(液压支架(柱)修理工)岗位技能竞赛理论考试试题库

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1、We will continue to improve the companys internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of ev

2、aluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication zero resistan

3、ce. To constantly perfect ERP, and BFS+, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to

4、perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS+, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure zero. To strengthen

5、ing Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medic

6、al, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of

7、zero risk. To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to imple

8、mentation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. To further standardize

9、trading, and strive to achieve according to law, standardize and fair. Innovation of performance management, to ensure that potential employees zero fly. To strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance ma

10、nagement. To further quantify and refine employee standards . Work, full play party, and branch, and members in five type Enterprise construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening four good leadership construction, full play levels

11、cadres in enterprise development in the(液压支架(柱)修理工)岗位技能竞赛理论考试试题库第一部分 判断题1、互换性是指不同规格的一批零件可以互相替换使用的特性。()2、液压系统的职能符号只能表达元件的作用、原理,而不能反映元件的结构。()3、所谓金属的机械性能是指金属抵抗外力的能力。()4、伸长率又称延伸率,即材料试样被拉断前,标距长度的增加量与原标距长度之百分比。()5、合金结构钢可用于制造齿轮、圆环链和输送机刮板等。()6、灰铸铁牌号HT200中的数字表示抗拉强度的最大值为200Nmm2。()7、小型检修场所常用的可移动的起吊工具,手动单轨小车和电动

12、葫芦的车轮都是沿着单根工字钢下翼缘行走的。()8、转动百分表的表圈即可调整表面刻线与长指针的相对位置。( )9、利用内径百分表测量时要注意表杆的轴线应与被测孔的轴线平行。( )10、液体、气体作用在单位面积上的力称为压力。( )11、为了防止錾子在手中转动,錾身常用已轧成六棱形的碳素工具钢锻成。()12、细锉刀可用于锉淬火工件,但不得锉软金属,以防锉齿堵塞。()13、ZDl600713型支撑式液压支架的顶梁采用的是分式铰接结构,其中前梁是由短柱控制的。( )14、掩护式液压支架适用于有强烈周期来压和瓦斯涌出量大的煤层。( )15、支撑掩护式支架无论在稳定或不稳定的顶板下都可使用。()16、ZF

13、S40001928型支架是四连杆中位放顶煤支架。( )17、立柱缸筒要求材料可焊性好,常用可焊性较好的27SiMn、25CrMo等无缝钢管。()18、导向套及装在导向套内起减磨导向作用的导向环与活柱之间都是无间隙的。( )19、立柱机械加长杆是用优质圆钢加工而成的,一般使用40Cr。()20、代号为Q140B5w的千斤顶适用于液压支架推拉千斤顶、平衡千斤顶和伸缩梁千斤顶。()21、安全阀也是一种溢流阀。( )22、在支架液压系统中用以闭锁液压缸中的液体,使之承载的控制元件为液控单向阀。()23、操作推溜时要注意,推溜工作应在输送机停止状态下进行。( )24、操作掩护式支架平衡千斤顶时要注意,老

14、顶来压时,应向平衡千斤顶活塞腔供液。( )25、在井下,特别是在工作面不允许拆卸内注式单体液压支柱,只可拆卸外注式单体液压支柱。( )26、如发现支柱“压死”,严禁用炮崩,应该用回柱绞车回撤。( )27、乳化液不良是造成鼓形密封圈产生窜液的主要原因之一。( )28、简1压管机的活动压头是由30CrMnTi合金钢制成的。( )29、千斤顶出厂,对活塞杆腔进行低压、高压、稳压试验时,千斤顶应伸至最大行程。( )30、ZX-1型缸柱清洗洗机主要用于对内、外注式单体液压支柱液压缸、活柱体进行清洗。()31、丁腈橡胶与聚氯乙烯并用,可以提高胶料的硬度。( )32、PH值是用以表示水的酸碱性质的,PH值越

15、小碱性越强,PH值越大酸性越强。()33、使用过程中的泵站乳化液箱内的乳化液浓度不得低于3。( )34、液压支架井下检修工技术操作规程规定:处理单架故障时,要关闭邻架的断路阀。( )35、金属极电弧焊是以两块焊件作为两个电极,利用电极之间产生的电弧热量熔化金属,使两块金属熔合成一体的。()36、碳钢焊条型号“E4315”中的数字表示熔敷金属抗拉强度最小值为43、15kgfmm2。( )37、喷焊炬是用来进行氧乙炔焰金属粉末喷焊的一种设备。( ) 38、埋弧堆焊又叫焊剂层下自动堆焊,电弧是在焊剂层下面进行的。()39、操作手工电弧焊时应注意:停机时,要先停电焊机负荷,方可切断电源开关。() 40、ZGX-1型液压支架缸筒清洗机采用的清洗方式是往复式直线冲擦。( )41、设计时给定的尺寸称基本尺寸,又称实际尺寸。()42、公差永远不等于零,也没有正负之分。( )43、在基轴制中,基准轴的上偏差等于零,下偏差为负值。()44、孔、轴过盈配合时,孔与轴的尺寸相比较,可能稍大,也可能稍小。( ) 45、由帕斯卡原理可知:作用在液压千斤顶活塞上的推力大小与活塞的有效面积成正比。( )46、在立柱升降的液压传动系统中的安全阀是为了防止顶板下沉而设置的。( )47、双作用千斤顶的活塞直径、行程及供液的实际流量一定时,则活塞杆越粗,其缩回

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