是","options":["该绪缫丝汤温偏高","该绪丝鞘捻数不足","车间相对湿度偏低","该绪集绪器孔径偏大"],"answer":[1],"explanation":"知识点：丝鞘形成与捻数。丝鞘散开多因捻数不足或丝鞘长度不够，属单绪问题。缫丝汤温偏高影响全机多绪，不会只影响一绪。湿度偏低影响整批丝，不是单绪。集绪器孔径偏大影响除糙和张力，一般不会单独造成丝鞘散开。"},{"id":156,"type":"single","stem":"采用定纤缫丝时，生丝纤度控制的核心依据是","options":["茧丝纤度与绪下茧粒数","索绪汤温度与缫速","丝鞘长度与集绪器孔径","缫丝汤温度与车间湿度"],"answer":[0],"explanation":"知识点：定纤缫丝原理。定纤缫丝通过检测绪下茧粒数和茧丝纤度来推算并控制生丝纤度。索绪汤温和缫速影响解舒与断头，不是纤度控制核心依据。丝鞘长度和集绪器孔径影响抱合除糙，不直接定纤。缫丝汤温和湿度影响缫丝状态，不是定纤依据。"},{"id":157,"type":"single","stem":"生丝切断检验中，切断次数偏多的丝批，其缫丝过程中最可能存在的操作问题是","options":["丝鞘捻数偏多","缫丝张力波动大","索绪汤温偏低","给茧机茧量偏少"],"answer":[1],"explanation":"知识点：切断与缫丝张力。切断次数多说明丝条存在薄弱点，缫丝张力波动大易造成丝条损伤。丝鞘捻数偏多反而抱合好，不是切断多的原因。索绪汤温偏低影响解舒，间接影响但非最直接操作问题。给茧机茧量偏少影响添绪均匀，不直接造成切断。"},{"id":158,"type":"single","stem":"缫丝汤温度过高时，对生丝质量最典型的不利影响是","options":["丝色变暗、手感发糙","纤度偏细、偏差增大","抱合变差、切断增多","丝条回潮率偏高"],"answer":[0],"explanation":"知识点：缫丝汤温与丝色手感。汤温过高使丝胶溶失过多，丝色变暗、手感发糙。纤度偏细主要与煮熟度和绪下茧数有关。抱合变差和切断增多更多与张力、丝鞘相关。回潮率偏高与车间湿度关系更大。"},{"id":159,"type":"single","stem":"缫丝工在交接班时发现上一班留下的丝鞘长度普遍偏短，正确的处置是","options":["按工艺要求重新调整丝鞘长度后再开车","直接开车，缫出的丝按降级处理","提高缫丝汤温补偿抱合不足","增大给茧机振动频率补偿纤度"],"answer":[0],"explanation":"知识点：丝鞘长度与工艺执行。丝鞘长度是工艺参数，接班发现不符应先调整再开车。直接开车降级处理属于放弃工艺控制。提高汤温不能补偿丝鞘不足。增大振动频率与丝鞘无关，属错误对应。"},{"id":160,"type":"multi","stem":"缫丝过程中出现生丝纤度偏粗，可能的原因有","options":["绪下茧粒数偏多","茧丝纤度偏粗","集绪器孔径偏大","丝鞘捻数偏多"],"answer":[0,1],"explanation":"知识点：纤度偏粗原因。绪下茧粒数偏多和茧丝本身纤度偏粗都会使生丝纤度偏粗。集绪器孔径偏大影响除糙和张力，不改变纤度。丝鞘捻数偏多影响抱合，不改变纤度。"},{"id":161,"type":"single","stem":"生丝纤度控制中，发现某绪丝条持续偏细则应优先调整","options":["降低缫丝车速以延长落绪时间","增加该绪集合茧粒数","提高索绪锅温度使丝胶软化","减小丝鞘长度以降低张力"],"answer":[1],"explanation":"生丝纤度由集合茧粒数与茧丝纤度共同决定，丝条持续偏细说明该绪有效茧粒数不足，应增加该绪集合茧粒数。降低车速主要影响产量和落绪节奏；提高索绪温度影响索绪不直接增粗丝条；减小丝鞘长度改变张力而非纤度。"},{"id":162,"type":"single","stem":"缫丝过程中丝鞘的作用是","options":["增加丝条张力并促进水分挤出与抱合","降低丝条温度防止丝胶过度溶解","拉细丝条使纤度均匀下降","分离落绪茧与正绪茧便于除绪"],"answer":[0],"explanation":"丝鞘通过交叉捻合使丝条产生张力，同时挤出水分、促进丝胶凝结与丝条抱合，是缫丝的关键工序。降低温度、拉细丝条、分离落绪茧均非丝鞘的功能。"},{"id":163,"type":"single","stem":"检验生丝纤度时，纤度偏差反映的是","options":["生丝平均纤度与名义纤度的差值","各绞丝纤度对平均纤度的离散程度","生丝最大纤度与最小纤度之比","生丝纤度随时间变化的趋势"],"answer":[1],"explanation":"纤度偏差是各绞（各段）丝纤度对平均纤度的离散程度，反映纤度均匀性。平均纤度与名义纤度之差是纤度偏差的另一种表述易混，但标准检验中偏差指离散程度；最大最小之比与时间趋势均非其定义。"},{"id":164,"type":"single","stem":"缫丝车间发现某台缫丝机绪下茧粒数忽多忽少，最可能的原因是","options":["缫丝锅水温波动导致茧层溶解不均","添绪机构失灵或添绪不及时","丝鞘长度调整不当使张力波动","索绪锅绪丝量过多造成并绪"],"answer":[1],"explanation":"绪下茧粒数忽多忽少直接反映添绪环节不稳定，添绪机构失灵或添绪不及时是常见原因。水温波动影响茧层溶解；丝鞘长度影响张力；索绪量过多影响并绪，均不直接造成茧粒数频繁波动。"},{"id":165,"type":"single","stem":"缫丝工在并绪操作时，正确的做法是","options":["将落绪茧直接并入正绪茧继续缫丝","将正绪茧的绪丝合并到同一绪头上","把不同纤度的茧混在同一绪中缫制","将绪丝剪断后重新索绪再并绪"],"answer":[1],"explanation":"并绪是将正绪茧的绪丝合并到同一绪头，保证纤度与绪头稳定。落绪茧不能直接并入正绪；不同纤度茧混缫会造成纤度不匀；剪断重索属于重新索绪而非并绪操作。"},{"id":166,"type":"single","stem":"下列哪项是缫丝机停缫后丝条产生“硬颣”的常见原因","options":["丝鞘捻合不足使水分残留","缫丝车速过快导致丝条来不及干燥","丝条在丝鞘处局部丝胶凝结过厚","索绪锅温度过低使绪丝未充分软化"],"answer":[2],"explanation":"硬颣是丝条局部丝胶凝结过厚形成的糙块，多因丝鞘处丝胶堆积或张力不均造成。丝鞘捻合不足使水分残留会形成松颣；车速快与干燥无直接关系；索绪温度过低影响索绪不直接形成硬颣。"},{"id":167,"type":"single","stem":"缫丝车间对生丝进行纤度检验取样时，正确的做法是","options":["从每台缫丝机同一绪头固定取样","按规定绞数和间隔从不同绪头随机取样","只取纤度最均匀的丝绞作为样品","从落绪茧缫制的丝条中单独取样"],"answer":[1],"explanation":"纤度检验样品应具代表性，需按规定绞数和间隔从不同绪头随机取样。固定同一绪头、只取最均匀丝绞、只取落绪茧丝条均会使样品失去代表性。"},{"id":168,"type":"single","stem":"缫丝过程中发现丝条张力突然增大且丝鞘发白，下一步应","options":["立即增加缫丝车速以拉直丝条","检查丝鞘是否被丝胶堵塞并清理","降低索绪锅温度减少丝胶溶解","增加集合茧粒数增粗丝条"],"answer":[1],"explanation":"丝鞘发白且张力突增常提示丝鞘处丝胶堆积堵塞，应检查并清理丝鞘。增加车速会加剧张力；降低索绪温度不解决丝鞘堵塞；增加茧粒数改变纤度而非解决张力异常。"},{"id":169,"type":"multi","stem":"缫丝工在控制生丝纤度均匀性时，下列哪些做法是正确的","options":["保持绪下茧粒数稳定并及时添绪","按茧丝纤度差异合理配茧","定期检查丝鞘状态防止丝胶堆积","提高缫丝车速以缩短落绪间隔","将不同庄口茧混缫以平衡纤度"],"answer":[0,1,2],"explanation":"稳定茧粒数、合理配茧、保持丝鞘状态均是控制纤度均匀性的正确做法。提高车速会缩短落绪间隔但易造成添绪不及时，影响均匀性；不同庄口茧纤度差异大，混缫反而加剧纤度波动。"},{"id":170,"type":"single","stem":"缫丝机索绪时水温偏低会导致下列哪种现象","options":["索绪效率下降、绪丝量不足","茧层胶着加重、索绪过快","丝胶溶失过多、丝条发脆","茧丝强力升高、断头减少"],"answer":[0],"explanation":"知识点：索绪水温与茧层丝胶软化程度的关系。水温偏低时丝胶软化不充分，茧丝不易离解，索绪效率下降、绪丝量不足，故A正确；B中胶着加重不会导致索绪过快，逻辑矛盾；C是水温偏高、时间过长的后果；D强力升高与索绪水温偏低无直接因果，且断头减少说法不成立。"},{"id":171,"type":"single","stem":"缫丝过程中发现生丝纤度持续偏细，在茧质正常的前提下应优先调整","options":["降低缫丝速度以增加落绪茧补充","适当增加缫丝茧粒数或调入偏粗茧","提高索绪温度使茧丝离解更快","加大集绪器孔径减小丝条张力"],"answer":[1],"explanation":"知识点：纤度控制中茧粒数与纤度的对应关系。纤度偏细说明单位长度内茧丝根数或总截面不足，应增加茧粒数或搭配偏粗茧，故B正确；A降速只影响产量和落绪，不改变已成丝条的纤度；C索绪温度影响解舒不影响纤度数值；D集绪器孔径影响丝条成形与张力，不能使纤度变粗。"},{"id":172,"type":"single","stem":"缫丝车间测定解舒率时，正确的取样与煮茧状态应是","options":["随机抽取干茧直接进行缫丝试验","抽取经过正常煮茧的茧进行缫丝试验","抽取鲜茧未经烘杀蛹直接试验","抽取茧层最厚的茧单独进行试验"],"answer":[1],"explanation":"知识点：解舒率测定的试样要求。解舒率反映煮熟茧的离解性能，须用经正常煮茧处理的茧样试验，故B正确；A干茧未煮无法离解；C鲜茧未经烘杀蛹不符合工艺状态；D只取厚茧不具代表性，测定结果失真。"},{"id":173,"type":"single","stem":"缫丝机集绪器（磁眼）孔径选择的主要依据是","options":["原料茧的茧幅大小","生丝的公定回潮率","生丝的名义纤度","煮茧汤的温度高低"],"answer":[2],"explanation":"知识点：集绪器孔径与生丝纤度的匹配。集绪器孔径需与生丝名义纤度相适应，纤度粗选大孔径、纤度细选小孔径，故C正确；A茧幅影响索绪和理绪；B回潮率是检验指标，与孔径无关；D汤温属煮茧参数，不决定孔径。"},{"id":174,"type":"single","stem":"缫丝时丝条出现明显颣节，检查发现添绪时绪丝接头过长，正确的处置是","options":["提高缫丝速度把接头拉细","调整添绪操作使接头短而平齐","降低索绪温度减少绪丝量","更换更大孔径的集绪器"],"answer":[1],"explanation":"知识点：添绪接头质量与颣节的关系。接头过长会形成粗节颣，应通过规范添绪操作使接头短而平齐，故B正确；A提速不能消除粗节反而增加断头；C索绪温度影响解舒不影响接头长度；D换大孔径集绪器不能去除已形成的颣节。"},{"id":175,"type":"single","stem":"缫丝工在巡回中发现某绪茧量明显减少但丝条未断，下一步应优先","options":["立即停车重新索绪理绪","及时补添茧粒维持纤度","加大缫丝速度减少落绪","关闭该绪等待自然落完"],"answer":[1],"explanation":"知识点：缫丝巡回操作中的补添茧处置。茧量减少而丝条未断时应及时补添茧粒以维持纤度和连续生产，故B正确；A停车重索会造成不必要的产量损失；C提速会加剧落绪；D关闭该绪属于放任，违反操作规范。"},{"id":176,"type":"single","stem":"煮茧过程中渗透不充分最可能造成的缫丝后果是","options":["解舒率偏高、缫丝顺利","缫丝中落绪增多、纤度波动","茧丝强力下降、丝色变暗","索绪时间缩短、绪丝整齐"],"answer":[1],"explanation":"知识点：煮茧渗透与解舒及缫丝稳定性的关系。渗透不充分使茧层内部丝胶软化不均，缫丝时落绪增多、纤度波动，故B正确；A解舒率偏高与渗透不足不符；C强力下降和丝色变暗多为煮茧过度或水质问题；D索绪时间缩短与渗透不足无关。"},{"id":177,"type":"single","stem":"生丝检验中切断次数指标主要用于评价","options":["生丝的纤度粗细是否均匀","生丝在缫丝过程中的断头频次","生丝的断裂强度高低","生丝的清洁与洁净程度"],"answer":[1],"explanation":"知识点：切断次数指标的含义。切断次数反映缫丝过程中生丝断头的频次，故B正确；A纤度均匀性由纤度偏差评价；C断裂强度由强力检验评价；D清洁洁净由疵点和洁净度检验评价。"},{"id":178,"type":"single","stem":"缫丝机缫制细纤度生丝时，与粗纤度相比通常需要","options":["减少茧粒数并适当降低缫丝速度","增加茧粒数并提高缫丝速度","保持茧粒数不变仅提高汤温","减少茧粒数并提高索绪温度"],"answer":[0],"explanation":"知识点：不同纤度缫丝工艺参数的匹配。细纤度生丝单位长度茧丝根数少，需减少茧粒数，同时为减少断头常适当降速，故A正确；B方向相反；C保持粒数不变无法得到细纤度；D减粒正确但提高索绪温度与纤度控制无关。"},{"id":179,"type":"single","stem":"某缫丝工在交接班时发现上一班遗留的生丝小䈅（丝片）回潮率明显偏低，正确的处置是","options":["直接并入本班产品称重计产","按规定的平衡回潮条件处理后检验","喷洒清水提高回潮率后送检","提高车间温度让其自然吸湿"],"answer":[1],"explanation":"知识点：生丝回潮率与检验前平衡处理要求。回潮率异常的小䈅须按规定的平衡条件处理后再检验，故B正确；A直接并入会使重量和检验结果失真；C喷水会造成局部回潮不匀甚至霉变；D单纯升温不能保证达到规定平衡回潮。"},{"id":180,"type":"single","stem":"缫丝过程中发现绪丝卷绕张力偏大、丝条频繁切断，应先检查的部件是","options":["索绪帚的磨损程度","停丝片与张力轮的配合状态","缫丝槽水温是否偏低","集绪器瓷眼是否堵塞"],"answer":[1],"explanation":"知识点：张力异常与断头的关系。停丝片与张力轮共同控制丝条卷绕张力，配合失当会直接导致张力偏大、断头增多；索绪帚只影响索绪效率；水温偏低影响解舒而非张力；集绪器瓷眼堵塞会造成丝条受阻但表现为丝条毛糙、张力骤增，不是首选排查件。"},{"id":181,"type":"single","stem":"生丝纤度检验中，同一绞丝内各段纤度差异过大，最可能反映的缫丝操作问题是","options":["丝鞘长度偏短","定粒数控制不稳","缫丝车速偏高","绪下茧粒数偏多"],"answer":[1],"explanation":"知识点：纤度均匀性与定粒控制。纤度差异源于缫丝过程中茧粒数波动，定粒数不稳直接造成纤度忽粗忽细；丝鞘长度偏短影响抱合与除糙；车速偏高影响产量与断头；绪下茧粒数偏多是总量问题而非均匀性问题。"},{"id":182,"type":"single","stem":"缫丝车间采用自动缫丝机时，感知器的作用是","options":["探测绪下茧粒数并控制给茧","检测丝条纤度并记录数据","调节缫丝槽水温保持恒定","牵引丝条通过集绪器"],"answer":[0],"explanation":"知识点：自动缫丝机感知器功能。感知器探测绪下茧粒数，信号传给给茧机构以补充或停止给茧，从而稳定定粒；检测纤度是检验工序；控温由加热装置完成；牵引丝条靠卷绕机构。"},{"id":183,"type":"single","stem":"缫丝时丝条经过集绪器后出现明显毛糙、糙颣增多，最应优先检查的是","options":["集绪器瓷眼是否破损或积垢","缫丝槽内水温是否过高","卷绕线速度是否过快","索绪汤温度是否偏低"],"answer":[0],"explanation":"知识点：集绪器对生丝外观质量的影响。集绪器瓷眼破损或积垢会刮擦丝条，造成毛糙和糙颣；水温过高影响解舒与丝色；卷绕过快影响张力与断头；索绪汤温度影响索绪效果，与丝条毛糙无直接关系。"},{"id":184,"type":"single","stem":"解舒不良的茧子在缫丝时通常表现出的特征是","options":["茧丝离解顺利、断头少","茧丝离解困难、落绪多","茧层含水率偏低","茧丝纤度偏细且均匀"],"answer":[1],"explanation":"知识点：解舒与缫丝的关系。解舒不良指茧丝离解困难，缫丝时落绪多、断头多、消耗增加；解舒顺利则断头少；含水率偏低属于茧质干燥问题；纤度偏细均匀与解舒无直接对应。"},{"id":185,"type":"single","stem":"缫丝工在巡回操作中发现某绪茧粒数持续偏少但感知器未报警，下一步正确的处置是","options":["立即关闭该绪等待检修","人工补足茧粒并观察感知器动作","调低缫丝车速减少断头","加大索绪汤温度加快索绪"],"answer":[1],"explanation":"知识点：自动缫丝机异常处置。感知器未报警而茧粒偏少，说明给茧或感知环节可能滞后，应先人工补足并观察感知器是否恢复正常动作；直接关绪影响产质量；调车速和加温均不针对茧粒数问题。"},{"id":186,"type":"single","stem":"生丝抱合检验中，抱合次数偏低最能说明的问题是","options":["丝条纤度偏粗","茧丝之间胶着不足","缫丝槽水温偏高","卷绕张力偏小"],"answer":[1],"explanation":"知识点：抱合与茧丝胶着。抱合次数反映茧丝间胶着牢固程度，偏低说明胶着不足，多与解舒、汤温、丝鞘等有关；纤度偏粗是纤度指标；水温偏高可能影响胶着但非直接结论；张力偏小影响卷装而非抱合检验结果。"},{"id":187,"type":"single","stem":"缫丝槽水温控制偏低时，对缫丝过程的主要影响是","options":["解舒变差、落绪增多","丝条抱合过紧","茧层溶解过快","纤度自动变细"],"answer":[0],"explanation":"知识点：缫丝槽水温与解舒。水温偏低使丝胶溶解不足，解舒变差、落绪增多；抱合过紧与丝鞘和胶着有关；茧层溶解过快是水温偏高；纤度变化由定粒决定而非水温直接控制。"},{"id":188,"type":"single","stem":"缫丝工在交接班时发现缫丝槽内水面有较多浮丝和蛹屑，正确的处置是","options":["继续缫丝待下班后统一清理","用捞丝工具及时捞除并检查索绪效果","加大缫丝车速将浮丝带走","向槽内加冷水使浮丝下沉"],"answer":[1],"explanation":"知识点：缫丝槽清洁与浮丝处理。浮丝和蛹屑会缠绕丝条造成断头和糙颣，应及时捞除并检查索绪、理绪效果；继续缫丝会恶化质量；加车速不能清除浮丝；加冷水会改变水温影响解舒。"},{"id":189,"type":"single","stem":"生丝纤度偏差检验中，纤度偏差值偏大时，缫丝车间首先应核查的环节是","options":["定粒数与给茧机构的稳定性","缫丝槽水温的昼夜波动","卷绕机构的线速度设定","集绪器瓷眼的清洁周期"],"answer":[0],"explanation":"知识点：纤度偏差的成因。纤度偏差主要来自定粒数波动和给茧不稳，故首先核查定粒与给茧机构；水温波动影响解舒与断头；卷绕线速度影响张力；集绪器清洁影响外观而非纤度偏差。"},{"id":190,"type":"single","stem":"缫丝时发现茧丝切断频繁，检查索绪锅水温只有55℃，按常规工艺应首先将索绪水温调整到哪个范围再观察","options":["65～75℃","40～45℃","80～85℃","90～95℃"],"answer":[0],"explanation":"索绪水温通常控制在65～75℃使茧层丝胶适度膨润、便于绪丝离解；55℃偏低导致索绪不充分、切断增多。40～45℃更低，丝胶膨润不足；80～85℃过高易使丝胶过度溶失、茧层损伤；90～95℃更甚，且外层丝质受损。"},{"id":191,"type":"single","stem":"缫丝工发现集绪器上粘附的丝胶硬块逐渐增大，正确的日常处置是","options":["用湿布包住硬块待其软化后再擦除","停机后取下集绪器用热水浸软再清洗","用指甲直接刮除硬块后继续缫丝","向集绪器加少量冷水使硬块自行脱落"],"answer":[1],"explanation":"集绪器丝胶硬块需停机取下用热水浸软后清洗，才能既除净又不损伤瓷眼。湿布包裹不下机无法彻底软化且影响生产；指甲刮除易划伤瓷眼内壁；冷水不能溶胀丝胶，硬块不会自行脱落。"},{"id":192,"type":"single","stem":"缫制20/22D生丝时，若实测纤度中心值持续偏细，在其他条件不变情况下应优先调整的是","options":["降低缫丝车速以增加茧层落绪量","增加每绪的茧粒数或改用偏粗茧","提高索绪温度使绪丝变粗","减少集绪器孔径以增加丝条张力"],"answer":[1],"explanation":"生丝纤度由茧丝纤度与并合茧粒数决定，中心值偏细应增加茧粒数或选偏粗茧。降速不改变并合根数与纤度；提高索绪温度影响绪丝离解而非纤度；集绪器孔径减小只会增加张力、摩擦，不改变纤度。"},{"id":193,"type":"single","stem":"缫丝过程中某绪丝条突然变粗且伴有多根茧丝缠绕，最可能的原因是","options":["添绪时把多粒茧的绪丝同时添入","集绪器孔径偏大导致丝条松散","缫丝张力偏小使丝条松弛","索绪温度偏低使绪丝离解不全"],"answer":[0],"explanation":"添绪应每次添一粒茧的绪丝，同时添入多粒会造成并合根数突增、丝条变粗缠绕。集绪器孔径偏大只影响丝条抱合紧密度；张力偏小使丝条松弛但不增粗；索绪温度偏低影响绪丝获取效率，不直接造成纤度突增。"},{"id":194,"type":"single","stem":"生丝检验中切断次数偏多，而纤度偏差与均匀度尚可，应重点排查的工序环节是","options":["茧层丝胶含量与索绪、添绪操作","茧丝纤度与并合茧粒数","缫丝张力与集绪器孔径","生丝回潮率与平衡时间"],"answer":[0],"explanation":"切断多与丝条局部薄弱、丝胶膨润不当、索绪添绪不良有关。茧丝纤度与并合数主要决定纤度偏差；张力与集绪器孔径影响抱合与外观；回潮率与平衡时间影响检验重量与强力，不直接对应切断次数。"},{"id":195,"type":"single","stem":"某批茧缫丝时绪丝量明显不足、索绪效率低，检查发现索绪锅水量偏少、茧在锅内堆积，正确处置是","options":["加大索绪帚摆动频率使茧充分摩擦","补足水量并保持茧在锅内均匀分布","提高索绪温度使茧层快速软化","延长索绪时间让茧层充分膨润"],"answer":[1],"explanation":"索绪效率依赖水量充足与茧粒均匀分布，水量偏少、堆积会使茧相互挤压、绪丝难以离解。加大摆动频率在堆积状态下会损伤茧层；提高温度易溶失丝胶；单纯延长时间不能解决堆积问题。"},{"id":196,"type":"single","stem":"缫丝工在缫制细纤度生丝时，为减少切断，下列操作中最应避免的是","options":["适当降低缫丝车速","保持索绪温度稳定","频繁用手触摸丝条检查纤度","及时清除集绪器丝胶"],"answer":[2],"explanation":"频繁用手触摸丝条易造成丝条局部损伤、沾污并增加切断。降低车速、稳定索绪温度、及时清除集绪器丝胶都是减少切断的常规措施，不应避免。"},{"id":197,"type":"single","stem":"某绪缫丝时丝条张力突然增大、丝条发亮，检查集绪器与丝鞘均正常，下一步应重点检查的是","options":["茧层丝胶是否过熟导致丝条发脆","缫丝锅水温是否偏低使丝条收缩","丝条是否被绞花或卷绕部位卡住","索绪帚是否磨损使绪丝变粗"],"answer":[2],"explanation":"张力突增且丝条发亮，多因丝条在绞花、导丝部件或卷绕处被卡住。丝胶过熟使丝条发脆易断但不一定张力突增；水温偏低使丝条收缩是渐变；索绪帚磨损影响绪丝量，不造成张力突增。"},{"id":198,"type":"multi","stem":"缫丝过程中为稳定生丝纤度、减少偏差，下列操作正确的有","options":["按茧丝纤度大小分级配茧、合理确定并合粒数","添绪时坚持一粒茧添一缕绪丝","定期检查并校正纤度感知器与定纤装置","为赶产量可临时增加每绪茧粒数","发现纤度偏粗时立即减少索绪时间"],"answer":[0,1,2],"explanation":"分级配茧、一粒添一缕、校正定纤装置都是稳定纤度的正确做法。临时增加茧粒数会直接使纤度变粗，属错误操作；减少索绪时间影响绪丝获取效率，不能纠正纤度偏粗。"},{"id":199,"type":"single","stem":"缫丝时发现茧丝纤度偏细，需在缫丝过程中调整，下列做法中最先应检查的是","options":["缫丝汤温度是否偏高","索绪时间是否过短","添绪配茧是否搭配不当","丝鞘长度是否偏长"],"answer":[2],"explanation":"知识点：生丝纤度控制中配茧与添绪的关系。纤度偏细主要与配茧（并绪茧粒数、茧层厚薄搭配）有关，故先检查配茧搭配。汤温偏高影响解舒与丝胶溶失，不是纤度偏细的首要因素；索绪时间过短主要影响索绪效率与绪丝量；丝鞘长度影响抱合与张力，不直接决定纤度粗细。"},{"id":200,"type":"single","stem":"立缫机缫丝过程中，丝条在丝鞘处产生明显颤动的常见原因是","options":["集绪器孔径过大","丝鞘捻度不足或丝鞘过长","缫丝汤温度偏低","茧丝解舒张力过小"],"answer":[1],"explanation":"知识点：丝鞘作用与常见故障判断。丝鞘捻度不足或过长会使丝条在鞘处抖动、抱合不良。集绪器孔径过大主要影响丝条集束与纤度均匀，不引发鞘处颤动；汤温偏低影响解舒和落绪；解舒张力过小会使丝条松弛而非鞘处颤动。"},{"id":201,"type":"single","stem":"自动缫丝机运转中某绪频繁发生落绪，检查发现该绪茧子沉在缫丝汤底部不浮动，最可能的原因是","options":["缫丝汤温度偏低导致茧腔吸水不足","索绪帚磨损使绪丝未被索出","该绪缫丝汤浓度过高","该绪茧子已缫完需换新茧"],"answer":[0],"explanation":"知识点：落绪与茧子浮沉的关系。正常缫丝时茧腔吸水后应悬浮，汤温偏低使茧腔吸水不足、茧子下沉，易造成落绪。索绪帚磨损影响的是索绪效果而非茧子浮沉；汤浓度过高不是茧子下沉的主因；茧子缫完表现为茧壳变薄、丝量减少，不是下沉不浮动。"},{"id":202,"type":"single","stem":"缫丝工在测定生丝纤度时，采用纤度丝绞长度为450米，其纤度单位为旦尼尔，则该绞丝的纤度值等于","options":["重量克数乘以2","重量克数乘以4","重量克数除以2","重量克数乘以8"],"answer":[1],"explanation":"知识点：旦尼尔定义与纤度丝绞规格。旦尼尔定义为9000米丝重1克为1旦，450米为9000米的1/20，故纤度（旦）=重量（克）×20÷……按常规450米绞，纤度=克数×4（以常用450米、1/2克为1旦的换算关系）。选项A、C、D均为把换算系数记错，属于易混的数字关系。"},{"id":203,"type":"single","stem":"缫丝车间发现某批生丝纤度偏差偏大，经查各绪缫丝汤温度不一致，下列纠正措施中最恰当的是","options":["统一各绪缫丝汤温度并稳定在工艺范围","延长索绪时间使绪丝更整齐","增加集绪器孔径使丝条更顺畅","降低丝鞘捻度以减少张力波动"],"answer":[0],"explanation":"知识点：纤度偏差与汤温均匀性的关系。汤温不一致会使各绪解舒与落绪情况不同，造成纤度波动，故应统一并稳定汤温。延长索绪时间影响索绪效率，不解决纤度偏差；增大集绪器孔径会影响集束与纤度均匀；降低丝鞘捻度影响抱合，不针对纤度偏差。"},{"id":204,"type":"single","stem":"缫丝过程中发现丝条上有明显的糙颣，检查索绪和理绪操作，最可能产生糙颣的环节是","options":["索绪时绪丝被索断产生短纤维","理绪时未将无绪茧和绪丝清理干净","缫丝汤温度过高使丝胶过度溶失","丝鞘捻度偏大使丝条抱合过紧"],"answer":[1],"explanation":"知识点：糙颣产生原因与理绪操作。理绪不净会使无绪茧、乱绪丝混入丝条形成糙颣。索绪索断产生的是落绪和绪丝损失，不是糙颣主因；汤温过高影响解舒与丝胶，不直接产生糙颣；丝鞘捻度偏大影响抱合与张力，不产生糙颣。"},{"id":205,"type":"single","stem":"自动缫丝机缫丝时，感知器的作用是检测纤度变化并控制添绪，若感知器隔距调得过大，最可能导致","options":["生丝纤度偏细且添绪不及时","生丝纤度偏粗且添绪过于频繁","生丝纤度均匀但抱合变差","生丝纤度不变但丝鞘捻度减小"],"answer":[0],"explanation":"知识点：感知器隔距与添绪控制。感知器隔距过大，对纤度变细的感知迟钝，添绪不及时，丝条偏细。隔距过小才会添绪过频致纤度偏粗；隔距与抱合、丝鞘捻度无直接关系。"},{"id":206,"type":"single","stem":"缫丝工在操作中需要判断茧子解舒好坏，下列现象中说明解舒较好的是","options":["索绪时绪丝容易索出且落绪少","茧子沉在汤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anation":"知识点：纤度波动的排查。绪下茧粒数记录正常但纤度忽粗忽细，说明实际参与吐丝的茧粒数有波动，给茧机给茧不稳定是首要怀疑对象。温度、车速、湿度恒定不会造成这种波动。"},{"id":266,"type":"multi","stem":"缫丝过程中出现生丝匀度不良、纤度偏差偏大，下列处置措施中合理的有","options":["检查并校正给茧机的给茧均匀性","适当降低缫丝车速以稳定丝条张力","检查集绪器孔径与丝道是否匹配","提高索绪汤温度至沸腾以加快解舒","增加绪下茧粒数以提高产量"],"answer":[0,1,2],"explanation":"知识点：匀度不良与纤度偏差的综合处置。校正给茧均匀性、适当降速稳定张力、检查集绪器孔径与丝道匹配，均有助于改善匀度和纤度偏差。索绪汤沸腾会使丝胶过度溶失、解舒恶化；盲目增加绪下茧粒数会加剧纤度波动，不能提高匀度质量。"},{"id":267,"type":"single","stem":"缫丝时发现绪丝（正绪茧的丝绪）数量不足，为补充正绪茧，索绪锅中索绪帚的正确操作方式是","options":["在无绪茧集中区域作小幅快速往复扫动","在整锅茧面上作大幅缓慢的环状扫动","贴近锅底沿同一方向持续单向推扫","在汤面中央作上下垂直提落扫动"],"answer":[0],"explanation":"知识点：索绪操作要领。正绪茧由索绪帚在无绪茧区局部扫动使其露出丝绪，故正确项是集中区域小幅快速往复扫。B项大幅环扫会打乱茧层且效率低；C项贴底单向推扫容易压瘪蚕茧且不针对无绪茧；D项垂直提落不能使茧子相互摩擦露出绪丝。"},{"id":268,"type":"single","stem":"缫丝过程中生丝纤度突然变细，检查发现是某粒茧子已经落绪未被及时补上，此时挡车工首要的正确处置是","options":["立即从正绪茧中添补一粒新茧","先把该绪剩余茧全部打落重索","降低缫丝车速等绪丝自然恢复","加大索绪锅温度使落绪茧复绪"],"answer":[0],"explanation":"知识点：落绪添补操作。落绪后纤度变细，正确做法是从正绪茧中及时添补一粒，故A对。B项全部打落会中断生产且浪费正绪茧；C项降速不能改变已落绪的粒数，纤度不会恢复；D项落绪茧已成无绪茧，提温并不能使其自动复绪。"},{"id":269,"type":"single","stem":"在缫丝车间的集绪器（磁眼）使用中，若磁眼孔径过大，对生丝质量造成的典型影响是","options":["生丝纤度偏细且额节增多","生丝纤度偏粗且抱合变差","生丝颣节被拉断而减少","生丝回潮率显著升高"],"answer":[1],"explanation":"知识点：集绪器孔径与纤度控制。磁眼孔径过大时不能有效控制丝条，多根茧丝易并合通过，导致纤度偏粗且抱合不良，故B对。A项孔径过大不会使纤度偏细；C项颣节减少与孔径过大无直接关系；D项回潮率由干燥和给湿决定，与磁眼孔径无关。"},{"id":270,"type":"single","stem":"立缫机缫丝时，缫丝汤（茧汤）温度一般应保持在","options":["40～45℃","55～60℃","70～80℃","90～95℃"],"answer":[2],"explanation":"知识点：缫丝汤温度控制。缫丝汤温度通常控制在70～80℃，既保证茧丝胶着适当软化又便于解舒，故C对。A项40～45℃偏低，丝胶软化不足解舒差；B项55～60℃仍偏低，解舒不充分；D项90～95℃过高，易使茧层过软、丝条发脆且能耗大。"},{"id":271,"type":"single","stem":"当缫丝机上某绪生丝出现连续性的细小颣节（环颣、小结），排查时首先应检查的部件是","options":["停篗装置与丝辫位置","集绪器（磁眼）是否破损或积垢","缫丝汤的给水流量大小","索绪锅的索绪帚转速"],"answer":[1],"explanation":"知识点：颣节产生的常见原因。集绪器破损或积垢会刮擦丝条产生细小颣节，故应首先检查磁眼，B对。A项停篗装置与丝辫位置异常多引起断头或卷绕问题；C项给水流量影响汤温和汤色，不直接产生细小颣节；D项索绪帚转速影响索绪效率，与已缫丝条颣节无直接关系。"},{"id":272,"type":"single","stem":"在缫丝生产中，给湿（小篗给湿）工序的主要作用是","options":["提高生丝回潮率以改善柔软度和减少静电","降低生丝回潮率以便于长期储存","增加生丝纤度使外观更饱满","提高生丝强力以抵抗后续织造张力"],"answer":[0],"explanation":"知识点：给湿工序的作用。给湿是为了提高生丝回潮率、改善柔软度、减少静电和断头，故A对。B项方向相反，给湿是提高而非降低回潮率；C项给湿不改变纤度；D项强力主要由蚕丝本身和缫丝工艺决定，给湿不能提高强力。"},{"id":273,"type":"single","stem":"自动缫丝机在运转中出现感知器（探索器）频繁误报落绪，但实际茧子并未落绪，最可能的原因是","options":["感知器隔距调整不当或感应片积垢","缫丝汤温度偏低导致解舒不良","小篗卷绕速度过快造成丝条张力大","索绪锅正绪茧供给量偏多"],"answer":[0],"explanation":"知识点：自动缫丝机感知器故障判断。感知器隔距不当或感应片积垢会造成误感知，故A对。B项汤温偏低影响解舒，表现是实际落绪增多而非误报；C项卷绕速度过快影响张力与断头，不直接使感知器误报；D项正绪茧偏多属供给正常，与感知器误报无关。"},{"id":274,"type":"single","stem":"某挡车工在缫制一批生丝时，发现丝条在集绪器处频繁断头，且断口呈明显毛羽状，下列处置中最合理的是","options":["更换集绪器并检查丝道是否刮擦","提高缫丝汤温度使丝条更柔软","降低索绪帚转速减少对茧子的冲击","增加每绪茧粒数以提高丝条强度"],"answer":[0],"explanation":"知识点：断头原因与处置。断口呈毛羽状提示丝道刮擦，故应更换集绪器并检查丝道，A对。B项提温不能消除刮擦造成的毛羽断头；C项索绪帚转速与已缫丝条断头无关；D项增加茧粒数会改变纤度，且不能解决刮擦问题。"},{"id":275,"type":"single","stem":"缫丝时每绪的茧粒数确定后，若实际添补的茧粒数长期偏少，对生丝最直接的影响是","options":["平均纤度偏细且纤度偏差可能增大","生丝颣节数量明显减少","生丝抱合性能显著提高","生丝回潮率明显下降"],"answer":[0],"explanation":"知识点：茧粒数与纤度的关系。每绪茧粒数决定生丝纤度，添补偏少使平均纤度偏细，且波动增大，故A对。B项茧粒数少不会使颣节减少；C项抱合与茧粒数无直接正相关；D项回潮率由给湿干燥决定，与茧粒数无关。"},{"id":276,"type":"single","stem":"在缫丝车间，一位挡车工发现所缫生丝的小篗丝条排列出现重叠、塌边现象，下列处置中最恰当的是","options":["调整丝辫导丝机构与卷绕张力","提高缫丝汤温度改善丝条柔软度","增加索绪锅中正绪茧的数量","更换集绪器以减小丝条颣节"],"answer":[0],"explanation":"知识点：小篗卷绕成形不良的处置。丝条重叠、塌边属卷绕成形问题，应调整丝辫导丝机构和卷绕张力，故A对。B项汤温影响解舒不影响卷绕成形；C项正绪茧数量影响添补不影响丝条排列；D项集绪器影响颣节和纤度，不解决成形问题。"},{"id":277,"type":"single","stem":"缫丝过程中发现茧丝纤度偏细，需要调整缫丝速度，正确的调节方向是","options":["适当降低缫丝速度以增加茧丝抱合","适当提高缫丝速度以减少落绪","保持速度不变只调整茧量","适当降低缫丝速度以增大张力"],"answer":[0],"explanation":"知识点：缫丝速度与纤度的关系。茧丝偏细时降低车速可使单位时间内卷取长度减少、纤度增大，故A正确。B提高车速会使纤度更细，方向相反。C保持速度不变无法解决纤度偏细问题。D降低车速的目的不是增大张力，张力由张力装置决定，概念混淆。"},{"id":278,"type":"single","stem":"自动缫丝机上的停箴装置（探索装置）主要作用是","options":["检测茧丝纤度并自动调整车速","检测落绪并自动停箴便于索绪","检测丝鞘张力防止断头","检测水温并自动补水"],"answer":[1],"explanation":"知识点：自动缫丝机停箴装置功能。停箴装置在感知落绪时使箴子停止卷取，便于挡车工索绪续接，故B正确。A纤度检测一般由感知器或定纤装置完成，非停箴装置。C丝鞘张力由丝鞘装置控制。D水温检测属于煮茧或缫丝槽温控系统。"},{"id":279,"type":"single","stem":"生丝纤度检验中，纤度偏差反映的是","options":["生丝各段纤度与平均纤度的离散程度","生丝纤度均值与名义纤度的差值","生丝最大纤度与最小纤度之差","生丝纤度随时间变化的趋势"],"answer":[0],"explanation":"知识点：纤度偏差定义。纤度偏差指各段纤度对平均纤度的离散程度，故A正确。B描述的是纤度偏差率或平均纤度与名义纤度的关系，概念错位。C描述的是极差，不是偏差。D描述的是纤度变化趋势，属于另一指标。"},{"id":280,"type":"single","stem":"缫丝车间发现同一批蚕茧解舒率明显偏低，最合理的工艺处置是","options":["提高缫丝车速以缩短茧丝浸渍时间","降低缫丝车速并适当提高索绪温度","增大索绪帚扫动频率以减少落绪","减少茧量并提高丝鞘张力"],"answer":[1],"explanation":"知识点：解舒率与缫丝工艺调整。解舒率低说明茧丝离解困难，应降低车速、适当提高索绪温度促进离解，故B正确。A提高车速会加剧落绪和断头，方向错误。C增大扫动频率可能损伤茧丝，不能根本解决解舒差。D减少茧量不解决解舒问题，提高张力易断头。"},{"id":281,"type":"single","stem":"缫丝工在巡回中发现丝条出现明显糙疵，正确的第一步处置是","options":["立即剪断丝条重新索绪","先检查丝鞘是否正常再决定处置","提高缫丝车速冲掉糙疵","加大丝鞘张力拉直糙疵"],"answer":[1],"explanation":"知识点：糙疵异常处置。糙疵可能由丝鞘异常、茧丝离解不良等引起，应先检查丝鞘等部位再处置，故B正确。A直接剪断重新索绪未查明原因，可能重复出现。C提高车速不能消除糙疵反而可能加剧。D加大张力可能拉断丝条，不能消除糙疵。"},{"id":282,"type":"single","stem":"缫丝过程中索绪温度过高容易造成的后果是","options":["茧层表面丝胶过度溶失，茧丝强度下降","茧丝离解困难，落绪增多","索绪效率降低，绪丝头减少","缫丝槽水温下降，纤度变粗"],"answer":[0],"explanation":"知识点：索绪温度对茧丝质量的影响。索绪温度过高会使丝胶过度溶失，损伤茧丝，故A正确。B离解困难通常是温度偏低或茧质问题。C索绪效率降低与温度过高关系不直接。D温度过高不会使缫丝槽水温下降。"},{"id":283,"type":"single","stem":"缫丝工在交接班时发现箴子上的生丝出现明显色差，正确的处置是","options":["继续缫丝待下班后统一处理","立即停车并追溯该箴丝的生产时段","调整缫丝车速使色差均匀","加大索绪量掩盖色差"],"answer":[1],"explanation":"知识点：生丝色差异常处置。色差可能因原料茧批次或工艺波动引起，应立即停车追溯生产时段，故B正确。A继续生产会扩大不合格品。C色差不能靠车速调整消除。D加大索绪量不能掩盖色差，反而浪费原料。"},{"id":284,"type":"single","stem":"缫丝槽水温偏低对缫丝过程的主要影响是","options":["茧丝离解变慢，落绪和断头增多","茧丝纤度变细，偏差减小","丝胶溶失加快，丝条发粘","索绪效率提高，绪丝头增多"],"answer":[0],"explanation":"知识点：缫丝槽水温的作用。水温偏低使茧丝离解变慢，落绪和断头增多，故A正确。B水温偏低不会使纤度变细或偏差减小，纤度主要受茧丝和车速影响。C丝胶溶失加快通常与温度偏高有关。D水温偏低不利于索绪，绪丝头不会增多。"},{"id":285,"type":"single","stem":"缫丝工在操作中需要调整丝鞘长度，丝鞘过长通常会导致","options":["丝条张力过大，断头增多","丝条张力过小，抱合不良","丝条纤度变粗，偏差增大","丝条清洁度下降，糙疵增多"],"answer":[0],"explanation":"知识点：丝鞘长度与张力的关系。丝鞘过长使丝条张力增大，易造成断头，故A正确。B张力过小通常是丝鞘过短。C纤度主要受茧丝和车速影响，丝鞘长度不直接改变纤度。D清洁度与丝鞘长度无直接因果关系。"},{"id":286,"type":"single","stem":"下列哪项操作符合缫丝车间生丝纤度控制的规范要求","options":["根据茧丝纤度变化及时调整缫丝车速和茧量","固定车速和茧量以保证纤度稳定","按经验每隔两小时调整一次车速","以落绪次数为依据统一调整车速"],"answer":[0],"explanation":"知识点：纤度控制操作规范。应根据茧丝纤度变化及时调整车速和茧量，故A正确。B固定参数不能适应茧丝波动，易造成纤度偏差。C定期调整不能及时响应纤度变化。D落绪次数不能直接反映纤度，依据错误。"},{"id":287,"type":"multi","stem":"缫丝过程中出现纤度偏差偏大的情况，下列处置措施中合理的有","options":["检查并调整缫丝车速使纤度趋于稳定","检查茧丝纤度是否因原料茧批次差异引起","适当调整茧量以补偿纤度波动","提高索绪温度使茧丝离解更充分","加大丝鞘张力以拉细偏粗的丝段"],"answer":[0,1,2],"explanation":"知识点：纤度偏差偏大的综合处置。A调整车速可使纤度趋于稳定，正确。B原料茧批次差异是纤度偏差常见原因，应检查，正确。C适当调整茧量可补偿纤度波动，正确。D索绪温度影响离解而非直接调节纤度偏差，不是针对性措施。E加大张力不能拉细丝段，反而易断头，错误。"},{"id":288,"type":"single","stem":"缫丝时发现绪下茧量突然减少而车速未变，应首先检查的部位是","options":["索绪锅温度是否偏低","给茧机茧斗存量与输送带","集绪器瓷眼是否磨损","卷绕张力是否过大"],"answer":[1],"explanation":"绪下茧量骤减多因给茧供应中断，应先查给茧机茧斗与输送带。索绪锅温度偏低影响索绪效率而非直接断供；集绪器磨损影响丝条通道与纤度；卷绕张力过大会增加断头但不致绪下茧骤减。"},{"id":289,"type":"single","stem":"生丝纤度控制中，缫丝汤温度偏高的直接影响是","options":["茧层离解过快使环颣增多","丝胶溶失增加使抱合变差","茧丝强力上升使断头减少","纤度偏差自动收窄"],"answer":[1],"explanation":"汤温过高会加剧丝胶溶失，导致丝条抱合不良、强度下降。离解过快主要与索绪温度和时间有关；茧丝强力不会因汤温升高而上升；纤度偏差需靠定纤装置与工艺控制，汤温高不会自动收窄。"},{"id":290,"type":"single","stem":"自动缫丝机定纤感知器隔距调得过小，最可能出现的结果是","options":["生丝纤度偏粗、偏差增大","生丝纤度偏细、断头增多","给茧数减少但纤度不变","卷绕速度自动下降"],"answer":[1],"explanation":"隔距过小使感知器对细段更敏感、给茧偏少，导致纤度偏细并增加断头。隔距过大会使纤度偏粗；给茧数减少必然影响纤度；卷绕速度由传动决定，不因隔距变化自动下降。"},{"id":291,"type":"single","stem":"缫丝车间相对湿度过低时，对生丝质量的主要影响是","options":["丝条回潮率下降、易产生静电断头","茧层含水上升、索绪困难","丝胶溶失加快、抱合变差","纤度感知器灵敏度提高"],"answer":[0],"explanation":"湿度过低使丝条回潮下降、静电增加，易造成断头和毛羽。茧层含水上升是湿度偏高或浸茧问题；丝胶溶失主要受温度和时间影响；感知器灵敏度由机械调整决定，不随湿度提高。"},{"id":292,"type":"single","stem":"关于缫丝中“落绪”与“添绪”的关系，正确的做法是","options":["落绪后立即停车等待全部绪头补齐","落绪后由给茧机自动添绪并保持绪下茧数","落绪后将茧斗内新茧全部换掉","落绪后降低索绪温度再继续缫丝"],"answer":[1],"explanation":"正常缫丝中落绪由给茧机自动添绪，维持绪下茧数稳定以保证纤度。停车等齐会中断生产并造成纤度波动；全部换新茧没有必要且浪费；降索绪温度与落绪添绪无直接对应关系。"},{"id":293,"type":"single","stem":"生丝检验中“纤度偏差”反映的是","options":["丝条平均粗细与名义纤度的差值","各绞丝纤度对平均纤度的离散程度","丝条最大纤度与最小纤度之差","丝片宽度与标准宽度的差异"],"answer":[1],"explanation":"纤度偏差指各绞（或各段）纤度围绕平均值的离散程度，反映均匀性。平均粗细与名义值之差是纤度偏差的另一表述中的“平均纤度偏差”，最大最小之差是极差，丝片宽度属成形指标。"},{"id":294,"type":"single","stem":"缫丝工在巡回中发现某绪丝条明显偏粗且持续，正确的处置顺序是","options":["先减小卷绕张力再观察纤度变化","先检查定纤感知器与给茧数再调整","先更换集绪器再重新索绪","先降低索绪温度再继续缫丝"],"answer":[1],"explanation":"持续偏粗应先查定纤感知器隔距、给茧数等纤度控制环节，再作调整。卷绕张力不改变纤度；集绪器与索绪温度不是偏粗的直接原因，先换先调会延误判断。"},{"id":295,"type":"single","stem":"缫丝汤（缫丝槽）中丝胶浓度过高时，最适宜的处置是","options":["加大缫丝汤流量或适时换汤","提高索绪温度以分解丝胶","降低卷绕速度减少丝胶带入","向汤中加入少量茧层浸泡液"],"answer":[0],"explanation":"丝胶浓度过高会影响丝条离解与质量，应通过加大流量或换汤稀释。提高索绪温度会加剧丝胶溶失；降速不解决汤液浓度；加入茧层浸泡液只会进一步提高丝胶浓度。"},{"id":296,"type":"single","stem":"下列哪项属于缫丝设备日常点检中必须确认的“安全联锁”项目","options":["缫丝汤温度显示是否正常","防护罩未闭合时主机能否启动","索绪帚磨损是否超过标记","丝片宽度是否符合工艺卡"],"answer":[1],"explanation":"安全联锁点检的核心是确认防护罩等未闭合时设备不能启动。汤温显示属工艺参数点检；索绪帚磨损、丝片宽度属质量与工艺点检，均非安全联锁项目。"},{"id":297,"type":"single","stem":"缫丝挡车工在给绪发现某粒茧丝纤度明显偏细时，应优先检查的部位是","options":["集绪器是否有阻塞或磨损","索绪帚是否夹带蛹衬","茧丝是否已落绪需重新索绪","丝鞘是否因张力过小散开"],"answer":[0],"explanation":"集绪器孔径阻塞或磨损会束缚丝条、使实际通过的茧丝根数减少或丝条被刮细，是纤度偏细的常见设备原因；索绪帚夹带蛹衬影响索绪质量而非已缫丝的纤度；落绪后丝条会中断而非单纯变细；丝鞘散开通常造成纤度偏粗或丝条松散。"},{"id":298,"type":"single","stem":"自动缫丝机在缫制细纤度生丝时，若给茧机每添一粒茧的添绪周期明显缩短，最可能导致的生丝质量问题是","options":["纤度偏差增大甚至出现匀度不匀","抱合次数下降导致丝条松散","丝色变深影响色泽检验","强力下降但纤度保持稳定"],"answer":[0],"explanation":"添绪周期缩短意味着单位时间添入茧粒增多，实际参与缫丝的茧粒数波动加大，纤度会忽粗忽细，直接表现为纤度偏差和匀度恶化；抱合主要与丝鞘捻数有关；丝色与添绪频率无直接关系；添绪波动首先影响纤度而非仅强力。"},{"id":299,"type":"single","stem":"某缫丝车间生丝检验发现清洁成绩偏低，翻查丝条上集中出现大小糙节，最应先排查的工序环节是","options":["索绪温度与索绪时间是否不足","缫丝车速是否与纤度设定不匹配","丝鞘长度是否比工艺要求偏短","车间相对湿度是否长期低于标准"],"answer":[0],"explanation":"索绪温度偏低或时间不足会使茧层外层未能充分膨润，索绪时带下蛹衬碎屑形成糙节，是清洁成绩下降的典型原因；车速与纤度设定影响的是纤度控制而非糙节；丝鞘偏短影响抱合与水分；湿度偏低更多影响缫丝张力与断头，而非直接产生大量糙节。"},{"id":300,"type":"multi","stem":"某缫丝工在自动缫丝机上处理纤度偏差偏大的生丝时，下列哪些操作有助于将纤度控制在工艺范围内？","options":["适当调节给茧机捞茧量，使添绪茧粒数稳定","提高索绪温度使茧层充分膨润后再缫丝","通过感知器反馈及时调整缫丝速度以稳定纤度","将纤度控制偏差设定值调大以减少添绪动作"],"answer":[0,2],"explanation":"知识点：生丝纤度控制的核心是稳定添绪粒数和缫丝速度，使单位长度生丝质量均匀。A项正确，捞茧量稳定能保证添绪茧粒数一致，直接减小纤度波动；C项正确，感知器反馈调节缫丝速度可补偿生丝纤度变化，是自动缫丝机纤度控制的基本手段。B项错误，索绪温度过高或膨润过度主要影响解舒和索绪效率，并不能直接纠正已产生的纤度偏差；D项错误，调大纤度控制偏差设定值会放宽控制精度、增大纤度波动，与减小偏差的目标相反。"}]}