【判断题】
严格执行安全工作命令票制度,每日工作前必须由安全员向全体施工人员宣读安全工作命令票。
A. 对
B. 错
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答案
B
解析
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空调缺氟,应先查漏,后加氟。
A. 对
B. 错
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拆除室外机时,对应的地面上要有专人看护。
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拆除施工严禁立体交叉作业。
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安全网是用来防止人、物坠落,或用来避免、减轻坠落及物体打击伤害的网具,包括安全平网和安全立网。
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安全带护腰带宽度不应小于30mm,长度不应小于500mm,接触腰的一面应有柔软、吸汗、透气的材料。
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一般民用建筑由基础、墙或柱、楼层和地层、楼梯、屋顶、门窗六大部分组成。
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B. 错
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按性质和规律分,力学中常见的力有引力(重力)、弹性力、摩擦力、介质的阻力、电场力、洛伦兹力等。
A. 对
B. 错
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跳闸安全装置的作用,是在操作到危险点之前,自动使机器停止或反方向运动。
A. 对
B. 错
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建筑各部分均由许多结构构件和建筑配件组成。
A. 对
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伤残和死亡是常见的高处作业工伤事故。
A. 对
B. 错
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座板式单人吊具、吊带、衬带、拦腰带局部有破损时,不影响使用。
A. 对
B. 错
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杆上工作和杆下配合人员必须戴安全帽。
A. 对
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梯子是一种常用的辅助登高或直接作为登高作业的工具。
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2008年3月18日17时左右,邹某到某商厦进行霓虹灯常规维护,约17时30分,邹某通知配电室送电;20时40分,值班人员与邹某联系未果;20时50分左右,值班人员到商厦五楼楼顶查看,发现邹某坠落于商厦楼顶霓虹灯架附近,在其身上未发现安全带。值班人员立即通知110、120,经理20急救中心现场抢救后,于21时45宣布邹某死亡。邹某死亡的直接原因是未系安全带。
A. 对
B. 错
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室内机漏水一定是冷凝水管堵塞造成的。
A. 对
B. 错
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拆除工程项目负责人依法承担拆除工程安全生产、文明施工、环境防护等责任。
A. 对
B. 错
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作业时,移动那发现自锁器失效应立即停止作业。
A. 对
B. 错
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广告施工霓虹灯安装作业使用挂梯,挂梯随时移动不可能要求施工人员在挂梯移动时每次都离开挂梯,因此挂梯移动时拖动人员不得用力过猛,匀速移动。
A. 对
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高处作业人员应衣着灵便,宜穿软底鞋。
A. 对
B. 错
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剪刀式高空作业平台(车)有电瓶、柴油发动机两种方式。
A. 对
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经医生检查凡患有贫血、高血压、抽筋、心脏病及严重关节炎等不适应高处作业等疾病不得参加高处作业。
A. 对
B. 错
【判断题】
坠落冲击发生后,自锁器在安全绳上的下滑距离最大不超过1米。
A. 对
B. 错
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安装室外机尽量避开对面的门窗。
A. 对
B. 错
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一个物体在另一个粗糙物体表面滑动、有相对运动趋势的滚动,则物体受到滑动摩擦力、静摩擦力或滚动摩擦力。
A. 对
B. 错
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连锁装置的基本原理是:只有安全装置关合时,机器才能转动。
A. 对
B. 错
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机器的危险部件停止运动时,安全装置无需开启。
A. 对
B. 错
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拆除施工时,应按照施工组织设计选定的机械设备及吊装方案进行施工,严禁超载作业或任意扩大使用范围。
A. 对
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高处作业上、下梯子时禁止手持物攀登以防滑落。
A. 对
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大型静置设备、设施拆除工程开工前,应根据工程特点、设备、设施情况、工程量等编制安全专项方案,应经项目经理签字批准后实施。
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钢丝绳与铁件绑扎处应衬垫软物。
A. 对
B. 错
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地下室、人防设备安装需要焊接时,电焊工应穿绝缘鞋,戴绝缘手套、护目镜,持有效证件,开用火证,设防火设施,设旁站人员。
A. 对
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拆除工程安全专项方案应经技术负责人或监理工程师签字批准后实施,一经批准不得变更。
A. 对
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竖向管道安装按图纸要求检查确认各层预留孔洞、预埋套管的坐标、标高。
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使用安全带时,应检查安全带的部件是否完整,有无损伤;安全绳是否存在断股、烫伤的现象。
A. 对
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所有的作用力一定同时有反作用力。
A. 对
B. 错
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一般情况下只要接触表面粗糙且研究对象在其表面上滑动(或滚动)就能容易判断出滑动摩擦力和滚动摩擦力。
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机械设备可造成碰撞、夹击、剪切、卷入等多种危害。
A. 对
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A. 对
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搅拌机在运转时,严禁将工具伸入滚筒内扒料,加料斗升起时,料斗下方不得有人。
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