http://www.esafety.cn/blog/wll/66030/index.html

《安全生技术》考前练习（49）

作者[孙锡云] 发表于[2011-9-2 10:58:00]

《安全生技术》考前练习（49）

　　1．在吊运危险物料起重机的起升机构上往往安装两个制动器。这就是安全技术措施的（ 　）。
　　A．隔离原则
　　B．冗余原则
　　C．容纳原则
　　D．避让原则

　　2．为防止突然断裂导致重物坠落，吊钩一般采取（ 　）钩或叠片钩。
　　A．锻造
　　B．铸造
　　C．焊接
　　D．切削加工

　　3．起升机构一般采用的钢丝绳滑轮组是（ 　）。
　　A．增速不省力的
　　B．省力不增速的
　　C．既省力又增速的
　　D．不省力也不增速

　　4．为保证安全，动力驱动起重机的起升机构和变幅机构的制动器应采用（ 　）。
　　A．常开式
　　B．常闭式
　　C．综合式
　　D．形式无特定要求

　　5．起重机的起升机构应该采用（ 　）捻钢丝绳，优先采用 钢丝绳。
　　A．交互，线接触
　　B．交互，点接触
　　C．同向，线接触
　　D．同向，点接触

　　6．钢丝绳的绳尾用绳卡固定时，正确的固定卡法是（ 　）。
　　A．所有绳卡的卡板都在长边，U形螺栓扣都在短边
　　B．所有绳卡的U形螺栓扣都在长边，绳卡板都在短边
　　C．相邻绳卡反正交错
　　E．绳卡的方向不受限制

　　7．起重机的安全工作寿命，主要取决于（ 　）不发生破坏的工作年限。
　　A．工作机构
　　B．机构的易损零部件
　　C．金属结构
　　D．电气元件

　　8．对于同一台起重机而言，起重机的起重量与工作级别的关系是（ 　）。
　　A．起重量大，工作级别高
　　B．起重量小，工作级别低
　　C．起重量大，工作级别低
　　D．二者没有直接关系

　　9．起重机的工作级别取决于起重机（ 　）的综合。
　　A．额定起重量与使用频率
　　B．有效起重量与利用等级
　　C．利用等级与载荷状态
　　D．起重量与金属结构形式

　　10．液压伸缩臂式汽车起重机在（ 　）条件下，可以起吊标牌上标定的起重量。
　　A．最短臂长，最大仰角，固定支腿
　　B．最长臂，最大仰角，固定支腿
　　C．最短臂长，最小仰角，地面平坦坚固
　　D．最长臂，最小仰角，地面平坦坚固

　　答案：1．B　　2．A　　3．B　　4．B　　5．A　　6．A　　7．C　　8．D　　9．C　　10．A

  • 标签：注安试题 
  • 圈子：注安之家 

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    原创

    作者[原创(游客)] 发表于[2016-9-30 10:36:15]
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    原创

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    原创

    作者[原创(游客)] 发表于[2016-9-6 16:27:40]
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